Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei
We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Paryev, E.Ya. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research - Klebanoff, Mark A. ELSEVIER, 2018, journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions, Amsterdam |
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| Übergeordnetes Werk: |
volume:1029 ; year:2023 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.nuclphysa.2022.122562 |
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| Katalog-ID: |
ELV05960610X |
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| 100 | 1 | |a Paryev, E.Ya. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei |
| 264 | 1 | |c 2023transfer abstract | |
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| 520 | |a We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. | ||
| 520 | |a We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. | ||
| 650 | 7 | |a Photon-induced reactions |2 Elsevier | |
| 650 | 7 | |a Charmonium production |2 Elsevier | |
| 650 | 7 | |a Hidden-charm pentaquarks |2 Elsevier | |
| 773 | 0 | 8 | |i Enthalten in |n North-Holland Publ. Co |a Klebanoff, Mark A. ELSEVIER |t Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research |d 2018 |d journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions |g Amsterdam |w (DE-627)ELV000986615 |
| 773 | 1 | 8 | |g volume:1029 |g year:2023 |g pages:0 |
| 856 | 4 | 0 | |u https://doi.org/10.1016/j.nuclphysa.2022.122562 |3 Volltext |
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10.1016/j.nuclphysa.2022.122562 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001974.pica (DE-627)ELV05960610X (ELSEVIER)S0375-9474(22)00186-5 DE-627 ger DE-627 rakwb eng 610 VZ 44.92 bkl Paryev, E.Ya. verfasserin aut Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. Photon-induced reactions Elsevier Charmonium production Elsevier Hidden-charm pentaquarks Elsevier Enthalten in North-Holland Publ. Co Klebanoff, Mark A. ELSEVIER Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research 2018 journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions Amsterdam (DE-627)ELV000986615 volume:1029 year:2023 pages:0 https://doi.org/10.1016/j.nuclphysa.2022.122562 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.92 Gynäkologie VZ AR 1029 2023 0 |
| spelling |
10.1016/j.nuclphysa.2022.122562 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001974.pica (DE-627)ELV05960610X (ELSEVIER)S0375-9474(22)00186-5 DE-627 ger DE-627 rakwb eng 610 VZ 44.92 bkl Paryev, E.Ya. verfasserin aut Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. Photon-induced reactions Elsevier Charmonium production Elsevier Hidden-charm pentaquarks Elsevier Enthalten in North-Holland Publ. Co Klebanoff, Mark A. ELSEVIER Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research 2018 journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions Amsterdam (DE-627)ELV000986615 volume:1029 year:2023 pages:0 https://doi.org/10.1016/j.nuclphysa.2022.122562 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.92 Gynäkologie VZ AR 1029 2023 0 |
| allfields_unstemmed |
10.1016/j.nuclphysa.2022.122562 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001974.pica (DE-627)ELV05960610X (ELSEVIER)S0375-9474(22)00186-5 DE-627 ger DE-627 rakwb eng 610 VZ 44.92 bkl Paryev, E.Ya. verfasserin aut Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. Photon-induced reactions Elsevier Charmonium production Elsevier Hidden-charm pentaquarks Elsevier Enthalten in North-Holland Publ. Co Klebanoff, Mark A. ELSEVIER Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research 2018 journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions Amsterdam (DE-627)ELV000986615 volume:1029 year:2023 pages:0 https://doi.org/10.1016/j.nuclphysa.2022.122562 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.92 Gynäkologie VZ AR 1029 2023 0 |
| allfieldsGer |
10.1016/j.nuclphysa.2022.122562 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001974.pica (DE-627)ELV05960610X (ELSEVIER)S0375-9474(22)00186-5 DE-627 ger DE-627 rakwb eng 610 VZ 44.92 bkl Paryev, E.Ya. verfasserin aut Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. Photon-induced reactions Elsevier Charmonium production Elsevier Hidden-charm pentaquarks Elsevier Enthalten in North-Holland Publ. Co Klebanoff, Mark A. ELSEVIER Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research 2018 journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions Amsterdam (DE-627)ELV000986615 volume:1029 year:2023 pages:0 https://doi.org/10.1016/j.nuclphysa.2022.122562 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.92 Gynäkologie VZ AR 1029 2023 0 |
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10.1016/j.nuclphysa.2022.122562 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001974.pica (DE-627)ELV05960610X (ELSEVIER)S0375-9474(22)00186-5 DE-627 ger DE-627 rakwb eng 610 VZ 44.92 bkl Paryev, E.Ya. verfasserin aut Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei 2023transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. Photon-induced reactions Elsevier Charmonium production Elsevier Hidden-charm pentaquarks Elsevier Enthalten in North-Holland Publ. Co Klebanoff, Mark A. ELSEVIER Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research 2018 journal devoted to the experimental and theoretical study of the fundamental constituents of matter and their interactions Amsterdam (DE-627)ELV000986615 volume:1029 year:2023 pages:0 https://doi.org/10.1016/j.nuclphysa.2022.122562 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.92 Gynäkologie VZ AR 1029 2023 0 |
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Enthalten in Historical (retrospective) cohort studies and other epidemiologic study designs in perinatal research Amsterdam volume:1029 year:2023 pages:0 |
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We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. 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We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). 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Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei |
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towards clarifying the possibility of observation of the lhcb hidden-charm pentaquarks p c + ( 4312 ) , p c + ( 4337 ) , p c + ( 4440 ) and p c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei |
| title_auth |
Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei |
| abstract |
We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. |
| abstractGer |
We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. |
| abstract_unstemmed |
We study the near-threshold J / ψ meson photoproduction from protons and nuclei by considering incoherent direct non-resonant ( γ p → J / ψ p , γ n → J / ψ n ) and two-step resonant ( γ p → P c i + → J / ψ p , γ n → P c i 0 → J / ψ n , i = 1 , 2, 3, 4; P c 1 + , 0 = P c + , 0 ( 4312 ) , P c 2 + , 0 = P c + , 0 ( 4337 ) , P c 3 + , 0 = P c + , 0 ( 4440 ) , P c 4 + , 0 = P c + , 0 ( 4457 ) ) charmonium production processes. We calculate the absolute excitation functions, energy and momentum distributions for the non-resonant, resonant and for the combined (non-resonant plus resonant) production of J / ψ mesons on protons as well as, using the nuclear spectral function approach, on carbon and tungsten target nuclei at near-threshold incident photon energies by assuming the spin-parity assignments of the hidden-charm resonances P c + , 0 ( 4312 ) , P c + , 0 ( 4337 ) , P c + , 0 ( 4440 ) and P c + , 0 ( 4457 ) as J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − , J P = ( 1 / 2 ) − and J P = ( 3 / 2 ) − within three different realistic scenarios for the branching ratios of their decays to the J / ψ p and J / ψ n modes (0.25, 0.5 and 1%). We show that will be very hard to measure the P c i + pentaquark states through the scan of the J / ψ total photoproduction cross section on a proton target in the near-threshold energy region around the resonant photon energies of 9.44, 9.554, 10.04 and 10.12 GeV if these branching ratios ∼ 1% and less. We also demonstrate that at these photon beam energies the J / ψ energy and momentum combined distributions considered reveal distinct sensitivity to the above scenarios, respectively, at “low” J / ψ total energies and momenta, which implies that they may be an important tool to provide further evidence for the existence of the pentaquark P c i + and P c i 0 resonances and to get valuable information on their decay rates to the J / ψ p and J / ψ n final states. The measurements of these distributions could be performed in the future at the 12 GeV CEBAF facility. |
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GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA |
| title_short |
Towards clarifying the possibility of observation of the LHCb hidden-charm pentaquarks P c + ( 4312 ) , P c + ( 4337 ) , P c + ( 4440 ) and P c + ( 4457 ) in near-threshold charmonium photoproduction off protons and nuclei |
| url |
https://doi.org/10.1016/j.nuclphysa.2022.122562 |
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| doi_str |
10.1016/j.nuclphysa.2022.122562 |
| up_date |
2024-07-06T22:30:15.867Z |
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