New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction
Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Vesna, V. A. [verfasserIn] Gledenov, Yu. M. [verfasserIn] Nesvizhevsky, V. V. [verfasserIn] Sedyshev, P. V. [verfasserIn] Shulgina, E. V. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2011 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: The European physical journal - Berlin : Springer, 1998, 47(2011), 3 vom: 23. März |
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| Übergeordnetes Werk: |
volume:47 ; year:2011 ; number:3 ; day:23 ; month:03 |
| Links: |
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| DOI / URN: |
10.1140/epja/i2011-11043-2 |
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| Katalog-ID: |
SPR008276714 |
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| 245 | 1 | 0 | |a New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction |
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| 520 | |a Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. | ||
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| 700 | 1 | |a Nesvizhevsky, V. V. |e verfasserin |4 aut | |
| 700 | 1 | |a Sedyshev, P. V. |e verfasserin |4 aut | |
| 700 | 1 | |a Shulgina, E. V. |e verfasserin |4 aut | |
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10.1140/epja/i2011-11043-2 doi (DE-627)SPR008276714 (SPR)i2011-11043-2-e DE-627 ger DE-627 rakwb eng 530 ASE 33.40 bkl 33.50 bkl Vesna, V. A. verfasserin aut New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. Boron (dpeaa)DE-He213 Reactor Power (dpeaa)DE-He213 Neutron Beam (dpeaa)DE-He213 Cold Neutron (dpeaa)DE-He213 Helmholtz Coil (dpeaa)DE-He213 Gledenov, Yu. M. verfasserin aut Nesvizhevsky, V. V. verfasserin aut Sedyshev, P. V. verfasserin aut Shulgina, E. V. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 47(2011), 3 vom: 23. März (DE-627)25372290X (DE-600)1459066-9 1434-601X nnns volume:47 year:2011 number:3 day:23 month:03 https://dx.doi.org/10.1140/epja/i2011-11043-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.40 ASE 33.50 ASE AR 47 2011 3 23 03 |
| spelling |
10.1140/epja/i2011-11043-2 doi (DE-627)SPR008276714 (SPR)i2011-11043-2-e DE-627 ger DE-627 rakwb eng 530 ASE 33.40 bkl 33.50 bkl Vesna, V. A. verfasserin aut New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. Boron (dpeaa)DE-He213 Reactor Power (dpeaa)DE-He213 Neutron Beam (dpeaa)DE-He213 Cold Neutron (dpeaa)DE-He213 Helmholtz Coil (dpeaa)DE-He213 Gledenov, Yu. M. verfasserin aut Nesvizhevsky, V. V. verfasserin aut Sedyshev, P. V. verfasserin aut Shulgina, E. V. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 47(2011), 3 vom: 23. März (DE-627)25372290X (DE-600)1459066-9 1434-601X nnns volume:47 year:2011 number:3 day:23 month:03 https://dx.doi.org/10.1140/epja/i2011-11043-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.40 ASE 33.50 ASE AR 47 2011 3 23 03 |
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10.1140/epja/i2011-11043-2 doi (DE-627)SPR008276714 (SPR)i2011-11043-2-e DE-627 ger DE-627 rakwb eng 530 ASE 33.40 bkl 33.50 bkl Vesna, V. A. verfasserin aut New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. Boron (dpeaa)DE-He213 Reactor Power (dpeaa)DE-He213 Neutron Beam (dpeaa)DE-He213 Cold Neutron (dpeaa)DE-He213 Helmholtz Coil (dpeaa)DE-He213 Gledenov, Yu. M. verfasserin aut Nesvizhevsky, V. V. verfasserin aut Sedyshev, P. V. verfasserin aut Shulgina, E. V. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 47(2011), 3 vom: 23. März (DE-627)25372290X (DE-600)1459066-9 1434-601X nnns volume:47 year:2011 number:3 day:23 month:03 https://dx.doi.org/10.1140/epja/i2011-11043-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.40 ASE 33.50 ASE AR 47 2011 3 23 03 |
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10.1140/epja/i2011-11043-2 doi (DE-627)SPR008276714 (SPR)i2011-11043-2-e DE-627 ger DE-627 rakwb eng 530 ASE 33.40 bkl 33.50 bkl Vesna, V. A. verfasserin aut New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. Boron (dpeaa)DE-He213 Reactor Power (dpeaa)DE-He213 Neutron Beam (dpeaa)DE-He213 Cold Neutron (dpeaa)DE-He213 Helmholtz Coil (dpeaa)DE-He213 Gledenov, Yu. M. verfasserin aut Nesvizhevsky, V. V. verfasserin aut Sedyshev, P. V. verfasserin aut Shulgina, E. V. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 47(2011), 3 vom: 23. März (DE-627)25372290X (DE-600)1459066-9 1434-601X nnns volume:47 year:2011 number:3 day:23 month:03 https://dx.doi.org/10.1140/epja/i2011-11043-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.40 ASE 33.50 ASE AR 47 2011 3 23 03 |
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10.1140/epja/i2011-11043-2 doi (DE-627)SPR008276714 (SPR)i2011-11043-2-e DE-627 ger DE-627 rakwb eng 530 ASE 33.40 bkl 33.50 bkl Vesna, V. A. verfasserin aut New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. Boron (dpeaa)DE-He213 Reactor Power (dpeaa)DE-He213 Neutron Beam (dpeaa)DE-He213 Cold Neutron (dpeaa)DE-He213 Helmholtz Coil (dpeaa)DE-He213 Gledenov, Yu. M. verfasserin aut Nesvizhevsky, V. V. verfasserin aut Sedyshev, P. V. verfasserin aut Shulgina, E. V. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 47(2011), 3 vom: 23. März (DE-627)25372290X (DE-600)1459066-9 1434-601X nnns volume:47 year:2011 number:3 day:23 month:03 https://dx.doi.org/10.1140/epja/i2011-11043-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 33.40 ASE 33.50 ASE AR 47 2011 3 23 03 |
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Vesna, V. A. @@aut@@ Gledenov, Yu. M. @@aut@@ Nesvizhevsky, V. V. @@aut@@ Sedyshev, P. V. @@aut@@ Shulgina, E. V. @@aut@@ |
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A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2011</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Boron</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Reactor Power</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Neutron Beam</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Cold Neutron</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Helmholtz Coil</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gledenov, Yu. 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Vesna, V. A. |
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Vesna, V. A. ddc 530 bkl 33.40 bkl 33.50 misc Boron misc Reactor Power misc Neutron Beam misc Cold Neutron misc Helmholtz Coil New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction |
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530 ASE 33.40 bkl 33.50 bkl New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction Boron (dpeaa)DE-He213 Reactor Power (dpeaa)DE-He213 Neutron Beam (dpeaa)DE-He213 Cold Neutron (dpeaa)DE-He213 Helmholtz Coil (dpeaa)DE-He213 |
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New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction |
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New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction |
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Vesna, V. A. Gledenov, Yu. M. Nesvizhevsky, V. V. Sedyshev, P. V. Shulgina, E. V. |
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Vesna, V. A. |
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10.1140/epja/i2011-11043-2 |
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new results on p -odd asymmetry of $ \gamma$ -quanta emission in 10b(n,$ \alpha$)7$ li^{*} %$ \rightarrow%$ \gamma$ + 7li(g.s.) nuclear reaction |
| title_auth |
New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction |
| abstract |
Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. |
| abstractGer |
Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. |
| abstract_unstemmed |
Abstract. A series of ultra-sensitive experiments has been carried out in 2001-2009 at the ILL measuring P -odd asymmetry in $ \gamma$ -quanta emission in the nuclear reaction 10B (n,$ \alpha$) 7$ Li^{*} %$ \rightarrow%$ \gamma$ + $7Li$(g.s.) with polarized cold neutrons. The resulting value of the asymmetry coefficient is $\ensuremath \alpha_{P\mbox{-}{\rm odd}}= +(0.0 \pm 2.6_{{\rm stat}} \pm 1.1_{{\rm syst}}) \times 10^{-8}$ . These experiments profited from high-intensity PF1B neutron facility and a new version of the integral measuring method: for decreasing experimental uncertainties, the frequency of neutron spin-flip was higher than a typical reactor power noise frequency. Using the new value, we constrain the weak neutral current constant in the cluster model framework to $\ensuremath f_{\pi}^{^{10}\rm B} \leq 0.6 \times 10^{-7}$ (at 90% c.l.). This constraint agrees with that following from the nuclear reaction 6Li (n,$ \alpha$) 3H : $\ensuremath f_{\pi}^{^{6}\rm Li} \leq 1.1 \times 10^{-7}$ (at 90% c.l.). However, they both contradict the “best” value in the quark model by Desplanques, Donoughe, and Holstein $\ensuremath f_{\pi}^{{\rm DDH}}=4.6\cdot 10^{-7}$ . We invite experts in the field to contribute to the theoretical analysis of the problem. |
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New results on P -odd asymmetry of $ \gamma$ -quanta emission in 10B(n,$ \alpha$)7$ Li^{*} %$ \rightarrow%$ \gamma$ + 7Li(g.s.) nuclear reaction |
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| score |
7.4022093 |