Lepton flavor changing in neutrinoless $\tau$ decays
Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the...
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Gespeichert in:
| Autor*in: |
Pham, Xuan-Yem [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1999 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag Berlin Heidelberg 1999 |
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| Übergeordnetes Werk: |
Enthalten in: The European physical journal / C - Springer-Verlag, 1998, 8(1999), 3 vom: Mai, Seite 513-516 |
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| Übergeordnetes Werk: |
volume:8 ; year:1999 ; number:3 ; month:05 ; pages:513-516 |
| Links: |
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| DOI / URN: |
10.1007/s100529901088 |
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OLC2069061752 |
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| 520 | |a Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. | ||
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| 650 | 4 | |a Lepton Number | |
| 650 | 4 | |a Oscillation Experiment | |
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10.1007/s100529901088 doi (DE-627)OLC2069061752 (DE-He213)s100529901088-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Pham, Xuan-Yem verfasserin aut Lepton flavor changing in neutrinoless $\tau$ decays 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 1999 Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. Neutrino Mass Sharp Contrast Neutrino Oscillation Lepton Number Oscillation Experiment Enthalten in The European physical journal / C Springer-Verlag, 1998 8(1999), 3 vom: Mai, Seite 513-516 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:8 year:1999 number:3 month:05 pages:513-516 https://doi.org/10.1007/s100529901088 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4126 GBV_ILN_4277 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4319 AR 8 1999 3 05 513-516 |
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10.1007/s100529901088 doi (DE-627)OLC2069061752 (DE-He213)s100529901088-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Pham, Xuan-Yem verfasserin aut Lepton flavor changing in neutrinoless $\tau$ decays 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 1999 Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. Neutrino Mass Sharp Contrast Neutrino Oscillation Lepton Number Oscillation Experiment Enthalten in The European physical journal / C Springer-Verlag, 1998 8(1999), 3 vom: Mai, Seite 513-516 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:8 year:1999 number:3 month:05 pages:513-516 https://doi.org/10.1007/s100529901088 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4126 GBV_ILN_4277 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4319 AR 8 1999 3 05 513-516 |
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10.1007/s100529901088 doi (DE-627)OLC2069061752 (DE-He213)s100529901088-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Pham, Xuan-Yem verfasserin aut Lepton flavor changing in neutrinoless $\tau$ decays 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 1999 Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. Neutrino Mass Sharp Contrast Neutrino Oscillation Lepton Number Oscillation Experiment Enthalten in The European physical journal / C Springer-Verlag, 1998 8(1999), 3 vom: Mai, Seite 513-516 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:8 year:1999 number:3 month:05 pages:513-516 https://doi.org/10.1007/s100529901088 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4126 GBV_ILN_4277 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4319 AR 8 1999 3 05 513-516 |
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10.1007/s100529901088 doi (DE-627)OLC2069061752 (DE-He213)s100529901088-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Pham, Xuan-Yem verfasserin aut Lepton flavor changing in neutrinoless $\tau$ decays 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 1999 Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. Neutrino Mass Sharp Contrast Neutrino Oscillation Lepton Number Oscillation Experiment Enthalten in The European physical journal / C Springer-Verlag, 1998 8(1999), 3 vom: Mai, Seite 513-516 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:8 year:1999 number:3 month:05 pages:513-516 https://doi.org/10.1007/s100529901088 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4126 GBV_ILN_4277 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4319 AR 8 1999 3 05 513-516 |
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10.1007/s100529901088 doi (DE-627)OLC2069061752 (DE-He213)s100529901088-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Pham, Xuan-Yem verfasserin aut Lepton flavor changing in neutrinoless $\tau$ decays 1999 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag Berlin Heidelberg 1999 Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. Neutrino Mass Sharp Contrast Neutrino Oscillation Lepton Number Oscillation Experiment Enthalten in The European physical journal / C Springer-Verlag, 1998 8(1999), 3 vom: Mai, Seite 513-516 (DE-627)235469777 (DE-600)1397769-6 (DE-576)061879150 1434-6044 nnns volume:8 year:1999 number:3 month:05 pages:513-516 https://doi.org/10.1007/s100529901088 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4029 GBV_ILN_4082 GBV_ILN_4126 GBV_ILN_4277 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4319 AR 8 1999 3 05 513-516 |
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Enthalten in The European physical journal / C 8(1999), 3 vom: Mai, Seite 513-516 volume:8 year:1999 number:3 month:05 pages:513-516 |
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Lepton flavor changing in neutrinoless $\tau$ decays |
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Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. © Springer-Verlag Berlin Heidelberg 1999 |
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Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. © Springer-Verlag Berlin Heidelberg 1999 |
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Abstract. Neutrino oscillations, as recently reported by the Super-Kamiokande collaboration, imply that lepton numbers could be violated, and $\tau^{\pm} \to \mu^{\pm} +\ell^{+} +\ell^{-}, \tau^{\pm} \to \mu^{\pm} +\rho^0$ are some typical examples. We point out that in these neutrinoless modes, the GIM cancelation is much milder with only a logarithmic behavior $\log (m_j /m_k)$ where $m_{j, k}$ are the neutrino masses. This is in sharp contrast with the vanishingly small amplitude $\tau^{\pm}\to \mu^{\pm} + \gamma$ strongly suppressed by the quadratic power $(m_j^2-m_k^2)/ M_{\rm W}^2$. In comparison with the hopelessly small branching ratio B$(\tau^{\pm}\to \mu^{\pm} + \gamma) \approx 10^{-40}$, the B$(\tau^{\pm} \to \mu^{\pm} + \ell^{+} +\ell^{-})$ could be larger than $10^{-14}$. The latter mode, if measurable, could give one more constraint to the lepton mixing angle $\sin 2\theta_{jk}$ and the neutrino mass ratio $m_j/m_k$, and therefore is complementary to neutrino oscillation experiments. © Springer-Verlag Berlin Heidelberg 1999 |
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