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Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays
We extract the heavy quark masses and non-perturbative parameters from the Delphi preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rel...
| Autores principales: | , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0370-2693(03)00042-X http://cds.cern.ch/record/588257 |
| _version_ | 1780899597406699520 |
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| author | Battaglia, Marco Calvi, Marta Gambino, Paolo Oyanguren, Arantza Roudeau, Patrick Salmi, Laura Salt, Jose Stocchi, Achille Uraltsev, Nikolai |
| author_facet | Battaglia, Marco Calvi, Marta Gambino, Paolo Oyanguren, Arantza Roudeau, Patrick Salmi, Laura Salt, Jose Stocchi, Achille Uraltsev, Nikolai |
| author_sort | Battaglia, Marco |
| collection | CERN |
| description | We extract the heavy quark masses and non-perturbative parameters from the Delphi preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rely on a 1/mc expansion and makes use of running quark masses. The data are consistent and the level of accuracy of the experimental inputs largely determines the present sensitivity. The results allow to improve on the uncertainty in the extraction of Vcb. |
| id | cern-588257 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5882572021-10-06T14:00:06Zdoi:10.1016/S0370-2693(03)00042-Xhttp://cds.cern.ch/record/588257engBattaglia, MarcoCalvi, MartaGambino, PaoloOyanguren, ArantzaRoudeau, PatrickSalmi, LauraSalt, JoseStocchi, AchilleUraltsev, NikolaiHeavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ DecaysParticle Physics - PhenomenologyWe extract the heavy quark masses and non-perturbative parameters from the Delphi preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rely on a 1/mc expansion and makes use of running quark masses. The data are consistent and the level of accuracy of the experimental inputs largely determines the present sensitivity. The results allow to improve on the uncertainty in the extraction of Vcb.We extract the heavy quark masses and non-perturbative parameters from the Delphi preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rely on a 1/mc expansion and makes use of running quark masses. The data are consistent and the level of accuracy of the experimental inputs largely determines the present sensitivity. The results allow to improve on the uncertainty in the extraction of Vcb.We extract the heavy quark masses and non-perturbative parameters from the Delphi preliminary measurements of the first three moments of the charged lepton energy and hadronic mass distributions in semileptonic B decays, using a multi-parameter fit. We adopt two formalisms, one of which does not rely on a 1/ m c expansion and makes use of running quark masses. The data are consistent and the level of accuracy of the experimental inputs largely determines the present sensitivity. The results allow to improve on the uncertainty in the extraction of | V cb |.hep-ph/0210319CERN-TH-2002-290CKM-2003-WG102CERN-TH-2002-290LAL-2002-99oai:cds.cern.ch:5882572002-10-23 |
| spellingShingle | Particle Physics - Phenomenology Battaglia, Marco Calvi, Marta Gambino, Paolo Oyanguren, Arantza Roudeau, Patrick Salmi, Laura Salt, Jose Stocchi, Achille Uraltsev, Nikolai Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays |
| title | Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays |
| title_full | Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays |
| title_fullStr | Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays |
| title_full_unstemmed | Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays |
| title_short | Heavy Quark Parameters and |$V_{cb}$| Spectral Moments in Semileptonic $B$ Decays |
| title_sort | heavy quark parameters and |$v_{cb}$| spectral moments in semileptonic $b$ decays |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1016/S0370-2693(03)00042-X http://cds.cern.ch/record/588257 |
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