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Gamma Determination

Various strategies for extracting or constraining the weak phase gamma with controlled theoretical uncertainties are reviewed. Measurements of the rates for the hadronic decays B^+- -> pi K provide largely model-independent information on gamma. Hadronic uncertainties enter only at the level of n...

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Detalles Bibliográficos
Autor principal: Neubert, M
Lenguaje:eng
Publicado: 1999
Materias:
Acceso en línea:http://cds.cern.ch/record/405573
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author Neubert, M
author_facet Neubert, M
author_sort Neubert, M
collection CERN
description Various strategies for extracting or constraining the weak phase gamma with controlled theoretical uncertainties are reviewed. Measurements of the rates for the hadronic decays B^+- -> pi K provide largely model-independent information on gamma. Hadronic uncertainties enter only at the level of nonfactorizable contributions to the decay amplitudes that are power-suppressed in Lambda/m_b and, simultaneously, violate SU(3) flavor symmetry or are doubly Cabibbo suppressed. In addition, these decays have a rich potential for probing physics beyond the Standard Model. Alternative proposals for learning gamma are also discussed briefly.
id cern-405573
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-4055732019-09-30T06:29:59Zhttp://cds.cern.ch/record/405573engNeubert, MGamma DeterminationParticle Physics - PhenomenologyVarious strategies for extracting or constraining the weak phase gamma with controlled theoretical uncertainties are reviewed. Measurements of the rates for the hadronic decays B^+- -> pi K provide largely model-independent information on gamma. Hadronic uncertainties enter only at the level of nonfactorizable contributions to the decay amplitudes that are power-suppressed in Lambda/m_b and, simultaneously, violate SU(3) flavor symmetry or are doubly Cabibbo suppressed. In addition, these decays have a rich potential for probing physics beyond the Standard Model. Alternative proposals for learning gamma are also discussed briefly.hep-ph/9910530CLNS-1643oai:cds.cern.ch:4055731999-10-29
spellingShingle Particle Physics - Phenomenology
Neubert, M
Gamma Determination
title Gamma Determination
title_full Gamma Determination
title_fullStr Gamma Determination
title_full_unstemmed Gamma Determination
title_short Gamma Determination
title_sort gamma determination
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/405573
work_keys_str_mv AT neubertm gammadetermination