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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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Lenguaje: | eng |
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1999
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Acceso en línea: | http://cds.cern.ch/record/405573 |
_version_ | 1780894345942007808 |
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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 |
record_format | invenio |
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 |