Towards a global fit to extract the B->Xs gamma decay rate and Vub

The total B->Xs gamma decay rate and the CKM-matrix element Vub play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requir...

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Detalles Bibliográficos
Autores principales: Bernlochner, Florian U., Lacker, Heiko, Ligeti, Zoltan, Stewart, Iain W., Tackmann, Frank J., Tackmann, Kerstin
Lenguaje:eng
Publicado: 2010
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.22323/1.120.0229
http://cds.cern.ch/record/1310260
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author Bernlochner, Florian U.
Lacker, Heiko
Ligeti, Zoltan
Stewart, Iain W.
Tackmann, Frank J.
Tackmann, Kerstin
author_facet Bernlochner, Florian U.
Lacker, Heiko
Ligeti, Zoltan
Stewart, Iain W.
Tackmann, Frank J.
Tackmann, Kerstin
author_sort Bernlochner, Florian U.
collection CERN
description The total B->Xs gamma decay rate and the CKM-matrix element Vub play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requires the precise knowledge of the parton distribution function of the b quark in the B meson, called the shape function. We implement a new model-independent framework for the shape function with reliable uncertainties based on an expansion in a suitable set of basis functions. We present the current status of a global fit to BaBar and Belle data to extract the shape function and the B->Xs gamma decay rate.
id cern-1310260
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-13102602019-09-30T06:29:59Zdoi:10.22323/1.120.0229http://cds.cern.ch/record/1310260engBernlochner, Florian U.Lacker, HeikoLigeti, ZoltanStewart, Iain W.Tackmann, Frank J.Tackmann, KerstinTowards a global fit to extract the B->Xs gamma decay rate and VubParticle Physics - PhenomenologyThe total B->Xs gamma decay rate and the CKM-matrix element Vub play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requires the precise knowledge of the parton distribution function of the b quark in the B meson, called the shape function. We implement a new model-independent framework for the shape function with reliable uncertainties based on an expansion in a suitable set of basis functions. We present the current status of a global fit to BaBar and Belle data to extract the shape function and the B->Xs gamma decay rate.The total B->Xs gamma decay rate and the CKM-matrix element Vub play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requires the precise knowledge of the parton distribution function of the b quark in the B meson, called the shape function. We implement a new model-independent framework for the shape function with reliable uncertainties based on an expansion in a suitable set of basis functions. We present the current status of a global fit to BaBar and Belle data to extract the shape function and the B->Xs gamma decay rate.arXiv:1011.5838oai:cds.cern.ch:13102602010-11-29
spellingShingle Particle Physics - Phenomenology
Bernlochner, Florian U.
Lacker, Heiko
Ligeti, Zoltan
Stewart, Iain W.
Tackmann, Frank J.
Tackmann, Kerstin
Towards a global fit to extract the B->Xs gamma decay rate and Vub
title Towards a global fit to extract the B->Xs gamma decay rate and Vub
title_full Towards a global fit to extract the B->Xs gamma decay rate and Vub
title_fullStr Towards a global fit to extract the B->Xs gamma decay rate and Vub
title_full_unstemmed Towards a global fit to extract the B->Xs gamma decay rate and Vub
title_short Towards a global fit to extract the B->Xs gamma decay rate and Vub
title_sort towards a global fit to extract the b->xs gamma decay rate and vub
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.22323/1.120.0229
http://cds.cern.ch/record/1310260
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