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Status of SIMBA

The goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix el...

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Autores principales: Bernlochner, Florian U., Lacker, Heiko, Ligeti, Zoltan, Stewart, Iain W., Tackmann, Frank J., Tackmann, Kerstin
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1323084
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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 goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with the required input parameters, most importantly the b-quark mass and the b-quark distribution function in the B-meson, called the shape function. This strategy is analogous to the determination of |Vcb| from global fits to inclusive B -> X_c l nu decays. In this talk, we present preliminary results for the shape function and |C_7^incl Vtb Vts^*|, which parametrizes the total B -> X_s gamma rate, from a global fit to the available B -> X_s gamma measurements from BABAR and Belle.
id cern-1323084
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13230842023-03-14T20:30:44Zhttp://cds.cern.ch/record/1323084engBernlochner, Florian U.Lacker, HeikoLigeti, ZoltanStewart, Iain W.Tackmann, Frank J.Tackmann, KerstinStatus of SIMBAParticle Physics - PhenomenologyThe goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with the required input parameters, most importantly the b-quark mass and the b-quark distribution function in the B-meson, called the shape function. This strategy is analogous to the determination of |Vcb| from global fits to inclusive B -> X_c l nu decays. In this talk, we present preliminary results for the shape function and |C_7^incl Vtb Vts^*|, which parametrizes the total B -> X_s gamma rate, from a global fit to the available B -> X_s gamma measurements from BABAR and Belle.arXiv:1101.3310oai:cds.cern.ch:13230842011-01-19
spellingShingle Particle Physics - Phenomenology
Bernlochner, Florian U.
Lacker, Heiko
Ligeti, Zoltan
Stewart, Iain W.
Tackmann, Frank J.
Tackmann, Kerstin
Status of SIMBA
title Status of SIMBA
title_full Status of SIMBA
title_fullStr Status of SIMBA
title_full_unstemmed Status of SIMBA
title_short Status of SIMBA
title_sort status of simba
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1323084
work_keys_str_mv AT bernlochnerflorianu statusofsimba
AT lackerheiko statusofsimba
AT ligetizoltan statusofsimba
AT stewartiainw statusofsimba
AT tackmannfrankj statusofsimba
AT tackmannkerstin statusofsimba