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Title: Semileptonic B Meson Decays

Abstract

Semileptonic decays of B mesons play a critical role in the determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements V{sub cb} and V{sub ub}. These two quantities are fundamental parameters of the Standard Model and have to be determined experimentally. Over the past decade, the vast samples of B mesons recorded at the B factories at LEP at Cornell University, KEK at Tsukuba, and SLAC at Stanford University have allowed for detailed studies of semileptonic B decays. These decays proceed via first-order weak interactions; thus, they are expected to be free of non-Standard Model contributions and therefore are well suited for the extraction of the quark-mixing parameters. Differential decay rates are combined with theoretical calculations of hadronization effects, leading to a substantially improved knowledge of |V{sub cb}| and |V{sub ub}|. The results are used to constrain the parameters of the CKM matrix and to test the Standard Model predictions for CP-violating effects.

Authors:
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1032743
Report Number(s):
SLAC-REPRINT-2012-001
TRN: US1200539
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Annual Review of Nuclear and Particle Science
Additional Journal Information:
Journal Volume: 61
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B MESONS; KOBAYASHI-MASKAWA MATRIX; MATRIX ELEMENTS; SEMILEPTONIC DECAY; STANDARD MODEL; STANFORD LINEAR ACCELERATOR CENTER; WEAK INTERACTIONS; Theory-HEP,HEPEX, HEPTH

Citation Formats

Luth, Vera G, and /SLAC. Semileptonic B Meson Decays. United States: N. p., 2012. Web.
Luth, Vera G, & /SLAC. Semileptonic B Meson Decays. United States.
Luth, Vera G, and /SLAC. 2012. "Semileptonic B Meson Decays". United States.
@article{osti_1032743,
title = {Semileptonic B Meson Decays},
author = {Luth, Vera G and /SLAC},
abstractNote = {Semileptonic decays of B mesons play a critical role in the determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements V{sub cb} and V{sub ub}. These two quantities are fundamental parameters of the Standard Model and have to be determined experimentally. Over the past decade, the vast samples of B mesons recorded at the B factories at LEP at Cornell University, KEK at Tsukuba, and SLAC at Stanford University have allowed for detailed studies of semileptonic B decays. These decays proceed via first-order weak interactions; thus, they are expected to be free of non-Standard Model contributions and therefore are well suited for the extraction of the quark-mixing parameters. Differential decay rates are combined with theoretical calculations of hadronization effects, leading to a substantially improved knowledge of |V{sub cb}| and |V{sub ub}|. The results are used to constrain the parameters of the CKM matrix and to test the Standard Model predictions for CP-violating effects.},
doi = {},
url = {https://www.osti.gov/biblio/1032743}, journal = {Annual Review of Nuclear and Particle Science},
number = ,
volume = 61,
place = {United States},
year = {Tue Jan 03 00:00:00 EST 2012},
month = {Tue Jan 03 00:00:00 EST 2012}
}