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}
}