Semileptonic B Meson Decays
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
Semileptonic decays of B mesons play a critical role in the determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements Vcb and Vub. 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 |Vcb| and |Vub|. The results are used to constrain the parameters of the CKM matrix and to test the Standard Model predictions for CP -violating effects.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1443130
- Report Number(s):
- SLAC-PUB-14435
- Journal Information:
- Annual Review of Nuclear and Particle Science, Vol. 61, Issue 1; ISSN 0163-8998
- Publisher:
- Annual ReviewsCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Overview of the Cabibbo–Kobayashi–Maskawa matrix†
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journal | November 2012 |
Angular distribution as an effective probe of new physics in semihadronic three-body meson decays
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journal | July 2019 |
| Angular distribution as an effective probe of new physics in semi-hadronic three-body meson decays | text | January 2018 |
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