منابع مشابه
B Lifetimes and Mixing
The Tevatron experiments, CDF and D0, have produced a wealth of new B-physics results since the start of Run II in 2001. We’ve observed new B-hadrons, seen new effects, and increased many-fold the precision with which we know the properties of b-quark systems. In these proceedings, we will discuss two of the most fruitful areas in the Tevatron B-physics program: lifetimes and mixing. We’ll exam...
متن کاملPreliminary Measurements of B “ and B + Lifetimes at SLD 1 The SLD
The Efetimes of B " and B+ mesons have been measured using a sample of 150,000 hadronic 20's co~ected by the SLD experiment at the SLC between 1993 and 1995. Two analyses are presented. The first identifies semileptonic decays of B mesons with high (p, pt) leptons and reconstructs the B meson decay length and charge by vertexing the lepton with a partially reconstructed D meson. 428 (549) neutr...
متن کاملB s Mixing at SLD
We set a preliminary 95% C.L. exclusion on the oscillation frequency of B s B 0 s mixing using a sample of 400,000 hadronic Z decays collected by the SLD experiment at the SLC during the 1996-98 run. Three analyses are presented in this paper. The rst analysis partially reconstructs the B s by combining a fully reconstructed Ds with the remaining charged B decay tracks. The second analysis sele...
متن کاملB-Meson Mixing and Lifetimes
Bd and Bs meson systems play a fundamental role to test and improve our understanding of Standard Model flavor dynamics. The mixing parameters ∆md,s represent important constraints in the unitarity triangle analysis. Their theoretical estimates require non-perturbative calculations of B-meson decay constants and B-parameters; accurate results, recently obtained from the lattice, are reviewed. O...
متن کاملB Mixing and Lifetimes at the Tevatron
The Tevatron collider at Fermilab, operating at √ s = 1.96 TeV, has a huge bb̄ production cross section which is several orders of magnitude larger than the production rate at ee colliders running on the Υ(4S) resonance. In addition, on the Υ(4S) only B and B d are produced, while higher mass b-hadrons such as B s , Bc, b-baryons, B , and p-wave B mesons are currently produced only at the Tevatr...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1996
ISSN: 0920-5632
DOI: 10.1016/0920-5632(96)00368-4