Measurement of the Moments of the Hadronic Invariant Mass Distribution in Semileptonic Beta Decays

Acosta, D. ; TITLE=Measuremen, The CDF Collaboration

Lawrence Berkeley National Laboratory

关键词: B Mesons;    Fermilab Tevatron;    43 Particle Accelerators;    Quarks;    Matrix Elements;   

DOI  :  10.2172/842931
RP-ID  :  LBNL--58145
RP-ID  :  AC03-76SF00098
RP-ID  :  842931

美国|英语

来源: UNT Digital Library

【 摘 要 】

Using 180 pb{sup -1} of data collected with the CDF II detector at the Tevatron, we measure the first two moments of the hadronic invariant mass-squared distribution in charmed semileptonic B decays. From these we determine the non-perturbative Heavy Quark Effective Theory parameters {Lambda} and {lambda}{sub 1} used to relate the B meson semileptonic branching ratio to the CKM matrix element |V{sub cb}|.