Inclusive B decays — Spectra, moments and CKM matrix elementsI present improved measurements of | V cb| and | V ub| from four recent CLEO analyses.doi:10.1016/S0920-5632(03)90612-8Daniel Cronin-HennessyElsevier B.V.Nuclear Physics B (Proceedings Supplements)
matrix elementsquarkssemileptonic decayvectorsWe report studies of semileptonic decays, B --> X_c l nu, based on a sample of 88 million BB events recorded with the BABAR detector. We have measured four moments of the electron energy distribution and four moments of the hadronic mass ...
The nonlocal hadronic matrix elements are calculated at spacelike q2, using OPE, QCD factor- ization [14] and LCSRs, and are then matched to their values at timelike q2 via hadronic dispersion relations. The results of this calculation are reliable at large hadronic recoil, below the ...
Measurement of the Cabibbo-Kobayashi-Maskawa matrix element V(ub) with B--rhoenu decays 热度: 2010-Reflectarray antenna consisting of circular disk elements:Design and measurement 热度: a r X i v : h e p - e x / 0 6 0 7 0
Keywords: CKM matrix elements, Form factors, Heavy-light transitions, Light-cone sum rule, Correction functions 烟台大学硕士学位论文 III 目录 摘要... I ABSTRACT ... II 1 绪论 ...
The computed values ΓhadW=1428.65±22.40par±0.04thMeV and BhadW=0.682±0.011par (using the experimental CKM matrix elements), and ΓhadW=1411.40±0.96par±0.04thMeV and BhadW=0.6742±0.0002th±0.0001par (assuming CKM matrix unitarity), are in very good agreement with the corresponding ...
Generically, they originate from two sources: (1) uncertainties of parameters used for the calculation, such as quark masses or other CKM matrix elements; (2) intrinsic uncertainties introduced by higher order corrections unaccounted. Beyond the leading order relation, higher order corrections of Rcb...
Finally constraints on SUSY parameters, in the framework of a given model, obtained from a precise measurement of the CKM matrix elements are analyzed. Full-Text Contact Us service@oalib.com QQ:3279437679 WhatsApp +8615387084133
A complication to this approach is the presence of loop level penguin diagrams leading to the same final states (Fig. 2, right), which intro- duce different CKM matrix elements. While in the absence of penguin contribution, the measurement of time dependent CP asym- metries in neutral B ...
A parametrization of the CKM mixing matrix in terms of four quark mass ratios and one CP violating phase in very good agreement with the absolute value of the experimentally determined values of the CKM matrix elements is obtained. (Author)...