Measurement of Inclusive B Semileptonic Branching Fractions at the Z Resonance
Author : Aurel Trandafir
Publisher :
Page : 496 pages
File Size : 23,54 MB
Release : 2000
Category : Branching processes
ISBN :
Author : Aurel Trandafir
Publisher :
Page : 496 pages
File Size : 23,54 MB
Release : 2000
Category : Branching processes
ISBN :
Author :
Publisher :
Page : pages
File Size : 47,26 MB
Release : 2000
Category :
ISBN :
This document presents a new measurement of inclusive b semileptonic branching fractions B(b-->l) and B(b-->c-->l). The b-->l and b-->c-->l are separated by a means that uses correlation between the final state lepton charge and that of its parent b quark as a constraint. Monte Carlo counts of electrons and muons are calibrated to the data using a newly developed technique based on pairs of mutually independent tests for each particle hypothesis separately. The data sample consists of about 550,000 hadronic Z decays collected at the SLD between 1993 and 1998. Upon analysis of electron and muon counts in 61602 hadronic event hemispheres tagged as containing either a b or a b-bar, the author reports: B(b-->e) = 0.0949"0.0049"0.0050, B(b-->mu) = 0.1066"0.0038"0.0049, combined B(b-->l) = 0.1015"0.0030"0.0035; and B(b-->c-->e) = 0.0811"0.0053"0.0030, B( -->b-->c-->mu) = 0.0717"0.0045"0.0024, combined B(b-->c-->l) = 0.0756"0.0034"0.0019.
Author : Ruoyu Wang
Publisher :
Page : 312 pages
File Size : 47,70 MB
Release : 1994
Category :
ISBN :
Author : K Huitu
Publisher : CRC Press
Page : 1112 pages
File Size : 38,13 MB
Release : 2000-01-01
Category : Science
ISBN : 9780750306614
High Energy Physics 99 contains the 18 invited plenary presentations and 250 contributions to parallel sessions presented at the International Europhysics Conference on High Energy Physics. The book provides a comprehensive survey of the latest developments in high energy physics. Topics discussed include hard high energy, structure functions, soft interactions, heavy flavor, the standard model, hadron spectroscopy, neutrino masses, particle astrophysics, field theory, and detector development.
Author : Seamus Hegarty
Publisher : World Scientific
Page : 1432 pages
File Size : 48,43 MB
Release : 1992-05-26
Category :
ISBN : 9814555533
The proceedings of the Joint International Lepton-Photon Symposium and Europhysics Conference on High Energy Physics cover the full range of frontline research in high energy particle physics. The latest results, both theoretical and experimental, are presented and reviews of recent developments in instrumentation and accelerator techniques are included.Volume one summarises the highly specialised topics presented in the parallel sessions while the second volume contains the review talks given by the invited speakers.
Author : Alexei Volk
Publisher :
Page : 127 pages
File Size : 11,26 MB
Release : 2009
Category :
ISBN :
Author : Daniel Edward Azzopardi
Publisher :
Page : 183 pages
File Size : 35,55 MB
Release : 2003
Category :
ISBN :
Author : Dale Steven Koetke
Publisher :
Page : 606 pages
File Size : 44,79 MB
Release : 1992
Category : Hadron interactions
ISBN :
Author : M. Campbell
Publisher : World Scientific
Page : 398 pages
File Size : 23,77 MB
Release : 2000
Category : Science
ISBN : 9789810243548
The XIX Physics in Collision conference reviewed experimental results in electroweak, quantum chromodynamics, neutrino, bottom and rare kaon physics, and updated recent developments in the area of gamma ray bursts as well as the issue of the cosmological constant and dark matter.The conference opened with reports on electroweak physics. A decade of precision experiments in laboratories around the world failed to uncover any significant deviations from standard model predictions. Precise W boson and top quark mass measurements suggest a low mass Higgs boson in the standard model, possibly within the reach of the LEP II and the upgraded Tevatron colliders. These presentations were followed by a summary of the latest results on searches for Higgs and supersymmetry.There were three reports on neutrino physics: atmospheric, solar and reactor/accelerator based neutrino experiments and results. Impressive Super-K results strongly suggest ????? oscillation, a scenario confirmed by less precise Soudan2 and MACRO data.The latest results on strange and heavy quark physics were summarized. High statistics from CLEO, LEP I and Tevatron have enabled experimenters to study many rare charm and bottom quark decays for the first time. Among many other interesting results presented, the first measurements of sin 2? by CDF and î?/î by KTeV provide a preview of expected developments in the near future.
Author : Zygmunt Ajduk
Publisher : World Scientific
Page : 1878 pages
File Size : 21,21 MB
Release : 1997-04-11
Category :
ISBN : 9814547107
The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.