Measurement of Inclusive Production of Charmonium States in B Meson Decays PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Measurement of Inclusive Production of Charmonium States in B Meson Decays PDF full book. Access full book title Measurement of Inclusive Production of Charmonium States in B Meson Decays by . Download full books in PDF and EPUB format.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The authors reconstruct the charmonium mesons J/[psi], [psi](2S) and [chi]{sub c} using a sample of 8.46 x 106 B{bar B} events collected by the BABAR detector operating at ee− center of mass energies near the [Lambda](4S) resonance. by measuring rates relative to the branching fraction of the J/[psi], they obtain preliminary inclusive B branching fractions of (0.25 ± 0.02 ± 0.02)% to the [psi](2S) and (0.39 ± 0.04 ± 0.04)% to the [chi]{sub c1}, and set a 90% confidence level limit of 0.24% on decays through the [chi]{sub c2}.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The authors reconstruct the charmonium mesons J/[psi], [psi](2S) and [chi]{sub c} using a sample of 8.46 x 106 B{bar B} events collected by the BABAR detector operating at ee− center of mass energies near the [Lambda](4S) resonance. by measuring rates relative to the branching fraction of the J/[psi], they obtain preliminary inclusive B branching fractions of (0.25 ± 0.02 ± 0.02)% to the [psi](2S) and (0.39 ± 0.04 ± 0.04)% to the [chi]{sub c1}, and set a 90% confidence level limit of 0.24% on decays through the [chi]{sub c2}.
Author: Publisher: ISBN: Category : Languages : en Pages : 17
Book Description
The inclusive production of charmonium mesons in B meson decay has been studied in a 20.3 fb−1 data set collected by the BABAR experiment operating at the [Upsilon](4S) resonance. Branching fractions have been measured for the inclusive production of the charmonium mesons J/[psi], [psi](2S), [chi]{sub c1}, and [chi]{sub c2}. The branching fractions are also presented as a function of the center-of-mass momentum of the mesons and of the helicity of the J/[psi].
Author: Andrew Chisholm Publisher: Springer ISBN: 3319231200 Category : Science Languages : en Pages : 193
Book Description
This thesis, which won one of the six 2015 ATLAS Thesis Awards, concerns the study of the charmonium and bottomonium bound heavy quark bound states. The first section of the thesis describes the observation of a candidate for the chi_b(3P) bottomonium states. This represented the first observation of a new particle at the LHC and its existence was subsequently confirmed by D0 and LHCb experiments. The second part of the thesis presents measurements of the prompt and non-prompt production of the chi_c1 and chi_c2 charmonium states in proton-proton collisions. These measurements are compared to several theoretical predictions and can be used to inform the development of theoretical models of quarkonium production.
Author: Sheldon Stone Publisher: World Scientific ISBN: 9789810218362 Category : Science Languages : en Pages : 676
Book Description
This 2nd edition is an extensive update of "B Decays?. The revisions are necessary because of the extensive amount of new data and new theoretical ideas. This book reviews what is known about b-quark decays and also looks at what can be learned in the future.The importance of this research area is increasing, as evidenced by the approval of the luminosity upgrade for CESR and the asymmetric B factories at SLAC and KEK, and the possibility of experiments at hadron colliders.The key experimental observations made thus far, measurement of the lifetimes of the different B species, B0-B0 mixing, the discovery of ?Penguin? mediated decays, and the extraction of the CKM matrix elements Vub and Vcb from semileptonic decays, as well as more mundane results, are described in great detail by the experimentalists who have been closely involved with making the measurements. Theoretical progress in understanding b-quark decays using HQET and lattice gauge techniques are described by theorists who have developed and used these techniques.Synthesizing the experimental and theoretical information, several articles discuss the implications for the ?Standard Model? and how further tests can be done using measurements of CP violation in the B system.
Author: Società italiana di fisica Publisher: IOS Press ISBN: 1614992223 Category : Science Languages : en Pages : 671
Book Description
The lectures collected in this book present a comprehensive review of the current knowledge of heavy-quark physics, from the points of view of both theory and experiment. Heavy Flavour Physics has accomplished enormous progress during the last few years: the last heavy quark has been discovered and the quality of the collected data on the other relatively lighter quarks has dramatically improved. On the theory side, noticeable progress has been reported on new calculations of decay rates based on various techniques, such as QCD sum rules, heavy-quark mass expansion and lattice QCD. The theory of heavy quark production is constantly improving and awaiting new results. Nevertheless there are strong reasons to believe that the Standard Model of High Energy Physics is incomplete. It exhibits very peculiar patterns for which it offers no explanation. The basic constituents of matter are arranged into three seemingly identical generations or families of quarks and leptons, differing merely in their masses. The pattern in the fermion masses, why they are families and why there are three of them is not yet understood. Furthermore it is known that at least within the standard model there is an intimate connection between the replication of families and the gateway of CP violation, in addition, the latter phenomenon is a crucial ingredient in explaining why our universe is made up almost exclusively of matter rather than being more or less matter-antimatter symmetric. How and to what extent can Heavy Flavour Physics impact on these questions? Does it offer novel windows onto New Physics beyond the Standard Model in general and onto new symmetries, such as Supersymmetry in particular? These questions constitute the central theme of this book. The material treated in this publication may serve as reference for the segment of the high-energy community actively engaged in heavy-quark physics.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
We report branching fraction measurements for exclusive decays of charged and neutral B mesons into two-body final states containing a charmonium meson. We use a sample of 22.72[+-] 0.36 million B[bar B] events collected between October 1999 and October 2000 with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center. The charmonium mesons considered here are J/[psi], [psi](2S), [chi][sub c1], and the light meson in the decay is either a K, K*, or[pi][sup 0].
Author: 
Author: 
Author: 
Author: Andrew Chisholm
Author: Stephen Eric Schrenk
Author: ARGUS Collaboration
Author: Sheldon Stone
Author: 
Author: Chong-sa Lim
Author: Società italiana di fisica
Author: