CERN Accelerating science

Article
Report number arXiv:1210.2631 ; CERN-PH-EP-2012-287 ; LHCB-PAPER-2012-022 ; CERN-PH-EP2012-287 ; CERN-PH-EP-2012-287 ; LHCB-PAPER-2012-022
Title Evidence for the decay B0J/ψωB0J/ψω and measurement of the relative branching fractions of B0sB0s meson decays to J/ψηJ/ψη and J/ψηJ/ψη
Author(s) LHCb Collaboration  显示全部 622 名作者
Publication 2013-02-21
Imprint 16 Oct 2012
Number of pages 23
Note Comments: 23 pages, 7 figures
23 pages, 7 figures
In: Nucl. Phys. B 867 (2013) 547-566
DOI 10.1016/j.nuclphysb.2012.10.021
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; B physics ; branching fraction ; experimental results
Abstract First evidence of the B0J/ψωB0J/ψω decay is found and the B0sJ/ψηB0sJ/ψη and B0sJ/ψηB0sJ/ψη decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb1fb1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of s=7s=7 TeV. The branching fractions of these decays are measured relative to that of the B0J/ψρ0B0J/ψρ0 decay: %The following ratios are measured B(B0J/ψω)B(B0J/ψρ0)$=$0.89±0.19(stat)+0.070.13(syst),B(B0sJ/ψη)B(B0J/ψρ0)$=$14.0±1.2(stat)+1.11.5(syst)+1.11.0(fdfs),B(B0sJ/ψη)B(B0J/ψρ0)$=$12.7±1.1(stat)+0.51.3(syst)+1.00.9(fdfs), where the last uncertainty is due to the knowledge of fd/fs, the ratio of b-quark hadronization factors that accounts for the different production rate of B0 and B0s mesons. The ratio of the branching fractions of B0sJ/ψη and B0sJ/ψη decays is measured to be B(B0sJ/ψη)B(B0sJ/ψη)=0.90±0.09(stat)+0.060.02(syst).
Copyright/License preprint: © 2012-2024 CERN (License: CC-BY-3.0)
publication: © 2013-2024 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: u.egede@imperial.ac.uk


 记录创建於2012-10-16,最後更新在2024-08-17


Elsevier Open Access article:
Download fulltextPDF
(additional files)
External link:
Download fulltextPreprint
  • Send to ScienceWise.info