• Rapid Communication
  • Open Access

Measurement of the Bs0J/ψK¯*0 branching fraction and angular amplitudes

R. Aaij et al. (LHCb Collaboration)
Phys. Rev. D 86, 071102(R) – Published 8 October 2012

Abstract

A sample of 114±11 Bs0J/ψKπ+ signal events obtained with 0.37fb1 of pp collisions at s=7TeV collected by the LHCb experiment is used to measure the branching fraction and polarization amplitudes of the Bs0J/ψK¯*0 decay, with K¯*0Kπ+. The Kπ+ mass spectrum of the candidates in the Bs0 peak is dominated by the K¯*0 contribution. Subtracting the nonresonant Kπ+ component, the branching fraction of Bs0J/ψK¯*0 is (4.40.4+0.5±0.8)×105, where the first uncertainty is statistical and the second is systematic. A fit to the angular distribution of the decay products yields the K*0 polarization fractions fL=0.50±0.08±0.02 and f=0.190.08+0.10±0.02.

  • Figure
  • Figure
  • Figure
  • Received 3 August 2012

DOI:https://doi.org/10.1103/PhysRevD.86.071102

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2012 CERN, for the LHCb Collaboration

Authors & Affiliations

Click to Expand

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 86, Iss. 7 — 1 October 2012

Reuse & Permissions
Access Options
CHORUS

Article part of CHORUS

Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 3.0 License. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×