• Editors' Suggestion
  • Open Access

Measurement of the Bs0μ+μ Branching Fraction and Search for B0μ+μ with the CMS Experiment

S. Chatrchyan et al. (CMS Collaboration)
Phys. Rev. Lett. 111, 101804 – Published 5 September 2013
PDFHTMLExport Citation

Abstract

Results are presented from a search for the rare decays Bs0μ+μ and B0μ+μ in pp collisions at s=7 and 8 TeV, with data samples corresponding to integrated luminosities of 5 and 20fb1, respectively, collected by the CMS experiment at the LHC. An unbinned maximum-likelihood fit to the dimuon invariant mass distribution gives a branching fraction B(Bs0μ+μ)=(3.00.9+1.0)×109, where the uncertainty includes both statistical and systematic contributions. An excess of Bs0μ+μ events with respect to background is observed with a significance of 4.3 standard deviations. For the decay B0μ+μ an upper limit of B(B0μ+μ)<1.1×109 at the 95% confidence level is determined. Both results are in agreement with the expectations from the standard model.

  • Figure
  • Figure
  • Figure
  • Received 18 July 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.101804

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.

© 2013 CERN, for the CMS Collaboration

Authors & Affiliations

Click to Expand

See Also

Article Text

Click to Expand

Supplemental Material

Click to Expand

References

Click to Expand
Issue

Vol. 111, Iss. 10 — 6 September 2013

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

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
×