Search for W Boson Decays to Three Charged Pions

CMS Collaboration

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

For the first time, a search for the rare decay of the W boson to three charged pions has been performed. Proton-proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 77.3 fb-1, have been analyzed. No significant excess is observed above the background expectation. An upper limit of 1.01×10-6 is set at 95% confidence level on the branching fraction of the W boson to three charged pions. This provides a strong motivation for theoretical calculations of this branching fraction.

Original languageEnglish
Article number151802
JournalPhysical review letters
Volume122
Issue number15
DOIs
Publication statusPublished - 2019 Apr 18

Bibliographical note

Publisher Copyright:
© 2019 CERN. for the CMS Collaboration. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.

ASJC Scopus subject areas

  • General Physics and Astronomy

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