Journal article
Search for W Boson Decays to Three Charged Pions
Physical review letters, Vol.122, 151802
04/18/2019
DOI: 10.1103/PhysRevLett.122.151802
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.
Details
- Title: Subtitle
- Search for W Boson Decays to Three Charged Pions
- Creators
- CMS CollaborationA. M Sirunyan - A. Alikhanyan National LaboratoryA Tumasyan - A. Alikhanyan National LaboratoryW Adam - Austrian Academy of SciencesF AmbrogiE. Asilar
- Contributors
- Y Onel (Contributor) - University of Iowa, Physics and AstronomyJ Nachtman (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.122, 151802
- DOI
- 10.1103/PhysRevLett.122.151802
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 04/18/2019
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984439351202771
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