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Title: | Search for W Boson Decays to Three Charged Pions |
Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. RASTOGI, A. SHARMA, SEEMA et al. Dept. of Physics |
Keywords: | Pair Production TOC-MAY-2019 2019 |
Issue Date: | Apr-2019 |
Publisher: | American Physical Society |
Citation: | Physical Review Letters, 122(15). |
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. |
URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3076 https://doi.org/10.1103/PhysRevLett.122.151802 |
ISSN: | 0031-9007 1079-7114 |
Appears in Collections: | JOURNAL ARTICLES |
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