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| Search for W boson decays to three charged pions | |||||||||
| Autori | A. M. Sirunyan, S. Lo Meo, et al. Anno 2019 | ||||||||
| Tipologia | Articolo Rivista internazionale con referaggio | ||||||||
| 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. | ||||||||
| Referenza_Bibliografica | Phys. Rev. Lett. 122 (2019) 151802 https://dx.doi.org/10.1103/PhysRevLett.122.151802 |
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| Unita di Ricerca | RADEC | ||||||||
| LastUpdate | 07/01/2022 | ||||||||
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