Bilki, BurakGürpınar Güler, Emine., ve diğer.2019-12-302019-12-302019Phys. Rev. Lett. 122, 151802 (2019)0031-90071079-7114https://doi.org/10.1103/PhysRevLett.122.151802For 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.enParticle decaysW & Z bosonsHadron collidersArticle10.1103/PhysRevLett.122.1518022-s2.0-8506555680631050519Q1WOS:000465182200002Q1