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| 題名: | Search for lepton flavour violating decays of the Higgs boson to eτ and eμ in proton–proton collisions at s=8 TeV |
| 作者: | 余欣珊;Sirunyan, A.M.;Hartl, C.;Jeitler, M.;Knutsson, A.;Karapostoli, G.;Bruno, G.;Giammanco, A.;Mertens, A.;Pin, A.;Santoro, A.;Bernardes, C.A.;Jiang, C.H.;Tao, J.;Tuominen, E.;Jarry, P.;Antropov, I.;Ortona, G.;Agram, J.-L.;Buttignol, M.;Geisler, M.;Garay Garcia, J.;Ntomari, E.;Pitzl, D.;Kovalchuk, N.;Haitz, D.;Bansal, S.;Kalsi, A.K.;Garg, R.B.;Cuffiani, M.;Giacomelli, P.;Grandi, C.;Marcellini, S.;Tosi, N.;Gelli, S.;Bellan, R.;La Licata, C.;Go, Y.;Kim, Y.;Yoo, H.D.;Lee, J.S.H.;Ahmed, I.;Kazana, M.;Lanev, A.;Sulimov, V.;Gavrilov, V.;Mesyats, G.;Belyaev, A.;Bloch, P.;De Visscher, S.;Kirschenmann, H.;Meijers, F.;Sakulin, H.;Sharma, A.;Silva, P.;Wöhri, H.K.;Kaestli, H.C.;Rossini, M.;Takahashi, M.;Caminada, L.;Kaya, M.;Paramesvaran, S.;Bundock, A.;Elwood, A.;Cole, J.E.;Mclean, C.;Florent, A.;Gouskos, L.;Gran, J.;Richman, J.;Xie, S.;Gaz, A.;Dittmer, S.;Apollinari, G.;Butler, J.N.;Nahn, S.;Tran, N.V.;Wang, J.;Khatiwada, A.;Roy, T.;Durgut, S.;Ozok, F.;Khalil, S.;Saini, L.K.;Kolberg, T.;Tonjes, M.B.;Barbieri, R.;Roland, C.;Varma, M.;Veverka, J.;Wyslouch, B.;Gude, A.;Kravchenko, I.;George, J.;Schmitt, M.;Parashar, N.;Verzetti, M.;Chou, J.P.;Dragoiu, C.;Cepeda, M.;Smith, W.H. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | CMS;Higgs;Lepton-flavour-violation;Physics |
| 日期: | 2016-12-10 |
| 上傳時間: | 2026-04-23 13:18:41 (UTC+8) |
| 出版者: | Elsevier B.V |
| 摘要: | 摘要： A direct search for lepton flavour violating decays of the Higgs boson (H) in the H→eτ and H→eμ channels is described. The data sample used in the search was collected in proton–proton collisions at s=8 TeV with the CMS detector at the LHC and corresponds to an integrated luminosity of 19.7 fb−1. No evidence is found for lepton flavour violating decays in either final state. Upper limits on the branching fractions, B(H→eτ)<0.69% and B(H→eμ)<0.035%, are set at the 95% confidence level. The constraint set on B(H→eτ) is an order of magnitude more stringent than the existing indirect limits. The limits are used to constrain the corresponding flavour violating Yukawa couplings, absent in the standard model.
出版者： Elsevier B.V
出版日期： 2016-12-10
出處： Physics letters. B, 2016-12, Vol.763, p.472-500
資源來源： Elsevier ScienceDirect Journals: Bodleian Libraries collection
版權： 2016 The Author(s)
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2016.09.062 |
| 顯示於類別: | [物理學系] 期刊論文
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