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| 題名: | Measurement of the CP-violating weak phase φs and the decay width difference δΓc using the Bs0→J/ψφ(1020) decay channel in pp collisions at √ s=8 TeV |
| 作者: | 林宗泰;Sirunyan, A.M.;Hartl, C.;Jeitler, M.;Knutsson, A.;Randle-conde, A.;Vander Velde, C.;Zenoni, F.;Garcia, G.;Favart, D.;Hamer, M.;Puljak, I.;Luetic, J.;Ptochos, F.;Razis, P.A.;Lindén, T.;Dejardin, M.;Denegri, D.;Filipovic, N.;Skovpen, K.;Laktineh, I.B.;Pequegnot, A.L.;Reithler, H.;Hoehle, F.;Pistone, C.;Dolinska, G.;Steinbrück, G.;Troendle, D.;Frensch, F.;Giffels, M.;Daskalakis, G.;Tziaferi, E.;Beri, S.B.;Banerjee, S.;Behnamian, H.;De Palma, M.;Masetti, G.;Travaglini, R.;Tosi, S.;Bisello, D.;Lacaprara, S.;Maron, G.;Ratti, S.P.;Vitulo, P.;Spagnolo, P.;Del Re, D.;Diemoz, M.;Rahatlou, S.;Rovelli, C.;Monaco, V.;Tamponi, U.;Vaitkus, J.;Butler, P.H.;Ahmad, A.;Shoaib, M.;Konoplyanikov, V.;Epshteyn, V.;Vlasov, E.;Dremin, I.;Volkov, A.;De Guio, F.;Dupont, N.;Gigi, D.;Lourenço, C.;Nemallapudi, M.V.;Dittmar, M.;Quittnat, M.;Wallny, R.;Robmann, P.;Bartek, R.;Meng, Z.;Baber, M.;Corpe, L.;Hall, G.;Nikitenko, A.;Pela, J.;Wilbur, S.;Yohay, R.;Long, O.R.;Bradmiller-Feld, J.;Golf, F.;Bunn, J.;Russ, J.;Konigsberg, J.;Veeraraghavan, V.;Kalakhety, H.;Ozok, F.;Belloni, A.;Innocenti, G.M.;Sumorok, K.;Bose, S.;Dolen, J.;Pozdnyakov, A.;Marinelli, N.;Svyatkovskiy, A.;Demina, R.;Hughes, E.;Pakhotin, Y.;Xia, F.;Karchin, P.E.;Christian, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | B-physics;CMS;CP violation;Physics |
| 日期: | 2016-06-10 |
| 上傳時間: | 2026-04-23 12:13:00 (UTC+8) |
| 出版者: | Elsevier B.V |
| 摘要: | 摘要： The CP-violating weak phase ϕs of the Bs0 meson and the decay width difference ΔΓs of the Bs0 light and heavy mass eigenstates are measured with the CMS detector at the LHC using a data sample of Bs0→J/ψϕ(1020)→μ+μ−K+K− decays. The analysed data set corresponds to an integrated luminosity of 19.7fb−1 collected in pp collisions at a centre-of-mass energy of 8TeV. A total of 49 200 reconstructed Bs0 decays are used to extract the values of ϕs and ΔΓs by performing a time-dependent and flavour-tagged angular analysis of the μ+μ−K+K− final state. The weak phase is measured to be ϕs=−0.075±0.097(stat)±0.031(syst) rad, and the decay width difference is ΔΓs=0.095±0.013(stat)±0.007(syst) ps−1.
出版者： Elsevier B.V
出版日期： 2016-06-10
出處： Physics letters. B, 2016-06, Vol.757, p.97-120
資源來源： ScienceDirect (Elsevier) Journals
版權： 2016 CERN for the benefit of the CMS Collaboration
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2016.03.046 |
| 顯示於類別: | [物理學系] 期刊論文
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