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| 題名: | Search for the production of an excited bottom quark decaying to tW in proton-proton collisions at (Formula Presented.) TeV |
| 作者: | 林宗泰;Alderweireldt, S.;Van De Klundert, M.;Moreels, L.;Caillol, C.;Clerbaux, B.;Karapostoli, G.;Perniè, L.;Reis, T.;Gul, M.;Da Silveira, G. G.;Beliy, N.;De Jesus Damiao, D.;Mundim, L.;Aleksandrov, A.;Zhang, H.;Li, Q.;Lelas, D.;Tuominiemi, J.;Gras, P.;Lisniak, S.;Strebler, T.;Skovpen, K.;Bernet, C.;Klein, K.;Lipinski, M.;Dooling, S.;Garay Garcia, J.;Schoerner-Sadenius, T.;Kogler, R.;Lenz, T.;Sola, V.;Anagnostou, G.;Chatterjee, K.;Modak, A.;Radogna, R.;Rovelli, T.;Tosi, N.;Gori, V.;Dinardo, M. E.;Thyssen, F.;Jorda, C.;Micheli, F.;Kiani, B.;Yusli, M. N.;Lokhtin, I.;Myagkov, I.;Bitioukov, S.;Ryutin, R.;Uzunian, A.;Missiroli, M.;Castiñeiras De Saa, J. R.;Benitez, J. F.;Kortelainen, M. J.;Horisberger, R.;Renker, D.;Bachmair, F.;Kasieczka, G.;Marionneau, M.;Rossini, M.;Lange, C.;Cerci, S.;Surat, U. E.;Vardarlı, F. I.;Paramesvaran, S.;Casasso, S.;Leslie, D.;Call, K.;Kasmi, A.;Gastler, D.;Bhattacharya, S.;Breedon, R.;Ko, W.;Takasugi, E.;Ellison, J.;Hanson, G.;Olmedo Negrete, M.;Richman, J.;Apresyan, A.;Spiropulu, M.;Weber, H. A.;Bortignon, P.;Curry, D.;Rossin, R.;Bhopatkar, V.;Kalakhety, H.;Clarida, W.;Kenny, R. P.;Svintradze, I.;Eno, S. C.;Kalafut, S.;Ruckstuhl, N.;Ratnikov, F.;Hildreth, M.;Flowers, S.;Rorie, J.;Tu, Z.;Zabel, J.;Foerster, M.;Damgov, J.;Volobouev, I. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Classical and Quantum Gravitation;Elementary Particles;Physics;Physics and Astronomy;Quantum Field Theories;Quantum Field Theory;Quantum Physics;Regular Article - Experimental Physics;Relativity Theory;String Theory |
| 日期: | 2016-01-01 |
| 上傳時間: | 2026-04-23 14:07:06 (UTC+8) |
| 出版者: | Berlin/Heidelberg: Springer Berlin Heidelberg |
| 摘要: | 摘要： A bstract A search is presented for a singly produced excited bottom quark (b * ) decaying to a top quark and a W boson in the all-hadronic, lepton+jets, and dilepton final states in proton-proton collisions at s = 8 TeV recorded by the CMS experiment at the CERN LHC. Data corresponding to an integrated luminosity of 19.7 fb −1 are used. No significant excess of events is observed with respect to standard model expectations. We set limits at 95% confidence on the product of the b * quark production cross section and its branching fraction to tW. The cross section limits are interpreted for scenarios including left-handed, right-handed, and vector-like couplings of the b * quark and are presented in the two-dimensional coupling plane based on the production and decay coupling constants. The masses of the left-handed, right-handed, and vector-like b * quark states are excluded at 95% confidence below 1390, 1430, and 1530 GeV, respectively, for benchmark couplings. This analysis gives the most stringent limits on the mass of the b ∗ quark to date.
其他題名： J. High Energ. Phys
出版者： Berlin/Heidelberg: Springer Berlin Heidelberg
出版日期： 2016-01-27
出處： The journal of high energy physics, 2016-01, Vol.2016 (1)
資源來源： SpringerOpen Free (Free internet resource, activated by CARLI)
版權： The Author(s) 2016
識別號： EISSN: 1029-8479
識別號： DOI: 10.1007/JHEP01(2016)166 |
| 顯示於類別: | [物理學系] 期刊論文
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