資料載入中.....
|
請使用永久網址來引用或連結此文件:
https://ir.lib.ncu.edu.tw/handle/987654321/106773
|
| 題名: | Search for pair produced fourth-generation up-type quarks in pp collisions at √s=7 TeV with a lepton in the final state |
| 作者: | 余欣珊;Chatrchyan, S.;Roland, B.;Liao, J.;Souza, M.H.G.;Malek, M.;Ban, Y.;Mahmoud, M.A.;Besancon, M.;Fabbro, B.;Ferri, F.;Beaudette, F.;Chasserat, J.;Kreuzer, P.;Papacz, P.;Reithler, H.;Calligaris, L.;Costanza, F.;Geiser, A.;Petrukhin, A.;Raspereza, A.;Böser, C.;Saini, L.K.;Malhotra, S.;Banerjee, S.;Shukla, P.;Venditti, R.;Gonzi, S.;Colafranceschi, S.;Di Matteo, L.;Bisello, D.;Nespolo, M.;Saha, A.;Bagliesi, G.;Tenchini, R.;Rahatlou, S.;Soffi, L.;Demaria, N.;Potenza, A.;Penzo, A.;Kong, D.J.;Ro, S.R.;Moon, D.H.;Reucroft, S.;Asghar, M.I.;Shmatov, S.;Golubev, N.;Pashenkov, A.;Dremin, I.;Vinogradov, A.;Arce, P.;Cerrada, M.;Fernandez Menendez, J.;Folgueras, S.;Bloch, P.;Camporesi, T.;Govoni, P.;Lee, Y.-J.;De Visscher, S.;Ivova Rikova, M.;Eskut, E.;Gülmez, E.;Brooke, J.J.;Flacher, H.;Colling, D.;Dauncey, P.;Khan, A.;Fantasia, C.;Conway, J.;Kopecky, A.;Hanson, G.;Flowers, K.;Newman, H.B.;Ford, W.T.;Stenson, K.;Kreis, B.;Tucker, J.;Marraffino, J.M.;Newman-Holmes, C.;Prokofyev, O.;Vidal, R.;Johnson, K.F.;Bai, Y.;Varelas, N.;Albayrak, E.A.;Murray, M.;Hahn, K.A.;Yilmaz, Y.;Zanetti, M.;Dahmes, B.;Claes, D.R.;Karmgard, D.J.;Wayne, M.;Piroué, P.;Barker, A.;Flanagan, W.;Snook, B.;Balazs, M.;Friis, E.;Ojalvo, I.;Ross, I. |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2012-12-05 |
| 上傳時間: | 2026-04-23 13:41:54 (UTC+8) |
| 出版者: | United States: Elsevier |
| 摘要: | 摘要： The results of a search for the pair production of a fourth-generation up-type quark (t') in proton-proton collisions at sqrt(s) = 7 TeV are presented, using data corresponding to an integrated luminosity of about 5.0 inverse femtobarns collected by the Compact Muon Solenoid experiment at the LHC. The t' quark is assumed to decay exclusively to a W boson and a b quark. Events with a single isolated electron or muon, missing transverse momentum, and at least four hadronic jets, of which at least one must be identified as a b jet, are selected. No significant excess of events over standard model expectations is observed. Upper limits for the t' anti-t' production cross section at 95% confidence level are set as a function of t' mass, and t'-quark production for masses below 570 GeV is excluded. The search is equally sensitive to nonchiral heavy quarks decaying to Wb. In this case, the results can be interpreted as upper limits on the production cross section times the branching fraction to Wb.
出版者： United States: Elsevier
出版日期： 2012-12-05
出處： Physics Letters. Section B, 2012-12, Vol.718 (2), p.307-328
資源來源： Elsevier ScienceDirect Journals Complete
識別號： ISSN: 0370-2693
識別號： DOI: 10.1016/j.physletb.2012.10.038 |
| 顯示於類別: | [物理學系] 期刊論文
|
文件中的檔案:
| 檔案 |
描述 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | | 0Kb | HTML | 15 | 檢視/開啟 |
|
在NCUIR中所有的資料項目都受到原著作權保護.
|
