Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV

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题名:	Event shapes and azimuthal correlations in Z+jets events in pp collisions at s=7 TeV
作者:	余欣珊;Chatrchyan, S.;Mossolov, V.;Correa Martins Junior, M.;Malbouisson, H.;Matos Figueiredo, D.;Novaes, S.F.;Genchev, V.;Asawatangtrakuldee, C.;Li, W.;Qian, S.J.;Antunovic, Z.;Müntel, M.;Karimäki, V.;Kinnunen, R.;Chasserat, J.;Kreuzer, P.;Papacz, P.;Reithler, H.;Calligaris, L.;Costanza, F.;Marfin, I.;Melzer-Pellmann, I.-A.;Schmidt, R.;Heinrich, M.;Mertzimekis, T.J.;Kaur, M.;Roy, D.;Silvestris, L.;Abbiendi, G.;Montanari, A.;Cappello, G.;Potenza, R.;Benussi, L.;Tosi, S.;Lista, L.;Bisello, D.;Nappi, A.;Spiezia, A.;Fanelli, C.;Nourbakhsh, S.;Casasso, S.;Park, H.;Roh, Y.;Park, I.C.;Bell, A.J.;Qazi, S.;Frueboes, T.;Szleper, M.;Konecki, M.;Golovtsov, V.;Sulimov, V.;Vorobyev, An;Ekmedzic, M.;de Trocóniz, J.F.;Brochero Cifuentes, J.A.;Calderon, A.;De Roeck, A.;Harvey, J.;Lourenço, C.;Sekmen, S.;Langenegger, U.;Tauscher, L.;Snoek, H.;Chao, Y.;Aliev, T.;Bilmis, S.;Pioppi, M.;Leslie, D.;Turner, M.;Ko, W.;Lander, R.;Clare, R.;Sturdy, J.;Wilken, R.;Branson, J.G.;Petrucciani, G.;Kovalskyi, D.;Rossin, R.;Zhu, R.Y.;Vogel, H.;Heltsley, B.;Chetluru, V.;Elvira, V.D.;Gao, Y.;McBride, P.;Sharma, S.;Rinkevicius, A.;Evdokimov, O.;Ivanov, A.;Svintradze, I.;Gomez Ceballos, G.;Singovsky, A.;Ofierzynski, R.A.;Kolb, J.;Piroué, P.;Laasanen, A.T.;Yang, Z.C.;Appelt, E.;Delannoy, A.G.;Grothe, M.
贡献者:	理學院物理學系
关键词:	CMS;Event shape;Physics;QCD
日期:	2013-05-24
上传时间:	2026-04-23 11:53:45 (UTC+8)
出版者:	United States: Elsevier B.V
摘要:	摘要： Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton–proton collisions. The data collected with the CMS detector at the CERN LHC at s=7 TeV correspond to an integrated luminosity of 5.0 fb−1. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z+1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models. 出版者： United States: Elsevier B.V 出版日期： 2013-05-24 出處： Physics Letters. Section B, 2013-05, Vol.722 (4-5), p.238-261 資源來源： ScienceDirect (Elsevier) Journals 版權： 2013 CERN 識別號： ISSN: 0370-2693 識別號： EISSN: 1873-2445 識別號： DOI: 10.1016/j.physletb.2013.04.025
显示于类别:	[物理學系] 期刊論文

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