Cross section measurement of t-channel single top quark production in pp collisions at root s=13 tev
文献类型:期刊论文
作者 | Sirunyan, A. M.2; Tumasyan, A.2; Adam, W.3; Asilar, E.3; Bergauer, T.3; Brandstetter, J.3; Brondolin, E.3; Dragicevic, M.3; Eroe, J.3; Flechl, M.3 |
刊名 | Physics letters b |
出版日期 | 2017-09-10 |
卷号 | 772页码:752-776 |
ISSN号 | 0370-2693 |
关键词 | Cms Physics Top quark |
DOI | 10.1016/j.physletb.2017.07.047 |
通讯作者 | Sirunyan, a. m.(cms-publication-committee-chair@cern.ch) |
英文摘要 | The cross section for the production of single top quarks in the t channel is measured in proton- proton collisions at 13tev with the cms detector at the lhc. the analyzed data correspond to an integrated luminosity of 2.2fb(-1). the event selection requires one muon and two jets where one of the jets is identified as originating from a bottom quark. several kinematic variables are then combined into a multivariate discriminator to distinguish signal from background events. a fit to the distribution of the discriminating variable yields a total cross section of 238 +/- 13 (stat)+/- 29(syst) pband a ratio of top quark and top antiquark production of rt-ch.= 1.81 +/- 0.18 (stat)+/- 0.15(syst). from the total cross section the absolute value of the ckm matrix element vtbis calculated to be 1.05 +/- 0.07 (exp)+/- 0.02(theo). all results are in agreement with the standard model predictions. (c) 2017 the author(s). published by elsevier b.v. |
WOS关键词 | PARTON DISTRIBUTIONS ; LHC |
WOS研究方向 | Astronomy & Astrophysics ; Physics |
WOS类目 | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000411369700108 |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177160 |
专题 | 高能物理研究所 |
通讯作者 | Sirunyan, A. M. |
作者单位 | 1.CERN, Geneva, Switzerland 2.Yerevan Phys Inst, Yerevan, Armenia 3.Inst Hochenergiephys, Vienna, Austria 4.Inst Nucl Problems, Minsk, Byelarus 5.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 6.Univ Antwerp, Antwerp, Belgium 7.Vrije Univ Brussel, Brussels, Belgium 8.Univ Libre Bruxelles, Brussels, Belgium 9.Univ Ghent, Ghent, Belgium 10.Catholic Univ Louvain, Louvain Ia Neuve, Belgium |
推荐引用方式 GB/T 7714 | Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Cross section measurement of t-channel single top quark production in pp collisions at root s=13 tev[J]. Physics letters b,2017,772:752-776. |
APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Carpinteyro, S..(2017).Cross section measurement of t-channel single top quark production in pp collisions at root s=13 tev.Physics letters b,772,752-776. |
MLA | Sirunyan, A. M.,et al."Cross section measurement of t-channel single top quark production in pp collisions at root s=13 tev".Physics letters b 772(2017):752-776. |
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来源:高能物理研究所
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