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Measurement of the mass of the top quark in decays with a j/psi meson in pp collisions 8 tev

文献类型:期刊论文

作者Khachatryan, V.1; Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Dragicevic, M.2; Eroe, J.2
刊名Journal of high energy physics
出版日期2016-12-22
期号12页码:39
关键词Hadron-hadron scattering (experiments) Top physics
ISSN号1029-8479
DOI10.1007/jhep12(2016)123
通讯作者Khachatryan, v.()
英文摘要A first measurement of the top quark mass in the decay channel t -> (w -> l nu)(b -> j/psi + x -> mu(+) + mu(-) + x) is presented. the analysis uses events selected from the proton-proton collisions recorded by the cms detector at the lhc at a center-of-mass energy of 8tev. the data correspond to an integrated luminosity of 19.7 fb(-1), with 666 t (t) over bar and single top quark candidate events containing a reconstructed j/psi candidate decaying into an oppositely-charged muon pair. the mass of the (j/psi + l) system, where l is an electron or a muon from w boson decay, is used to extract a top quark mass of 173.5 +/- 3.0 (stat) +/- 0.9 (syst) gev.
WOS关键词MODEL ; LHC
WOS研究方向Physics
WOS类目Physics, Particles & Fields
语种英语
WOS记录号WOS:000408574100001
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2177028
专题高能物理研究所
通讯作者Khachatryan, V.
作者单位1.Yerevan Phys Inst, Yerevan, Armenia
2.OeAW, Inst Hochenergiephys, Vienna, Austria
3.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus
4.Univ Antwerp, Antwerp, Belgium
5.Vrije Univ Brussel, Brussels, Belgium
6.Univ Libre Bruxelles, Brussels, Belgium
7.Univ Ghent, Ghent, Belgium
8.Catholic Univ Louvain, Louvain, Belgium
9.Univ Mons, Mons, Belgium
10.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
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Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. Measurement of the mass of the top quark in decays with a j/psi meson in pp collisions 8 tev[J]. Journal of high energy physics,2016(12):39.
APA Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,...&Carrillo Moreno, S..(2016).Measurement of the mass of the top quark in decays with a j/psi meson in pp collisions 8 tev.Journal of high energy physics(12),39.
MLA Khachatryan, V.,et al."Measurement of the mass of the top quark in decays with a j/psi meson in pp collisions 8 tev".Journal of high energy physics .12(2016):39.

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来源:高能物理研究所

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