Measurement of the semileptonic t(t)over-bar + gamma production cross section in pp collisions at root s=8 tev
文献类型：期刊论文
| 作者 | 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; Flechl, M.2 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-10-02 |
| 期号 | 10页码:42 |
| 关键词 | Hadron-hadron scattering (experiments) Top physics |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep10(2017)006 |
| 通讯作者 | Sirunyan, a. m.() |
| 英文摘要 | A measurement of the cross section for top quark-antiquark (t (t) over bar) pairs produced in association with a photon in proton-proton collisions at root s = 8tev is presented. the analysis uses data collected with the cms detector at the lhc, corresponding to an integrated luminosity of 19.7 fb(1). the signal is de fined as the production of a t (t) over bar pair in association with a photon having a transverse energy larger than 25 gev and an absolute pseudorapidity smaller than 1.44. the measurement is performed in the fiducial phase space corresponding to the semileptonic decay chain of the t (t) over bar pair, and the cross section is measured relative to the inclusive t (t) over bar pair production cross section. the fiducial cross section for associated t (t) over bar pair and photon production is found to be 127 +/- 27 (stat + syst) fb per semileptonic final state. the measured value is in agreement with the theoretical prediction. |
| WOS关键词 | HADRON COLLIDERS ; BOSON PRODUCTION ; CROSS-SECTION ; O(ALPHA(2)(S)) ; LHC |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000412101600006 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177109 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Sirunyan, A. M. |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 5.Univ Antwerp, Antwerp, Belgium 6.Vrije Univ Brussel, Brussels, Belgium 7.Univ Libre Bruxelles, Brussels, Belgium 8.Univ Ghent, Ghent, Belgium 9.Catholic Univ Louvain, Louvain La Neuve, Belgium 10.Univ Mons, Mons, Belgium |
| 推荐引用方式 GB/T 7714 | Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Measurement of the semileptonic t(t)over-bar + gamma production cross section in pp collisions at root s=8 tev[J]. Journal of high energy physics,2017(10):42. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Hoorani, H. R..(2017).Measurement of the semileptonic t(t)over-bar + gamma production cross section in pp collisions at root s=8 tev.Journal of high energy physics(10),42. |
| MLA | Sirunyan, A. M.,et al."Measurement of the semileptonic t(t)over-bar + gamma production cross section in pp collisions at root s=8 tev".Journal of high energy physics .10(2017):42. |
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