Measurement of prompt and nonprompt j/psi production in pp and ppb collisions at root s(nn)=5.02 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 | European physical journal c
 |
| 出版日期 | 2017-04-27 |
| 卷号 | 77期号:4页码:27 |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-017-4828-3 |
| 通讯作者 | Sirunyan, a. m.() |
| 英文摘要 | This paper reports the measurement of j/psi meson production in proton proton (pp) and proton lead (ppb) collisions at a center-of-mass energy per nucleon pair of 5.02 tev by the cms experiment at the lw. the data samples used in the analysis correspond to integrated luminosities of 28 ph(-1) and 35 nb(-1) for pp and ppb collisions, respectively. prompt and nonprompt j/psi mesons, the latter produced in the decay of b hadrons, are measured in their dilution decay channels, differential cross sections are measured in the transverse momentum range of 2 < p(t) < 30 gev/c, and center-of-mass rapidity ranges of vertical bar y(cm)vertical bar < 2.4 (pp) and -2.87 < y(cm) < 1.93 (ppb). the nuclear modification factor, r-ppb, is measured as a function of both p(t) and y(cm). small modifications to the j/psi cross sections are observed in ppb relative to pp collisions. the ratio of j/psi production cross sections in p-going and pb-going directions, r-fb, studied as functions of p(t) and y(cm), shows a significant decrease for increasing transverse energy deposited at large pseudorapidities. these results, which cover a wide kinematic range, provide new insight on the role of cold nuclear matter effects on prompt and nonprompt j/psi production. |
| WOS关键词 | MONTE-CARLO ; SUPPRESSION ; PLUS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000400447200003 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177438 |
| 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 prompt and nonprompt j/psi production in pp and ppb collisions at root s(nn)=5.02 tev[J]. European physical journal c,2017,77(4):27. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Hoorani, H. R..(2017).Measurement of prompt and nonprompt j/psi production in pp and ppb collisions at root s(nn)=5.02 tev.European physical journal c,77(4),27. |
| MLA | Sirunyan, A. M.,et al."Measurement of prompt and nonprompt j/psi production in pp and ppb collisions at root s(nn)=5.02 tev".European physical journal c 77.4(2017):27. |
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