Nuclear effects on the transverse momentum spectra of charged particles in ppb collisions at root s(nn)=5.02 tev
文献类型：期刊论文
| 作者 | Khachatryan, V.1; Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Bergauer, T.2; Dragicevic, M.2; Eroe, J.2; Friedl, M.2; Fruehwirth, R.2; Ghete, V. M.2 |
| 刊名 | European physical journal c
 |
| 出版日期 | 2015-05-29 |
| 卷号 | 75期号:5页码:25 |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-015-3435-4 |
| 英文摘要 | Transverse momentum spectra of charged particles are measured by the cms experiment at the cern lhc in ppb collisions at root s(nn) = 5.02 tev, in the range 0.4 < pt < 120 gev/c and pseudorapidity |eta(cm)| < 1.8 in the proton-nucleon center-of-mass frame. for p(t) < 10 gev/c, the charged-particle production is asymmetric about eta(cm) = 0, with smaller yield observed in the direction of the proton beam, qualitatively consistent with expectations from shadowing in nuclear parton distribution functions (npdf). a pp reference spectrum at root s = 5.02 tev is obtained by interpolation from previous measurements at higher and lower center-of-mass energies. the p(t) distribution measured in ppb collisions shows an enhancement of charged particles with p(t) > 20 gev/c compared to expectations from the pp reference. the enhancement is larger than predicted by perturbative quantum chromodynamics calculations that include antishadowing modifications of npdfs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000355681400005 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/1639478 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Khachatryan, V. |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan 375036, Armenia 2.Inst Hochenergiephys OeAW, Vienna, Austria 3.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 4.Univ Antwerp, B-2020 Antwerp, Belgium 5.Vrije Univ Brussel, Brussels, Belgium 6.Univ Libre Bruxelles, Brussels, Belgium 7.Univ Ghent, B-9000 Ghent, Belgium 8.Catholic Univ Louvain, Louvain, Belgium 9.Univ Mons, B-7000 Mons, Belgium 10.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil |
| 推荐引用方式 GB/T 7714 | Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. Nuclear effects on the transverse momentum spectra of charged particles in ppb collisions at root s(nn)=5.02 tev[J]. European physical journal c,2015,75(5):25. |
| APA | Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Bergauer, T..,...&Levchenko, P..(2015).Nuclear effects on the transverse momentum spectra of charged particles in ppb collisions at root s(nn)=5.02 tev.European physical journal c,75(5),25. |
| MLA | Khachatryan, V.,et al."Nuclear effects on the transverse momentum spectra of charged particles in ppb collisions at root s(nn)=5.02 tev".European physical journal c 75.5(2015):25. |
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