| Measurement of the b-+/- meson nuclear modification factor in pb-pb collisions at root s(nn)=5.02 tev | |
| Sirunyan, A. M.1; Tumasyan, A.2; 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 | Physical review letters
 |
| 2017-10-13 | |
| 卷号 | 119期号:15页码:17 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.119.152301 |
| 通讯作者 | Sirunyan, a. m.() |
| 英文摘要 | The differential production cross sections of b-+/- mesons are measured via the exclusive decay channels b-+/- -> j/psi k-+/- -> mu(+)mu k--(+/-) as a function of transverse momentum in pp and pb-pb collisions at a center-of-mass energy root s(nn) = 5.02 tev per nucleon pair with the cms detector at the lhc. the pp(pb - pb) data set used for this analysis corresponds to an integrated luminosity of 28.0 pb(-1) (351 mu b(-1)). the measurement is performed in the b-+/- meson transverse momentum range of 7 to 50 gev/c, in the rapidity interval vertical bar y vertical bar < 2.4. in this kinematic range, a strong suppression of the production cross section by about a factor of 2 is observed in the pb-pb system in comparison to the expectation from pp reference data. these results are found to be roughly compatible with theoretical calculations incorporating beauty quark diffusion and energy loss in a quark-gluon plasma. |
| WOS关键词 | ENERGY-LOSS ; HEAVY FLAVOR ; QCD MATTER |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000412979000008 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2178298 |
| 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 b-+/- meson nuclear modification factor in pb-pb collisions at root s(nn)=5.02 tev[J]. Physical review letters,2017,119(15):17. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Byszuk, A..(2017).Measurement of the b-+/- meson nuclear modification factor in pb-pb collisions at root s(nn)=5.02 tev.Physical review letters,119(15),17. |
| MLA | Sirunyan, A. M.,et al."Measurement of the b-+/- meson nuclear modification factor in pb-pb collisions at root s(nn)=5.02 tev".Physical review letters 119.15(2017):17. |
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