Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at root s(NN)=2.76 TeV | |
CMS Collaboration | |
刊名 | JOURNAL OF HIGH ENERGY PHYSICS
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2011 | |
期号 | 8 |
关键词 | HEAVY-ION COLLISIONS NUCLEAR COLLISIONS MODEL LHC QCD |
通讯作者 | Sirunyan, AM (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
英文摘要 | A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76 TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density, dN(ch)/d eta vertical bar(eta=0), for head-on collisions is found to be 1612 +/- 55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented. |
学科主题 | Physics |
类目[WOS] | Physics, Particles & Fields |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000294901200018 |
公开日期 | 2016-02-25 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/213109] ![]() |
专题 | 高能物理研究所_粒子天体物理中心 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | CMS Collaboration. Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at root s(NN)=2.76 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(8). |
APA | CMS Collaboration.(2011).Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at root s(NN)=2.76 TeV.JOURNAL OF HIGH ENERGY PHYSICS(8). |
MLA | CMS Collaboration."Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at root s(NN)=2.76 TeV".JOURNAL OF HIGH ENERGY PHYSICS .8(2011). |
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