Measurements of low-p(T) electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at root s(NN)=2.A76 TeV
文献类型：期刊论文
| 作者 | Acharya, S; Acosta, FT; Adamova, D; Adolfsson, J; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N; Ahammed, Z; Ahn, SU |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2018 |
| 期号 | 10页码:- |
| 关键词 | QUARK-GLUON PLASMA CHARGED-PARTICLE PRODUCTION LARGE TRANSVERSE-MOMENTUM ENERGY-LOSS ION COLLISIONS SUPPRESSION PERSPECTIVE PROTONS MATTER MESONS |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP10(2018)061 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Transverse-momentum (p(T)) differential yields of electrons from semileptonic heavy-flavour hadron decays have been measured in the most central (0-10%) and in semi-central (20-40%) Pb-Pb collisions at TeV. The corresponding production cross section in pp collisions has been measured at the same energy with substantially reduced systematic uncertainties with respect to previously published results. The modification of the yield in Pb-Pb collisions with respect to the expectation from an incoherent superposition of nucleon-nucleon collisions is quantified at mid-rapidity (|y| < 0.8) in the p(T) interval 0.5-3 GeV/c via the nuclear modification factor, R-AA. This paper extends the p(T) reach of the R-AA measurement towards significantly lower values with respect to a previous publication. In Pb-Pb collisions the p(T)-differential measurements of yields at low p(T) are essential to investigate the scaling of heavy-flavour production with the number of binary nucleon-nucleon collisions. Heavy-quark hadronization, a collective expansion and even initial-state effects, such as the nuclear modification of the Parton Distribution Function, are also expected to have a significant effect on the measured distribution. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31026]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Rudjer Boskovic Inst, Zagreb, Croatia 2.Politecnico Torino, Dipartimento DET, Turin, Italy 3.DV Skobeltsyn Inst Nucl, MV Lomonosov Moscow State Univ, Phys, Moscow, Russia 4.Aligarh Muslim Univ, Dept Appl Phys, Aligarh, Uttar Pradesh, India 5.Univ Wroclaw, Inst Theoret Phys, Wroclaw, Poland 6.AI Alikhanyan Natl Sci Lab, Yerevan Phys Inst Fdn, Yerevan, Armenia 7.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine 8.Bose Inst, Ctr Astroparticle Phys Space Sci CAPSS, Kolkata, India 9.Bose Inst, Dept Phys, Kolkata, India 10.Budker Inst Nucl Phys, Novosibirsk, Russia |
| 推荐引用方式 GB/T 7714 | Acharya, S,Acosta, FT,Adamova, D,et al. Measurements of low-p(T) electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at root s(NN)=2.A76 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(10):-. |
| APA | Acharya, S.,Acosta, FT.,Adamova, D.,Adolfsson, J.,Aggarwal, MM.,...&Zou, S.(2018).Measurements of low-p(T) electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at root s(NN)=2.A76 TeV.JOURNAL OF HIGH ENERGY PHYSICS(10),-. |
| MLA | Acharya, S,et al."Measurements of low-p(T) electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp and Pb-Pb collisions at root s(NN)=2.A76 TeV".JOURNAL OF HIGH ENERGY PHYSICS .10(2018):-. |
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来源：上海应用物理研究所
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