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

doi:10.1007/JHEP10(2018)061

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	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
	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
	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
内容类型	期刊论文
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):-.