Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV

doi:10.1007/JHEP09(2020)160

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV
	Acharya, S ; Acosta, FT ; Adam, J ; Adamova, D ; Adler, A ; Adolfsson, J ; Aggarwal, MM ; Rinella, GA ; Agnello, M ; Agrawal, N
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2020
期号	9 页码:-
关键词	RELATIVISTIC NUCLEAR COLLISIONS ELLIPTIC FLOW EVENT FLUCTUATIONS FIELD MODEL
ISSN号	1029-8479
DOI	10.1007/JHEP09(2020)160
文献子类	期刊论文
英文摘要	Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at root s(NN) = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (eta) and transverse momentum (p(T)) ranges \|eta\| < 0.8 and 0.2 < p(T) < 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators gamma(1, 1) = < cos(phi(alpha) + phi(beta) - 2 psi(2))> and gamma(1, - 3) = < cos(phi(alpha) - 3 phi(beta) + 2 psi(2))>. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured gamma(1,1). Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form gamma(1, 2) = < cos(phi(alpha) + 2 phi(beta) - 3 psi(3))>, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of gamma(1,1).
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32757]
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.Sezione Ist Nazl Fis Nucl, Trieste, Italy 2.INFN, Sez Torino, Alessandria, Italy 3.Eberhard Karls Univ Tubingen, Phys Inst, Tubingen, Germany 4.Yerevan Phys Inst, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia 5.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine 6.Bose Inst, Dept Phys, Kolkata, India 7.Bose Inst, Ctr Astroparticle Phys & Space Sci, Kolkata, India 8.Budker Inst Nucl Phys, Novosibirsk, Russia 9.Calif Polytechn State Univ, San Luis Obispo, CA USA 10.Cent China Normal Univ, Wuhan, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Acharya, S,Acosta, FT,Adam, J,et al. Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2020(9):-.
APA	Acharya, S.,Acosta, FT.,Adam, J.,Adamova, D.,Adler, A.,...&Zmeskal, J.(2020).Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV.JOURNAL OF HIGH ENERGY PHYSICS(9),-.
MLA	Acharya, S,et al."Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV".JOURNAL OF HIGH ENERGY PHYSICS .9(2020):-.