Overall momentum balance and redistribution of the lost energy in asymmetric dijet events in 2.76A TeV Pb-Pb collisions with a multiphase transport model

doi:10.1103/PhysRevC.97.044903

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

	Overall momentum balance and redistribution of the lost energy in asymmetric dijet events in 2.76A TeV Pb-Pb collisions with a multiphase transport model
	Gao, Z ; Luo, A ; Ma, GL ; Qin, GY ; Zhang, HZ
刊名	PHYSICAL REVIEW C
	2018
卷号	97 期号:4 页码:-
关键词	Heavy-ion Collisions Transverse-momentum Root-s(Nn)=2.76 Tev Centrality Dependence Azimuthal Anisotropy Particle-production Hadron Spectra Jet Production Inclusive Jet Dihadron
ISSN号	2469-9985
DOI	10.1103/PhysRevC.97.044903
文献子类	期刊论文
英文摘要	The overall transverse momentum balance and the redistribution of the lost energy from hard jets for asymmetric dijet events in PbPb collisions at 2.76A TeV at the LHC is studied within a multiphase transport (AMPT) model. A detailed analysis is performed for the projected transverse momentum < p(T)(parallel to)> contributed from the final charged hadrons carrying different transverse momenta and emitted from different angular directions. We find that the transverse momentum projection < p(T)(parallel to)> in the leading jet direction is mainly contributed by hard hadrons (p(T) > 8.0 GeV/c) in both peripheral and central PbPb collisions, while the opposite direction in central collisions is dominated by soft hadrons (p(T) = 0.5-2.0 GeV/c). The study of in-cone and out-of-cone contributions to < p(T)(parallel to)> shows that these soft hadrons are mostly emitted at large angles away from the dijet axis. Our AMPT calculation is in qualitative agreement with the CMS measurements and the primary mechanism for the energy transported to large angles in theAMPTmodel is the elastic scattering at the partonic stage. Future studies including also inelastic processes should be helpful in understanding the overestimation of the magnitudes of in-cone and out-of-cone imbalances from our AMPT calculations, and shed light on different roles played by radiative and collisional processes in the redistribution of the lost energy from hard jets.
语种	英语
WOS记录号	WOS:000429456600004
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/29098]
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.Gao, Z 2.Luo, A 3.Ma, GL 4.Qin, GY 5.Zhang, HZ
推荐引用方式 GB/T 7714	Gao, Z,Luo, A,Ma, GL,et al. Overall momentum balance and redistribution of the lost energy in asymmetric dijet events in 2.76A TeV Pb-Pb collisions with a multiphase transport model[J]. PHYSICAL REVIEW C,2018,97(4):-.
APA	Gao, Z,Luo, A,Ma, GL,Qin, GY,&Zhang, HZ.(2018).Overall momentum balance and redistribution of the lost energy in asymmetric dijet events in 2.76A TeV Pb-Pb collisions with a multiphase transport model.PHYSICAL REVIEW C,97(4),-.
MLA	Gao, Z,et al."Overall momentum balance and redistribution of the lost energy in asymmetric dijet events in 2.76A TeV Pb-Pb collisions with a multiphase transport model".PHYSICAL REVIEW C 97.4(2018):-.