Transverse momentum and pseudorapidity dependences of $'\bm{Mach-like}'$ correlations for central Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

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dc.creatorZhang, S.
dc.creatorMa, G. L.
dc.creatorMa, Y. G.
dc.creatorCai, X. Z.
dc.creatorChen, J. H.
dc.creatorHuang, H. Z.
dc.creatorShen, W. Q.
dc.creatorShi, X. H.
dc.creatorJin, F.
dc.creatorTian, J.
dc.creatorZhong, C.
dc.creatorZuo, J. X.
dc.date2007-06-26
dc.date.accessioned2026-07-07T11:17:14Z
dc.date.available2026-07-07T11:17:14Z
dc.descriptionThe transverse momentum and pseudorapidity dependences of partonic {`\it{Mach-like}'} shock wave have been studied by using a multi-phase transport model (AMPT) with both partonic and hadronic interactions. The splitting parameter $D$, i.e. half distance between two splitting peaks on away side in di-hadron azimuthal angular ($Δϕ$) correlations, slightly increases with the transverse momentum of associated hadrons ($p^{assoc}_T$), which is consistent with preliminary experimental trend, owing to different interaction-lengths/numbers between wave partons and medium in strong parton cascade. On the other hand, the splitting parameter $D$ as a function of pseudorapidity of associated hadrons ($η^{assoc}$), keeps flat in mid-pseudorapidity region and rapidly drops in high-pseudorapidity region, which is as a result of different violent degrees of jet-medium interactions in the medium that has different energy densities in the longitudinal direction. It is proposed that the research on the properties of {`\it{Mach-like}'} correlation can shed light on the knowledge of both partonic and hadronic interactions at RHIC.
dc.description6 pages, 6 figures; accepted by Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/0706.3820
dc.identifierhttp://arxiv.org/abs/0706.3820
dc.identifierPhys.Rev.C76:014904,2007
dc.identifierdoi:10.1103/PhysRevC.76.014904
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192938
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleTransverse momentum and pseudorapidity dependences of $'\bm{Mach-like}'$ correlations for central Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
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