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首页> 外文期刊>Physical review, C >Two-particle correlations with identified triggers in p-Pb collisions at root s(NN)=5.02 TeV using a multiphase transport model
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Two-particle correlations with identified triggers in p-Pb collisions at root s(NN)=5.02 TeV using a multiphase transport model

机译：使用多相传输模型，在根S（nn）= 5.02 tev中的p-pb碰撞中识别的触发的两个粒子相关性

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摘要

We report calculations regarding recent measurements of near-side jetlike yields obtained from the angular correlations with pions and protons as trigger particles and unindentified charged hadrons as associated at intermediate transverse momentum (p(T)). Events generated from the string melting version of a multiphase transport model (AMPT) and HIJING are analyzed to calculate the near-side jetlike yields associated with pion and proton triggers in p-Pb collisions at 5.02 TeV. Multiplicity dependence of the near-side jetlike yield is studied by subtracting the so-called long-range correlations. In A-A collisions, at intermediate p(T), jetlike yield associated with baryon trigger shows a gradual suppression from peripheral to central events following an initial rise. This suppression was interpreted as a combined effect of parton energy loss due to jet-quenching and particle production via quark recombination generating anomalous baryon to meson enhancement at intermediate p(T). Similar enhancement was also observed in small collision systems like p-Pb at CERN Large Hadron Collider (LHC) energy. In absence of any significant jet-medium interplay in small systems, trigger species dependence of the associated jetlike yield may be attributed dominantly to the dynamics of quark coalescence and/or radial flow. The multiplicity evolution of the trigger species dependence of jetlike yields, obtained from AMPT, found to be completely different from the same when extracted from a hydrodynamical model, EPOS. With the data available at LHC, these results may be tested to achieve further insight on the underlying dynamics in small collision systems, and the mechanism of hadronization at intermediate p(T) as well.
机译：我们报告了关于从与接头和质子的角度相关性获得的近侧喷射产量的最近测量的计算，作为触发颗粒和在中间横向动量（P（T））中相关的不确定的带电的重点。分析了从多相传输模型（AMPT）和HEIRE的字符串熔化版本产生的事件，以计算5.02 TEV的P-PB碰撞中的近侧喷射产量和质子触发。通过减去所谓的远程相关性来研究近侧喷射产量的多重依赖性。在A-a碰撞中，在中间p（t）中，与Baryon触发相关联的喷射产量显示初始上升后的外围到中央事件的逐渐抑制。这种抑制被解释为Parton能量损失的综合效果由于通过夸克重组产生异常p（t）中的乳腺重组产生异常缩醛，以产生异常的缩静脉。在CERN大强子撞机（LHC）能量的P-PB等小碰撞系统中也观察到类似的增强。在没有小系统中没有任何明显的喷射介质相互作用的情况下，相关的喷射产量的触发物种依赖性可以归因于夸克聚结和/或径向流动的动态。从AMPT获得的喷射产量的触发物种依赖的多重演变，发现当从流体动力学模型，EPOS提取时，发现与相同的相同。利用LHC可用的数据，可以测试这些结果以实现对小碰撞系统中的潜在动态的进一步洞察力，以及中间P（T）的结铬化机制。

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