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arXiv 1408.0216nucl-exhep-ex
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用ALICE测量pp,p-Pb和Pb-Pb碰撞中中高pT轻味强子的产生

Production of light flavour hadrons at intermediate and high pT in pp, p-Pb and Pb-Pb collisions measured with ALICE

Michael Linus Knichel

摘要:

中、高pT下的光味横动量谱为pp中微扰QCD过程的测量、p-Pb中初态效应的评价以及Pb-Pb碰撞中部分子能量损失的抑制研究提供了重要的基线。核修正因子RpPb的测量包括带电粒子扩展到50 GeV/c的pT相比,我们以前的测量,并保持一致的团结了最大的动量。结果RpPb的带电π介子,K介子和质子,覆盖高达14 GeV/c的pT和比较RpPb的包容性带电粒子。关于在铅铅碰撞中产生高达pT = 20 GeV/c的带电π子、k介子和质子,给出了RAA的最终结果。

英文摘要:

Light flavour transverse momentum spectra at intermediate and high pT provide an important baseline for the measurement of perturbative QCD processes in pp, for the evaluation of initial state effects in p-Pb, and for investigating the suppression from parton energy loss in Pb-Pb collisions. The measurement of the nuclear modification factor RpPb for inclusive charged particles is extended up to 50 GeV/c in pT compared to our previous measurement and remains consistent with unity up the largest momenta. Results on RpPb of charged pions, kaons and protons that cover up to 14 GeV/c in pT are presented and compared to RpPb of inclusive charged particles. On the production of charged pions, kaons, and protons up to pT = 20 GeV/c in Pb-Pb collisions final results for RAA are presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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