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arXiv 2502.06396nucl-exhep-ex
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喷注与喷注子结构:ALICE 实验结果

Jet and jet substructure: ALICE results

Haidar Mas'ud Alfanda

AI总结:

该研究聚焦喷注及子结构,介绍ALICE实验利用高精度追踪系统在pp、p-Pb、Pb-Pb碰撞中测量喷注子结构观测量的进展,助力QCD及夸克-胶子等离子体性质研究。

摘要:

质子-质子(pp)碰撞中的喷注及其子结构为探索量子色动力学(QCD)的多个方面提供了独特机会,涵盖微扰QCD(pQCD)检验到强子化等非微扰现象研究,还能探测微扰与非微扰区域的过渡。在重离子碰撞中,喷注是研究退禁闭夸克-胶子等离子体(QGP)微观性质的新工具。近期,在开发喷注子结构观测量以探索这些性质方面取得显著进展。ALICE实验因其高精度追踪系统特别适合喷注测量,该系统对探测低横动量喷注尤为有利。本文将重点介绍ALICE近期在pp、p-Pb和Pb-Pb碰撞中关于全包容和半包容喷注的测量结果,以及各类喷注子结构观测量,并讨论数据与蒙特卡洛(MC)模型预测及解析计算的对比。

英文摘要:

Jets and their substructure in pp collisions offer a unique opportunity to probe various aspects of quantum chromodynamics (QCD), ranging from perturbative QCD (pQCD) tests to studies of non-perturbative phenomena such as hadronization. They also probe the transition between perturbative and non-perturbative regimes. In heavy-ion collisions, jets serve as a novel tool to investigate the microscopic properties of the deconfined quark-gluon plasma (QGP). Recently, significant progress has been made in developing jet substructure observables to explore these properties. The ALICE experiment is particularly well-suited for jet measurements due to its high-precision tracking system, which is especially beneficial for detecting low transverse momentum jets. This contribution will highlight recent ALICE measurements of inclusive and semi-inclusive jets, along with various jet substructure observables in pp, p-Pb, and Pb-Pb collisions. The comparisons between data and predictions from Monte Carlo (MC) models as well as analytical calculations will be discussed.

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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