ALICE最新的喷射物理结果概述

J. Mulligan
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引用次数: 0

摘要

我们概述了最近用ALICE探测器在pp和Pb-Pb碰撞中的喷射测量。ALICE利用反$k_{\ maththrm {T}}$算法重建了中速射流,包括来自ALICE跟踪探测器的带电粒子射流,以及来自ALICE电磁量热计与跟踪系统组合的全射流。我们专注于包容性和半包容性射流测量以及射流子结构测量,包括各种修饰和未修饰的观测值。在pp碰撞中,这些结果在$p_{\ mathm {T,\;jet}}<140$ GeV$/c$的低堆积环境下测试了pQCD技术,并可以约束非扰动效应模型。在Pb-Pb碰撞中,这些测量结果验证了夸克-胶子等离子体中的射流猝灭模型,并可用于约束高温QCD物质的性质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Overview of the latest jet physics results from ALICE
We overview recent jet measurements in pp and Pb-Pb collisions with the ALICE detector. ALICE reconstructs jets at midrapidity using the anti-$k_{\mathrm{T}}$ algorithm, including both charged particle jets from the ALICE tracking detectors, and full jets from the combination of the ALICE electromagnetic calorimeter with the tracking system. We focus on inclusive and semi-inclusive jet measurements as well as jet substructure measurements, including a variety of groomed and ungroomed observables. In pp collisions, these results test pQCD techniques at $p_{\mathrm{T,\;jet}}<140$ GeV$/c$ in a low pileup environment, and can constrain models of non-perturbative effects. In Pb-Pb collisions, these measurements test models of jet quenching in the quark-gluon plasma, and can be used to constrain the properties of high temperature QCD matter.
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