Shedding Light on Hadronization by Quarkonium Energy Correlator

IF 8.1 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
An-Ping Chen, Xiaohui Liu, Yan-Qing Ma
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引用次数: 0

Abstract

We propose to measure the energy correlator in quarkonium production, which tracks the energy deposited in the calorimeter at the 𝜒-angular distance away from the identified quarkonium. The observable eliminates the need for jets while sustaining the perturbative predictive power. Analyzing the power correction to the energy correlator, we demonstrate that the novel observable supplies a unique gateway to probing the hadronization, especially when cos𝜒0 in the quarkonium rest frame, where the perturbative emissions are depleted due to the dead-cone effects. We expect the quarkonium energy correlator to add a new dimension to quarkonium studies.
用夸克鎓能量相关器揭示强子化现象
我们建议测量夸克子产生过程中的能量相关器,它可以跟踪在距离所识别的夸克子的𝜒角距离处沉积在量热计中的能量。该观测指标在保持微扰预测能力的同时,消除了对射流的需求。通过分析能量相关器的功率修正,我们证明这个新观测指标为探测强子化提供了一个独特的途径,特别是当夸克静止框中的cos𝜒≳0由于死锥效应而导致扰动发射耗尽时。我们期待夸克鎓能量相关器为夸克鎓研究增添新的维度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Physical review letters
Physical review letters 物理-物理:综合
CiteScore
16.50
自引率
7.00%
发文量
2673
审稿时长
2.2 months
期刊介绍: Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks
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