通过淬灭射流周围奇异度增强探测介质响应

IF 4.3 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics Letters B Pub Date : 2025-05-02 DOI:10.1016/j.physletb.2025.139520

Ao Luo , Shanshan Cao , Guang-You Qin

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引用次数: 0

摘要

射流诱导介质激发是相对论重离子碰撞中夸克-胶子等离子体（QGP）与射流相互作用的重要组成部分，最近首次被实验证实。在AMPT模型仿真的基础上，提出了淬火射流周围奇异性增强作为射流诱导介质激励的一种新特征。通过应用喷注-粒子相关技术，我们计算了喷注周围的喷注诱导粒子产率，发现相对于质子-质子碰撞，相对论性核-核碰撞中与喷注相关的奇异-非奇异强子比和双-单奇异强子比显著增强。这种增强随着射流- qgp相互作用强度和距射流轴径向距离的增加而增加。这些观测结果与强子形成过程中射流诱导介质激发和部分子聚并的特征一致，有待于在未来的测量中进行实验验证。

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Probing medium response via strangeness enhancement around quenched jets

Jet-induced medium excitation is a crucial part of jet interactions with the quark-gluon plasma (QGP) in relativistic heavy-ion collisions, and has recently been confirmed by experiment for the first time. Based on the AMPT model simulation, we propose the strangeness enhancement around quenched jets as a novel signature of jet-induced medium excitation. By applying the jet-particle correlation techniques, we calculate jet-induced particle yields around the jets and find a significant enhancement of the strange-to-non-strange-hadron ratio and the double-to-single-strange-hadron ratio correlated with jets in relativistic nucleus-nucleus collisions relative to proton-proton collisions. This enhancement increases with both the strength of jet-QGP interactions and the radial distance from jet axis. These observations align with the features of jet-induced medium excitation and parton coalescence in hadron formation, and await experimental validation in the future measurements.

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来源期刊

Physics Letters B 物理-物理：综合

CiteScore

9.10

自引率

6.80%

发文量

647

审稿时长

3 months

期刊介绍： Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.