$\sqrt {{{s}_{{NN}}}} $ = 9.2 GeV下Bi-Bi碰撞的直接光子干涉测量

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Letters Pub Date : 2025-10-03 DOI:10.1134/S1547477125701109

V. A. Kuskov, D. Yu. Peresun’ko, D. S. Blau

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引用次数: 0

摘要

我们考虑了在$\sqrt {{{s}_{{NN}}}} $ = 9.2 GeV的中心Bi-Bi碰撞中直接光子的玻色-爱因斯坦相关性。在UrQMD混合模型中计算了双光子相关。考虑一阶QCD相变和纯强子气体的两个状态方程，研究了夸克-胶子等离子体（QGP）和混合相的形成对观测值的影响。在包含QGP的情况下，外长参数化提取的相关半径在向外和纵向上显著增加，而侧向相关半径对状态方程不敏感。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$Direct Photon Interferometry in Bi–Bi Collision at $\sqrt {{{s}_{{NN}}}} $ = 9.2 GeV$

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Direct Photon Interferometry in Bi–Bi Collision at $\sqrt {{{s}_{{NN}}}} $ = 9.2 GeV

We consider Bose–Einstein correlations of direct photons in central Bi–Bi collisions at $\sqrt {{{s}_{{NN}}}} $ = 9.2 GeV. Two-photon correlations are calculated in UrQMD hybrid model. Two equations of state, one with the first-order QCD phase transition and the other with the pure hadron gas, are considered to study the effects of the formation of quark-gluon plasma (QGP) and mixed phase on the observables. The extracted correlation radii in out-side-long parametrization demonstrate significant increasing in outward and longitudinal directions for the scenario including QGP, while correlations in side direction are not sensitive to the equation of the state.

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来源期刊

Physics of Particles and Nuclei Letters PHYSICS, PARTICLES & FIELDS-

CiteScore

0.80

自引率

20.00%

发文量

108

期刊介绍： The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.

\(\sqrt {{{s}_{{NN}}}} \) = 9.2 GeV下Bi-Bi碰撞的直接光子干涉测量

摘要