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首页> 外文期刊>Physical review, C >Hadronic effects on the cc(q)overbar(q)overbar tetraquark state in relativistic heavy ion collisions
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Hadronic effects on the cc(q)overbar(q)overbar tetraquark state in relativistic heavy ion collisions

机译:对CC&(q)exbar&&(q)rentbar& Tetraquark状态在相对论的重离子碰撞中

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摘要

We study the hadronic effects on the cc tetraquark state by focusing on the T-cc(1(+))meson during the hadronic stage of relativistic heavy ion collisions. We evaluate the absorption cross section of the T-cc meson by pions in the quasifree approximation, and investigate the time evolution of the T-cc abundance in the hadronic medium based on the effective volume and temperature of the hadronic phase at both the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) modeled by hydrodynamic calculations with the lattice equation of state. We probe two possible scenarios for the structure of the T-cc, where it is assumed to be either a compact multiquark state or a larger sized molecular configuration composed of DD*. Our numerical results suggest that the hadronic effects on the T-cc, production are insignificant, and its final abundance depends on the initial yield of the T-cc, produced from the quark-gluon plasma phase, which will depend on the assumed structure of the state.
机译:我们通过专注于相对论重离子碰撞的重整阶段的T-CC(1(+))梅森来研究CC TetraQuark状态的屈伸效应。我们通过Quasifree近似下的T-CC Meson的吸收横截面,并根据BNL相对论的HORRONIVE期的有效体积和温度调查TYRONIC介质中T-CC丰度的时间演变重离子撞机(RHIC)和CERN大型强子撞机(LHC)与具有晶格方程的流体动力学计算建模。我们探讨了T-CC结构的两个可能场景,其中假设是紧凑的多腔室状态或由DD *组成的更大尺寸的分子配置。我们的数值结果表明,对T-CC的辐射效应,产量微不足道,其最终丰度取决于T-CC的初始产量,从夸克 - 胶质等离子体相产生,这将取决于假设的结构国家。

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