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>Thermodynamics and Fluctuations-Correlations of Conserved Charges in a Hadron Resonance Gas Model with Attractive and Repulsive Interaction within S-Matrix Formalism
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Thermodynamics and Fluctuations-Correlations of Conserved Charges in a Hadron Resonance Gas Model with Attractive and Repulsive Interaction within S-Matrix Formalism
We have extended the hadron resonance gas (HRG) model by including the effect of both attractive and repulsive interaction in the scattering matrix (S-matrix) formalism. The attractive part of the interaction is calculated using K-matrix formalism while the repulsive part is included by fitting to experimental phase shifts. We have calculated various thermodynamics quantities like pressure, energy density, entropy density etc. A good agreement between our calculations and the hadronic phase of the lattice QCD (LQCD) simulations is observed. We have also calculated fluctuations and correlations for various conserved charges like baryon, strangeness and electric charge. In the present model, χ B 2 , χ B S 11 and C B S agree well with the LQCD data.
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机译:我们通过包括在散射矩阵(S-基质)形式主义中的吸引力和排斥相互作用的效果来扩展到强子共振气体(HRG)模型。使用K矩阵形式主义计算相互作用的有吸引力的部分,而通过拟合到实验相移,包括排斥部分。我们已经计算了各种热力学量,如压力,能量密度,熵密度等。观察我们的计算与晶格QCD(LQCD)模拟的重新分析之间的良好一致性。我们还计算了各种保守费用,如Baryon,陌生和电荷等各种保护费用。在本模型中,χB2,χBs11和C B S与LQCD数据很好。
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