تقرير
Conserved charge fluctuations in the relativistic mean-field hadron resonance gas model: constraints on hadronic repulsive interactions
| العنوان: | Conserved charge fluctuations in the relativistic mean-field hadron resonance gas model: constraints on hadronic repulsive interactions |
|---|---|
| المؤلفون: | Pal, Somenath, Kadam, Guruprasad, Bhattacharyya, Abhijit |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology Nuclear Theory |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Nuclear Theory |
| الوصف: | We investigate the effect of repulsive interaction between hadrons on the susceptibilities of conserved charges, namely baryon number (B), electric charge (Q) and strangeness (S). We estimate second and fourth-order susceptibilities of conserved charges, their differences, ratios and correlations within the ambit of the mean-field hadron resonance gas (MFHRG) model. We consider repulsive mean-field interaction among meson pairs, anti-meson pairs, baryon pairs and anti-baryon pairs separately and constrain them by confronting MFHRG results of various susceptibilities with the recent lattice QCD (LQCD) data. We find that the repulsive interactions between baryon-baryon pairs and antibaryon-antibaryon pairs are sufficient to describe the thermodynamics of hadronic matter at temperatures below the QCD transition temperature. Very weak mesonic repulsive interaction is needed only to describe electric charge susceptibilities and can be neglected in the description of other susceptibilities. We finally conclude that the repulsive interaction between hadrons plays a very important role in describing the thermodynamic properties of hadronic matter, especially near quark-hadron phase transition temperature ($T_c$). The mean-field parameter for baryons ($K_B$) should be constrained to the range $0.40\le K_B\le 0.450$ $\text{GeV.fm}^{3}$ to get a good agreement with the LQCD results. Comment: 13 Pages, 17 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2305.13212 |
| رقم الأكسشن: | edsarx.2305.13212 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |