论文标题

在热培养基中对重味的哈隆及其特性的有效理论描述

Effective-theory description of heavy-flavored hadrons and their properties in a hot medium

论文作者

Montaña, Glòria

论文摘要

该论文调查了具有夸克含量的异国辐射,可以理解为从强子 - 哈德隆相互作用动态产生。这种相互作用源自适当的有效拉格朗日,并以完整的耦合通道基础适当地单位。特别是,我们讨论了最近在LHCB发现的某些ωc*激发态的解释,为中孔 - 巴里昂分子状态。我们还讨论了从伪凯尔术和矢量迷住的介子散布在光中膜上的激发式旋转介体的动态产生。我们表明,预测D0*(2300)状态以及D1(2430)的双极结构,而DS0*(2317)和DS1(2460)可以解释为分子结合状态。还提出了这些计算到底部扇区的扩展。此外,我们研究了热培养基中开放的重味内膜的热修饰。通过扩展到单位化有效相互作用与光中介子的有限温度的扩展,我们获得了D,D*,DS和DS*地面介子的中等光谱特性。我们还分析了质量的温度依赖性和动态生成状态的衰减宽度。此外,我们通过利用Lagrangian的重夸克自旋味对称性来为底部的介体提供结果。我们采用依赖温度的光谱函数来计算魅力欧几里得相关器。我们还介绍了在实施中等内部散射幅度和重 - 膜光谱特性的热散射幅度和热依赖性的HADRONIC相中的外壳转运系数的计算。

This dissertation investigates exotic hadrons with heavy-quark content that may be understood as being generated dynamically from the hadron-hadron interaction. This interaction is derived from a suitable effective Lagrangian and properly unitarized in a full coupled-channel basis. In particular, we discuss the possible interpretation of some of the Ωc* excited states recently discovered at LHCb as being meson-baryon molecular states. We also discuss the dynamical generation of excited open-charm mesons from the scattering of pseudoscalar and vector charmed mesons off light mesons. We show that a double-pole structure is predicted for the D0*(2300) state, as well as for the D1(2430), while the Ds0*(2317) and the Ds1(2460) may be interpreted as molecular bound states. Extensions of these calculations to the bottom sector are also presented. Furthermore, we investigate the thermal modification of the open heavy-flavor mesons in a hot medium. By means of an extension to finite temperature of the unitarized effective interactions with the light mesons, we obtain the in-medium spectral properties of the D, D*, Ds, and Ds* ground-state mesons. We also analyze the temperature dependence of the masses and the decay widths of the dynamically generated states. Additionally, we provide results for the bottomed mesons by exploiting the heavy-quark spin-flavor symmetry of the Lagrangian. We employ the temperature-dependent spectral functions to compute charm Euclidean correlators. We also present calculations of off-shell transport coefficients in the hadronic phase implementing in-medium scattering amplitudes and the thermal dependence of the heavy-meson spectral properties.

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