论文标题
伪尺度和矢量开放式介子在有限温度下
Pseudoscalar and vector open-charm mesons at finite temperature
论文作者
论文摘要
伪尺度和载体魅力介子的真空和热性能在自谐的多体方法中分析，采用了手性有效的野外理论，该理论结合了重夸克自旋对称性。真空相互作用振幅的单位化以完全耦合通道的基础上散射魅力介子，以搜索新的动态生成的状态。假想时间的形式主义被用来将计算扩展到有限温度至$ t = 150 $ MEV。提供了$ d $，$ d^*$，$ d_s $和$ d_s^*$ mesons的中型光谱形状。质量和衰减宽度的温度依赖性$ d_0^*$（2300）和$ d_1^*$（2430）梅森（2430）梅森（Meson）都在复杂能量飞机中显示了双极结构，也报告了$ d_ {s0}^*$（2317）和$ d_ $ d_}^$ d_ {s1}^*^*^*^*^**实验。作为以有限的方式以有限温度结合开放式载体介子的第一个计算，它带来了在手性和夸张的旋转对称性的角度讨论对开放式魅力部门的中等影响的机会。
Vacuum and thermal properties of pseudoscalar and vector charm mesons are analyzed within a self-consistent many-body approach, employing a chiral effective field theory that incorporates heavy-quark spin symmetry. Upon unitarization of the vacuum interaction amplitudes for the scattering of charm mesons off light mesons in a fully coupled-channel basis, new dynamically generated states are searched. The imaginary-time formalism is employed to extend the calculation to finite temperatures up to $T=150$ MeV. Medium-modified spectral shapes of the $D$, $D^*$, $D_s$ and $D_s^*$ mesons are provided. The temperature dependence of the masses and decay widths of the nonstrange $D_0^*$ (2300) and $D_1^*$(2430) mesons, both showing a double-pole structure in the complex-energy plane, is also reported, as well as that of the $D_{s0}^*$(2317) and $D_{s1}^*$(2460) resonances and other states not yet identified experimentally. Being the first calculation incorporating open-charm vector mesons at finite temperature in a self-consistent fashion, it brings up the opportunity to discuss the medium effects on the open charm sector under the perspective of chiral and heavy-quark spin symmetries.
