论文标题
重型矢量和轴向矢量$ d $介子中的热磁性不对称核物质
Heavy vector and axial-vector $D$ mesons in hot magnetized asymmetric nuclear matter
论文作者
论文摘要
我们观察到有限磁场对中等内质量和衰减常数的影响，平均矢量$ d^*（d^{*^+}，d^{*^0}）$和axial-vector $ d_1（d^+_ _ 1，d^0_1，d^0_1）$ Mesons $ Mesons。在有限的磁场，温度，等素不对称和密度下，核介质的夸克和Gluon冷凝水是通过手性SU（3）模型中的介子交换标量场获得的。培养基属性改变了核培养基的标量和矢量密度，而这种变化反映了中等内质量和自旋1 $ d $介子的衰减常数。我们通过比较QCD和规则中的现象学方面的操作员产品扩展（OPE）来计算这些可观察到的物品。在结果中，我们观察到有关磁场的带电矢量和轴向矢量$ d $介子的正质量转移。对于中性矢量（轴向矢量）$ d $介子，我们观察到负（正）质量转移是磁场的函数。在应用程序部件中，我们通过使用$^3p_0 $型号来计算流程中的中间衰减宽度$ d^* _ s $（2715/2860）$ \ rightarrow $ $ $ d^* k $。中等效果通过$ d^*$和$ k $梅森的中等内部质量合并。
We observed the impact of finite magnetic field on the in-medium mass and decay constant of isospin averaged vector $D^*(D^{*^+},D^{*^0})$ and axial-vector $D_1(D^+_1, D^0_1)$ mesons. The quark and gluon condensates of the nuclear medium at finite magnetic field, temperature, isospin asymmetry, and density have been obtained by the meson exchange scalar fields within the chiral SU(3) model. The medium attributes modify the scalar and vector density of nuclear medium and this variation reflects in the in-medium mass and decay constant of spin 1 $D$ mesons. We calculate these observables by comparing the Operator Product Expansion (OPE) and the phenomenological side in the QCD Sum Rules. In the results, we observed a positive mass shift for charged vector and axial-vector $D$ mesons with respect to magnetic field. For neutral vector (axial-vector) $D$ mesons we observed negative (positive) mass shift as a function of magnetic field. In the application part, we calculate the in-medium partial decay width of the process $D^*_s$(2715/2860) $\rightarrow$ $D^* K$ by using $^3P_0$ model. The in-medium effects are incorporated through the in-medium masses of $D^*$ and $K$ mesons.
