论文标题
在磁化物质中开放底部介子 - （反）磁催化的影响
Open bottom mesons in magnetized matter -- effects of (inverse) magnetic catalysis
论文作者
论文摘要
伪内cal和矢量开放式媒介（$ b $，$ \ bar {b} $，$ b_s $和$ b_s $和$ b^*$，$ \ bar {b}^*$，$ b_s^*$）的中等质量是通过在磁性核问题中研究迪拉克海（Dirac Sea）的效果。质量修饰是由于开放底部中介子与核子和标量介子的相互作用而产生的，该核子和标量介子是根据核子的标量和数量密度和标量场波动计算的。磁化狄拉克海的影响导致具有磁场标量场的巨大变化，这与光夸克冷凝物有关。观察到在带有磁场的光夸克冷凝物中有一个（还原）增强，这是一种称为（逆）磁性催化的现象。磁场对核子的费米海的贡献通过质子的底滴能水平以及核子的异常磁矩（AMMS）来考虑。考虑了最低的Landau水平对被带电的介子的额外贡献。向量的纵向组件与伪cal膜之间的自旋 - 磁场（$ b^{*||}（\ bar {b}^{*||}） - b（\ bar {b}）$ and（$ b_s^{*|| | | | s $）的质量是，他们的级别是a的，观察到磁场通过狄拉克海的效应对开放式膜的中等质量具有显着贡献，因为在不考虑这种效果的情况下对情况进行了比较。在真空中，仅由于零磁化的Dirac Sea和有限的核次弹药而获得了相当大的变化。
In-medium masses of the pseudoscalar and vector open bottom mesons ($B$, $\bar{B}$, $B_s$ and $B^*$, $\bar{B}^*$, $B_s^*$) are studied in the magnetized nuclear matter by considering the effects of Dirac sea, within the chiral effective model. The mass modifications arise due to the interactions of the open bottom mesons with the nucleons and the scalar mesons, calculated in terms of the scalar and number densities of the nucleons and the scalar fields fluctuations. The effects of the magnetized Dirac sea lead to the considerable changes in the scalar fields with magnetic field, which are related to the light quark condensates. There is observed to be a (reduction) enhancement in the light quark condensates with magnetic field, a phenomenon called (inverse) magnetic catalysis.The contribution of the magnetic field on the Fermi sea of nucleons are taken into account through the Landau energy levels of protons and anomalous magnetic moments (AMMs) of the nucleons. The additional contribution of the lowest Landau level for the charged mesons are considered. The spin-magnetic field interaction between the longitudinal component of the vector and the pseudoscalar mesons ($B^{*||}(\bar{B}^{*||})-B (\bar{B}))$ and ($B_s^{*||}-B_s$) are studied, which lead to a level repulsion between their masses with magnetic field. Magnetic fields are observed to have significant contribution on the in-medium masses of the open bottom mesons through the Dirac sea effect as comparedto the case when this effect is not considered. In vacuum, considerable changes are obtained only due to the magnetized Dirac sea at zero and finite nucleonic AMMs.
