论文标题
磁化核物质中的魅力介子 - （反）磁催化的影响
Charm mesons in magnetized nuclear matter -- effects of (inverse) magnetic catalysis
论文作者
论文摘要
我们研究了伪尺度$（d，{\ bar d}，d_s^{\ pm}）$和向量$（d^*，\ bar {d}^*，d_s^{*{*\ pm}）$，在同种型核对海中的开放式Charm Mesons abemmetric Magnet-Matection cartive，carting carting carting，群众用于研究$ d^* \ rightArrowdπ$的中等内部衰减宽度（$ \ bar {d}^* \ rightArrow \ rightArrow \ bar {d}π$）和$ψ（3770）\ rightArrow d \ bar d \ bar {d} $，使用$^3p_0 $模型。开放式魅力介子的中等质量是根据其与核子的标量和数字密度波动的相互作用来计算的。在磁化核物质中也考虑了核子质子和AMM的Landau能级的影响。光夸克冷凝物通过磁场进行了大量修饰，由于磁化狄拉克海的效应，导致（反）磁性催化。磁场会导致修饰，这是由于载体和载体介子的纵向成分的混合，以及对带电膜的基态能量的最低兰道水平作为点颗粒校正的贡献。对于Charmonium $ψ（3770）$，磁化狄拉克海的效果通过手性模型中的中等修改的标量DILATON FIEL $χ$纳入了质量修改。因此，获得的开放式魅力和炭介子的中等内部质量和衰减宽度应在外围超相关的沉重离子碰撞实验中产生开放式魅力膜和charmonia的重要后果，在此期望产生巨大的磁场。
We investigate the in-medium masses of the pseudoscalar $(D,{\bar D},D_s^{\pm})$, and vector $(D^*,\bar{D}^*, D_s^{*\pm})$, open charm mesons in isospin asymmetric magnetized nuclear matter, accounting for the effects of Dirac sea. The masses are used to study the in-medium partial decay widths of $D^* \rightarrow D π$ ($\bar{D}^*\rightarrow \bar{D}π$) and $Ψ(3770) \rightarrow D \bar{D}$, using the $^3P_0$ model. The in-medium masses of the open charm mesons are calculated from their interactions with the nucleons and scalar mesons within the generalized chiral effective model, in terms of the scalar and number densities of nucleons and the scalar fields fluctuations. The effects of Landau energy levels of protons and AMMs of the nucleons are also considered in the magnetized nuclear matter. The light quark condensates are modified considerably with magnetic field, leading to (inverse) magnetic catalysis due to the magnetized Dirac sea effects. The magnetic field causes modifications to occur due to the mixing of the pseudoscalar and longitudinal component of the vector mesons, along with the lowest Landau level contribution to the ground state energy of the charged mesons as point particle correction. For the charmonium state $Ψ(3770)$, the effects of the magnetized Dirac sea are incorporated to the mass modifications through the medium modified scalar dilaton field $χ$ within the chiral model. The in-medium masses and decay widths of the open charm and charmonium mesons thus obtained should have important observable consequences in the production of the open charm mesons and charmonia in peripheral ultra-relativistic heavy ion collision experiments, where huge magnetic fields are expected to be created.
