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arXiv 1808.04404nucl-thhep-ph
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外磁场作用下$K^0$和$ϕ$介子的介质性质

In medium properties of $K^0$ and $ϕ$ mesons under an external magnetic field

R. M. Aguirre

摘要:

计算了强子介质中K介子和$ϕ$介子的单圈极化插入随场强和重子密度的变化。为此目的,一个有效的手征模型的强子相互作用,补充了一个唯象的$K-ϕ$相互作用。带电粒子的传播子包含了与诱导量子朗道能级的磁场耦合的全部效应。因此,在zeta函数正则化方案内定义真空图。的有效质量以及衰变宽度的物质密度和磁场强度的函数进行了介绍和检查。

英文摘要:

The one loop polarization insertions for the kaon and the $ϕ$ mesons are evaluated in a hadronic medium as functions of the field intensity and the baryonic density. For this purpose an effective chiral model of the hadronic interaction is used, supplemented with a phenomenological $K-ϕ$ interaction. The propagators of the charged particles include the full effect of the coupling to the magnetic field which induces the quantum Landau levels. Consequently, the vacuum diagrams are defined within a zeta function regularization scheme. The effective masses as well as the decay widths are introduced and examined as functions of matter density and the magnetic intensity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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