论文标题
$ ϕ $梅森质量和奇怪的野蛮物质的衰减宽度
$ϕ$ meson mass and decay width in strange hadronic matter
论文作者
论文摘要
在热不对称奇怪的野蛮物质中，$ ϕ $梅森的中等质量和衰减宽度是使用有效的拉格朗日方法计算的，$ ϕ $ $ k \ bar k $相互作用。 $ k \ bar k $回路对$ ϕ $ meson自我能源的中等贡献是由使用手性su（3）模型评估的培养基修改Kaon和Antikaon质量计算的。为了处理紫外线的差异，我们将自能源与偶极外形的循环积分正规化，并给出截止质量的结果，$λ_c$ = 3 GEV。在手性模型计算中，对于奇怪的问题，我们发现kaons和抗ka的质量随着男性气密密度的增加而减小，而有限温度会导致质量增加。我们观察到，中等内的$ ϕ $梅森质量随着男性循环密度而缓慢降低，而衰减宽度迅速增加。本研究支持的结果在文献中结果表明质量的下降很小，并且衰减宽度的宽广宽大。在不对称的奇怪的野蛮物质中，对$ ϕ $介子的研究可能与压缩的奇怪的重型物质和实验性可观察物（例如Dilepton Spectra）有关，这可能是由GSI的未来公平设施中的实验造成的。
The in-medium mass and decay width of the $ϕ$ meson in the hot asymmetric strange hadronic matter are calculated using an effective Lagrangian approach for $ϕ$ $K\bar K$ interaction. The in-medium contributions of $K \bar K$ loop to the $ϕ$ meson self-energy are computed by the medium modified kaon and antikaon mass which is evaluated using the chiral SU(3) model. To deal with the ultraviolet divergence, we regularize the loop integral of self-energy with a dipole form factor, and present the results for cut-off mass, $Λ_c$=3 GeV. In chiral model calculations, for strange matter, we find that the mass of kaons and antikaons decreases with the increase in baryonic density whereas the finite temperature causes an increase in the mass. We observed that the in-medium $ϕ$ meson mass decreases slowly with baryonic density whereas the decay width increases rapidly. The results in the present investigation support result in the literature which indicate a small downward shift in mass and a large broadening in the decay width. In the asymmetric strange hadronic matter, the study of the $ϕ$ mesons can be relevant for the compressed strange baryonic matter and experimental observables such as dilepton spectra which can result from the experiments in the future FAIR facility at GSI.
