论文标题
真空中Kaon的光谱参数和电磁象形
Spectroscopic parameters and electromagnetic form factor of kaon in vacuum and a dense medium
论文作者
论文摘要
在真空中研究了光谱参数以及奇怪粒子kaon的电磁形状因子，并且具有有限密度的培养基。获得的真空质量和衰减常数与现有的实验结果一致，用于在[0,10] $ gev $^2 $ in Vacuuum中提取KAON电磁形外y的$ q^2 $依赖性。在$ q^2 $的较低和中间值处获得的结果与所提出的不确定性中现有的实验数据一致。 $ q^2 $在真空中的电磁形式的行为以及在[0,6] $ gev $^2 $中的间隔$ q^2 \中，与NAMBU和JONA-LASINIO（NAMBU和JONA-LASINIO的模型）的现有预测和伯特 - 盐分方程的现有预测相同，与正常的时间（适用于NJLAS）的方法非常吻合。 KAON获得的真空半径也与世界平均实验结果达成了很好的一致性。我们将分析扩展到具有较高密度的培养基，并获得质量，衰减常数，电磁形外数和半径相对于密度的行为。将某些参数的结果与其他模型和方法的现有预测进行了比较。本研究中获得的结果对于真空和致密培养基中的未来实验和理论研究都有用。
The spectroscopic parameters as well as electromagnetic form factor of the strange particle kaon are investigated in vacuum and a medium with finite density. The obtained vacuum mass and decay constant, which are consistent with the existing experimental results, are used to extract the $ Q^2 $ dependence of the kaon electromagnetic form factor in the interval $Q^2\in [0,10]$ GeV$^2$ in vacuum. The obtained results at lower and intermediate values of $ Q^2 $ are consistent with the existing experimental data within the presented uncertainties. The $ Q^2 $ behavior of the electromagnetic form factor of kaon in vacuum and in the interval $Q^2\in [0,6]$ GeV$^2$ is in a nice agreement with the existing predictions of the Lattice QCD and the solution of the Bethe-Salpeter equation for the model of Nambu and Jona-Lasinio (NJL) with proper-time regularization, as well. The obtained vacuum radius for kaon is also in a nice agreement with the world's average experimental result. We extend the analyses to a medium with higher densities and obtain the behavior of the mass, decay constant, electromagnetic form factor and radius with respect to density. The obtained results for some of the parameters are compared with the existing predictions of other models and approaches. The results obtained in the present study can be useful for future experimental and theoretical studies both in vacuum and a dense medium.
