期刊论文

Sheng, XL

英文

EUROPEAN PHYSICAL JOURNAL C

1434-6044

2024

84

3

1-13

10.1140/epjc/s10052-024-12643-7

National Key Research and Development Program of China [2022YFA1604900]; National Key Research and Development Program of China [12275104 11890711, 11890710]; National Natural Science Foundation of China (NSFC) [2021M701369]; China Postdoctoral Science Foundation

本校为第一且通讯机构

Based on the Nambu–Jona–Lasinio (NJL) model, we develop a framework for calculating the spin alignment of vector mesons and applied it to study $$\phi $$ mesons in a magnetic field. We calculate mass spectra for $$\phi $$ mesons and observe mass splitting between the longitudinally polarized state and transversely polarized states. The $$\phi $$ meson in a thermal equilibrium system is preferred to occupy the state with spin $$\lambda =0$$ than those with spin $$\lambda =\pm 1$$ , because...