Author:
Wei 魏 Minghua 明华,Huang 黄 Mei 梅
Abstract
Abstract
Vorticities in heavy-ion collisions (HICs) are supposed to induce spin alignment and polarization phenomena of quarks and mesons. In this work, we analyze the spin alignment of vector mesons ϕ and ρ induced by rotation from quark dynamics in the framework of the Nambu-Jona-Lasinio (NJL) model. The rotating angular velocity induces mass splitting of spin components for vector
mesons
. This behavior contributes to the spin alignment of vector mesons
in an equilibrium medium and naturally explains the negative deviation of
for vector mesons. Incidentally, the positive deviation of
under the magnetic field can also be easily understood from quark dynamics.
Funder
the start-up funding from University of Chinese Academy of Sciences
Strategic Priority Research Program of Chinese Academy of Sciences
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
4 articles.
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