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Sep 23, 2023

Researchers make progress in vector meson spin physics

Posted by in category: particle physics

A research team led by Prof. Wang Qun from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has made significant progress in the theoretical study of vector meson spin physics, specifically regarding the intriguing behavior of ϕ mesons generated during collisions between gold nuclei.

Their results, published in Physical Review Letters, titled “Spin Alignment of Vector Mesons in Heavy-Ion Collisions,” represent a that challenges conventional theoretical models.

Vector fields are an effective representation of strong interactions between exotic . In the hadronization phase of relativistic heavy-ion collisions, where chiral symmetry is spontaneously broken, the strongly interacting matter can be described by quarks and by the SU pseudo-Goldstone boson field surrounding the quarks.

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