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Relativistic spin dynamics for vector mesons

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成果类型:
期刊论文
作者:
Xin-Li Sheng;Lucia Oliva;Zuo-Tang Liang;Qun Wang;Xin-Nian Wang
作者机构:
INFN-Firenze, Via Giovanni Sansone, 1, 50019 Sesto Fiorentino FI, Italy
Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan, 430079, China
Department of Physics and Astronomy “Ettore Majorana,” University of Catania, Via S. Sofia 64, I-95123 Catania, Italy
INFN Sezione di Catania, Via S. Sofia 64, I-95123 Catania, Italy
[Zuo-Tang Liang] Key Laboratory of Particle Physics and Particle Irradiation (MOE), Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong 266237, China
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2024
卷:
109
期:
3
页码:
036004
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
We propose a relativistic theory for spin density matrices of vector mesons based on Kadanoff-Baym equations in the closed-time-path formalism. The theory puts the calculation of spin observables such as the spin density matrix element ρ00 for vector mesons on a solid ground. Within the theory we formulate ρ00 for ϕ mesons into a factorization form in separation of momentum and spacetime variables. We argue that the main contribution to ρ00 at lower energies should be from the ϕ fields that can polarize the strange quark and antiquark in t...

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