发表机构
University of South Carolina（南卡罗来纳大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究矢量介子主导模型中光子与矢量介子混合，提出利用光子测量间接约束强子有效作用量中的洛伦兹和CPT破缺，并给出ρ⁰、φ和ω介子扇区约束强度分别比光子弱2、3和4个数量级。
AI 中文摘要
矢量介子主导模型描述了光子与矢量介子的混合；强子成分经常主导光子与核子的相互作用。这种混合也使得利用光子测量来检验影响矢量介子的新物理成为可能。以这种间接方式受限的新物理可能性包括强子有效作用量中潜在的洛伦兹和CPT破缺。在ρ⁰介子扇区，洛伦兹破缺系数约束的特征标度比相应的光子约束弱两个数量级，在φ矢量介子扇区弱三个数量级，在ω介子扇区弱四个数量级。
英文摘要
Vector meson dominance models describe the mixing of photons with vector mesons; the hadronic admixture frequently dominates the interactions of photons with nucleons. This mixing also makes it possible to test for new physics affecting the vector mesons using photon measurements. The possibilities for new physics to be contrained in this indirect fashion include potential Lorentz and CPT violations in the hadronic effective action. The characteristic scale of bounds on Lorentz violation coefficients in the $ρ^{0}$ meson sector is two orders of magnitude weaker than the corresponding photon bounds, three orders of magnitude weaker for $ϕ$ vector mesons, and four orders of magnitude weaker for $ω$ mesons.
Comments14 pages
