发表机构
Tianjin University（天津大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究强子结构对强子对撞中ALP辐射的影响，发现弹性极点贡献被抑制约三个数量级，且分辨辐射对重夸克耦合高度敏感。
AI 中文摘要
我们研究了强子结构和夸克味耦合如何塑造强子对撞中轴子类粒子（ALP）的辐射。对于弹性极点，若赝标量形状因子在大$Q^2$下按$1/Q^2$的正幂次衰减，则固定动量分数下的虚度积分在紫外有限，从而消除了点粒子束能量对数。π介子极点和格点QCD同位旋基准将过程加权的弹性贡献相对于点粒子结果抑制了约三个数量级。与同一领先低能核子源匹配的两组系数集产生的过程加权分辨领先对数相差四个数量级，展示了分辨ALP辐射对重夸克耦合配置的敏感性。
英文摘要
We investigate how hadron structure and quark-flavor couplings shape axion-like particle (ALP) radiation in hadron collisions. For the elastic pole, the virtuality integral is ultraviolet finite at fixed momentum fraction if the pseudoscalar form factor falls as a positive power of $1/Q^2$ at large $Q^2$, eliminating the point-particle beam-energy logarithm. Pion-pole and lattice-QCD isovector benchmarks suppress the process-weighted elastic contribution by roughly three orders of magnitude relative to the point-particle result. Two coefficient sets matched to the same leading low-energy nucleon source yield process-weighted resolved leading logarithms differing by four orders of magnitude, demonstrating the sensitivity of resolved ALP radiation to heavy-quark coupling configurations.
Comments8 pages, 2 figures
