The photoproduction of axion-like particles (ALPs) is investigated in electron–ion (EIC) and ultraperipheral heavy ion collisions (UPCs) considering the Primakoff production from a nucleus and effective Lagrangian for ALP coupling to photons. The model is employed to calculate the integrated cross section and event numbers as a function of the ALP mass and axion-photon coupling. Predictions are shown for EICs and proton–nucleus and nucleus–nucleus in UPCs at the large hadron collider. The results show that a considerable number of events can be produced on the planned experiments, specially for low ALP masses of few GeVs. Numerical calculations are provided in the kinematic coverage of the planned machines electron ion collider, large hadron electron collider and future circular collider.

考虑到来自原子核的 Primakoff 产生和 ALP 与光子耦合的有效拉格朗日量，在电子-离子 (EIC) 和超外周重离子碰撞 (UPC) 中研究了类轴子粒子 (ALP) 的光产生。该模型用于计算作为 ALP 质量和轴子-光子耦合的函数的积分截面和事件数。在大型强子对撞机上显示了 UPC 中 EIC 和质子 - 核和核 - 核的预测。结果表明，在计划的实验中可以产生相当多的事件，特别是对于少数 GeV 的低 ALP 质量。在计划中的机器电子离子对撞机、大型强子电子对撞机和未来圆形对撞机的运动学覆盖中提供了数值计算。