Charge asymmetry in electron/positron energy loss in nuclear Bremsstrahlung

Journal of High Energy Physics

Roman N. Lee¹  Andrey F. Pikelner² 

[1] Budker Institute of Nuclear Physics, Lavrentieva pr. 11, 630090, Novosibirsk, Russia;Joint Institute for Nuclear Research, Joliot-Curie, 6, 141980, Dubna, Russia;

关键词: NLO Computations;   

DOI  :  10.1007/JHEP12(2021)054

来源: Springer

【 摘 要 】

We calculate the leading Coulomb correction to the Bremsstrahlung energy loss in the electron-nucleus collisions for arbitrary energy of the incoming particle. This correction determines the charge asymmetry, i.e., the difference of electron and positron energy loss. The result is presented in terms of the classical polylogarithms Li2 and Li3. We use modern multiloop methods based on the IBP reduction and on the differential equations for master integrals. We provide both the threshold and the high-energy asymptotics of the found asymmetry and compare them with the available results.

【 授权许可】

CC BY