Электронный каталог

Статья

Radzhabov, A.E.
The Light-by-Light Contribution to the Anomalous Magnetic Moment of Muon within the Nonlocal Chiral Quark Models / A.E.Radzhabov, A.S.Zhevlakov // Физика элементарных частиц и атомного ядра. – 2026. – Т. 57, № 5. – P. 1082. – URL: https://www1.jinr.ru/Pepan/v-57-5/47_Radzhabov_ann.pdf.

A brief review of recent nonlocal quark model calculations of the hadronic light-by-light contribution to the muon’s anomalous magnetic moment is presented. To the leading order in 1/N&sub(c), the contribution consists of a quark box diagram supplemented by resonance exchanges. A key point in these calculations is that the two-photon transition form factors of the mesons in the model depend not only on the photons’ virtualities but also on that of the meson. Consequently, the quark box diagram provides the correct OPE asymptotic. It is shown that the model’s result is quite stable when the model is extended to include spin-1 particles.



Спец.(статьи,препринты) = С 324.1б - Сильные взаимодействия. Электромагнитная структура частиц. Алгебра токов. Киральные теории. Теория Редже$
ОИЯИ = ОИЯИ (JINR)2026