Электронный каталог

Статья

Radzhabov, A.E.
Light-by-Light Contribution to the Muon Anomalous Magnetic Moment from the Axial-Vector Mesons Exchanges within the Nonlocal Quark Model / A.E.Radzhabov, A.S.Zhevlakov, A.P.Martynenko, F.A.Martynenko // Physical Review D [Electronic resource]. – 2023. – Vol.108, No.1. – P.014033. – URL: https://doi.org/10.1103/PhysRevD.108.014033. – Bibliogr.:89.

The contribution of axial-vector mesons to the muon’s anomalous magnetic moment through a light-by-light process is considered within a nonlocal quark model. The model is based on a four-quark interaction with scalar-pseudoscalar and vector–axial-vector sectors. While the transverse component of the axial-vector corresponds to a spin-1 particle, the unphysical longitudinal component is mixed with a pseudoscalar meson. The model parameters are refitted to the pion properties in the presence of π−a1 mixing. The obtained estimation for the light-by-light contribution of a1+f1 mesons is (3.6±1.8)×10−11.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 323.5 - Теория взаимодействия частиц при высоких энергиях$
Спец.(статьи,препринты) = С 324.1б - Сильные взаимодействия. Электромагнитная структура частиц. Алгебра токов. Киральные теории. Теория Редже$
Бюллетени = 51/023