Eur. Phys. J. A (2016) 52: 90
https://doi.org/10.1140/epja/i2016-16090-5

Regular Article - Theoretical Physics

Magnetic properties of ground-state mesons

Vilnius University Institute of Theoretical Physics and Astronomy, A. Goštauto 12, LT-01108, Vilnius, Lithuania

^* e-mail: vytautas.simonis@tfai.vu.lt

Received: 12 December 2015
Accepted: 5 February 2016
Published online: 19 April 2016

Abstract

Starting with the bag model a method for the study of the magnetic properties (magnetic moments, magnetic dipole transition widths) of ground-state mesons is developed. We calculate the M1 transition moments and use them subsequently to estimate the corresponding decay widths. These are compared with experimental data, where available, and with the results obtained in other approaches. Finally, we give the predictions for the static magnetic moments of all ground-state vector mesons including those containing heavy quarks. We have a good agreement with experimental data for the M1 decay rates of light as well as heavy mesons. Therefore, we expect our predictions for the static magnetic properties (i.e., usual magnetic moments) to be of sufficiently high quality, too.