Quarkonium radiative decays from the hadronic Paschen-Back effect
High Energy Physics - Phenomenology
2018-09-28 v2 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
Abstract
We study the radiative (E1 and M1) decays of P-wave quarkonia in a strong magnetic field based on the Lagrangian of potential nonrelativistic QCD. To investigate their properties, we implement a polarized wave function basis justified in the Paschen-Back limit. In a magnetic field stronger than the spin-orbit coupling, the wave functions of the P-wave quarkonia are drastically deformed by the Hadronic Paschen-Back effect. Such deformation leads to the anisotropy of the direction of decays from the P-wave quarkonia. The analytic formulas for the radiative decay widths in the nonrelativistic limit are shown, and the qualitative decay properties are discussed.
Keywords
Cite
@article{arxiv.1805.09787,
title = {Quarkonium radiative decays from the hadronic Paschen-Back effect},
author = {Sachio Iwasaki and Kei Suzuki},
journal= {arXiv preprint arXiv:1805.09787},
year = {2018}
}
Comments
11 pages, 1 figure, 5 tables; published version