QCD sum rules for magnetically induced mixing between $\eta_c$ and $J/\psi$
High Energy Physics - Phenomenology
2014-10-22 v2 High Energy Physics - Lattice
Nuclear Theory
Abstract
We investigate the properties of charmonia in strong magnetic fields by using QCD sum rules. We show how to implement the mixing effects between and on the basis of field-theoretical approaches, and then show that the sum rules are saturated by the mixing effects with phenomenologically determined parameters. Consequently, we find that the mixing effects are the dominant contribution to the mass shifts of the charmonia in strong magnetic fields.
Keywords
Cite
@article{arxiv.1406.4586,
title = {QCD sum rules for magnetically induced mixing between $\eta_c$ and $J/\psi$},
author = {Sungtae Cho and Koichi Hattori and Su Houng Lee and Kenji Morita and Sho Ozaki},
journal= {arXiv preprint arXiv:1406.4586},
year = {2014}
}
Comments
5 pages, 2 figures. Some descriptions improved. Published in PRL