Heavy quarkonium production in a strong magnetic field

Authors :: Machado, C. S.
Navarra, F. S.
de Oliveira, E. G.
Noronha, J.
Strickland, M.
Machado, C. S.
Navarra, F. S.
de Oliveira, E. G.
Noronha, J.
Strickland, M.
Publication Year :: 2013
Abstract: It is well known that in noncentral heavy-ion collisions a transient strong magnetic field is generated in the direction perpendicular to the reaction plane. The maximal strength of this field is estimated to be $eB \sim m^2_{\pi} \sim 0.02 \text{GeV}^2$ at the RHIC and $eB \sim 15 m^2_{\pi} \sim 0.3 \text{GeV}^2$ at the LHC. We investigate the effects of a strong magnetic field on $B$ and $D$ mesons, focusing on the changes of the energy levels and the masses of the bound states. Using the Color Evaporation Model we discuss the possible changes in the production of $J/\psi$ and $\Upsilon$.<br />Comment: 18 pages, 7 figures