Heavy quarkonia decay widths in magnetized matter – effects of magnetic catalysis and PV mixing

The study of in-medium properties of the heavy quarkonium states (charmonium and bottomonium) in magnetized matter has relevance for ultra-relativistic peripheral heavy ion collision experiments. We study the masses of the heavy flavour mesons in magnetized nuclear matter using a chiral effective model. The heavy quarkonia masses are calculated from medium modification of a scalar dilaton field, which incorporates the broken scale invariance of QCD and mimics the gluon condensates of QCD. The effects of magnetic catalysis and PV mixing are observed to be quite significant on the masses and hence on the partial decay widths of heavy quarkonium states to open heavy flavour meson pairs, at high values of the magnetic field. These should show in the observables, viz, their yields in the peripheral ultra-relativistic heavy ion collision experiments, e.g., at LHC and RHIC, where the estimated magnetic field produced is huge.