Holographic Picture of Heavy Vector Meson Melting

Understand

The fraction of heavy vector mesons produced in a heavy ion collision, as compared to a proton proton collision, serves as an important indication of the formation of a thermal medium, the quark gluon plasma.

• This sort of analysis strongly depends on understanding the thermal effects of a medium like the plasma on the states of heavy mesons.
• In particular, it is crucial to know the temperature ranges where they undergo a thermal dissociation, or melting.
• AdS/QCD models are know to provide an important tool for the calculation of hadronic masses, but in general are not consistent with the observation that decay constants of heavy vector mesons decrease with excitation level.