Speaker
Description
Heavy flavor production, both open heavy flavor and quarkonium, has been studied in a variety of systems, particularly in $p+p$, $p+A$, and $A+A$ collisions at RHIC and the LHC. The new sPHENIX detector will make important contributions to $\Upsilon$ production as well as heavy flavor jets at RHIC. The LHC experiments include both collider data and fixed-target environments. Heavy flavor production will also be studied in new and proposed lower energy fixed-target experients. Finally, heavy flavor production will be an integral part of the EIC physics program. This talk will discuss heavy flavor production with an emphasis on cold nuclear matter effects including nuclear modifications of the parton densities, multiple scattering in the medium, nucleon absorption (for quarkonium), and intrinsic charm. In particular, there have been tantalizing hints of its existence in recent years. Several experiments, either taking data or planned, could proivde definitive evidence in the next few years, see Refs. [1-3]. This talk will also introduce a new DOE topical collaboration in nuclear theory, HEFTY, that will address all aspects of heavy flavor production over the next 5 years.
[1] R. Vogt, Limits on Intrinsic Charm Production from the SeaQuest Experiment, Phys. Rev. C 103 (2021), 035204.
[2] R. Vogt, Contribution from Intrinsic Charm Production to Fixed-Target
Interactions at the LHC, to be submitted.
[3] R. Vogt, Energy dependence of intrinsic charm production: Determining the best energy forobservation, Phys. Rev. C 106 (2022) 025201.
This work was performed under the auspices of the US DoE by LLNL under
Contract DE-AC52-07NA27344 and supported by LDRD projects 21-LW-034 and
23-LW-036. This work has also been supported by the US Department of Energy, Office of Science, Office of Nuclear Physics through the Topical Collaboration in Nuclear Theory award Heavy-Flavor Theory (HEFTY) for QCD Matter.
