Garchinger Maier-Leibnitz-Kolloquium: One Single Born-Oppenheimer Effective Theory to rule all Exotics

by Dr Abhishek Mohapatra (Physik Department T30f, TUM)

Thursday Jun 27, 2024, 4:15 PM → 5:15 PM Europe/Berlin

Lecture Hall, ground floor (west) (LMU building, Am Coulombwall 1, campus Garching)

The discovered XYZ exotic hadronic states with two heavy quarks constitute one of the most important open problems in strong interaction theory. In this talk, I show that an effective field theory derived from QCD, the Born Oppenheimer effective field theory (BOEFT), can describe exotics of any composition. I show the results of the coupled Schrödinger equations that describe hybrids, tetraquarks, pentaquarks, doubly heavy baryons, and quarkonia at leading order, including also nonadiabatic terms. Additionally, I also present the results for the predicted multiplets  corresponding to selection rules, and expressions for the nonperturbative gauge-invariant correlators that are the input of the BOEFT: static energies, generalized Wilson loops, glue-lumps, and adjoint mesons that should be calculated by the QCD lattice simulations.

Hybrid access via ZOOM:
https://lmu-munich.zoom.us/j/98457332925?pwd=TWc3V1JkSHpyOTBPQVlMelhuNnZ1dz09
Meeting ID: 984 5733 2925
Passcode: 979953

kolloquium-27-06-24.pdf