Speaker
Joan Soto
(Universitat de Barcelona)
Description
We provide general formulas for the potentials at next-to-leading order in the Born-Oppenheimer effective field theory. We apply them to douby heavy baryons and obtain model independent formulas for the hyperfine splittings. Using available lattice data for the static potentials we obtain the spin average spectrum for doubly charmed and doubly bottomed baryons. We also obtain detailed results for the hyperfine splittings by modeling the spin-dependent potentials. The modeled potentials interpolate between a short distance form calculated in pNRQCD and a long distance form obtained from an effective string theory.
Primary authors
Dr
Jaume Tarrús Castellà
Joan Soto
(Universitat de Barcelona)
