Topical Seminar: The baryon-baryon interaction with unphysical quark masses

por Sr. Marc Illa (Universitat de Barcelona, ICCUB)

viernes 12 mar. 2021 11:00 → 12:30 Europe/Madrid

Online

The difference in the level of understanding between baryonic systems containing strangeness and the usual nuclear matter is so large due to the scarcity of experimental data. This limits the constraints that can be put on the low-energy coefficients appearing in the effective field theory (EFT) Lagrangian describing the interaction of two non-relativistic octet baryons. Trying to bridge this gap is lattice QCD, a high-demanding numerical approach to solve the complex dynamics of strongly-interacting systems. In this talk, I will present the results obtained by the NPLQCD collaboration for two octet-baryon systems, with strangeness ranging from 0 to -4, at two sets of quark masses that are heavier than those in nature. The findings point to interesting symmetries observed in hypernuclear forces as predicted in the limit of QCD with a large number of colors.

IFIC_Illa.pdf