26 July 2026 to 1 August 2026
University of Maryland, College Park
US/Eastern timezone

Precise calculation of the low-lying charmed baryon spectrum on CLS ensembles

31 Jul 2026, 14:20
20m
Pyon Su (Adele H. Stamp Student Union)

Pyon Su

Adele H. Stamp Student Union

3972 Campus Dr, College Park, MD 20742
Contributed talk Hadronic and nuclear spectrum and interactions Hadronic and nuclear spectrum and interactions

Speaker

Archana Radhakrishnan

Description

We determine the spectra of singly- and doubly-charmed baryons on $N_f=2+1$ ensembles generated by the Coordinated Lattice Simulations (CLS) effort with non-perturbatively improved Wilson fermions. The baryon masses are calculated along three trajectories in the plane spanned by the light and strange quark masses, two of which intersect close to the physical point, and a third approaching the SU(3) chiral limit. The pion mass varies from $420\,$MeV down to $130\,$MeV. The continuum limit is taken using several lattice spacings ranging from $a \approx 0.10\,$fm to $0.04\,$fm, while spatial volumes are kept large enough to suppress finite-size effects. The ground state masses in the spin-$1/2$ and spin-$3/2$ channels are extracted and compared with experimental measurements and previous lattice determinations.

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