Speaker
André Torcato
(LIP/IST Lisbon)
Description
We report progress on calculations of the heavy-light baryons $\Sigma_c$ and $\Lambda_c$ and their excitations with $J^P=1/2^+$ and $3/2^+$ using functional methods. The three-quark Faddeev equations are reduced to two-body equations by employing a covariant quark-diquark approach. The interaction amounts to a quark exchange between quarks and effective diquarks, and the ingredients are determined via a rainbow-ladder truncation. A partial-wave analysis reveals the presence of orbital angular momentum components in terms of p waves, which are non-relativistically suppressed. A diquark contribution analysis reveals the distribution of scalar and axialvector diquarks, of equal and unequal flavors, in the heavy-light baryon spectrum.
Primary authors
Dr
Ana Arriaga
(LIP/FCUL Lisbon)
André Torcato
(LIP/IST Lisbon)
Dr
Gernot Eichmann
(UniGraz)
Dr
M. T. Peña
(LIP/IST Lisbon)
