Speaker
Ishara Fernando
(University of Virginia)
Description
Baryon Chiral Perturbation Theory (BChPT) and the 1/Nc expansion provide systematic frameworks for the strong interactions at low energy. A combined framework of both expansions has been developed and applied for baryons with three light-quark-flavors. The small scale expansion of the combined approach is identified as the ξ-expansion, in which the power counting of the expansions is linked according to O(p) = O(1/Nc) = O(ξ). Results obtained from applying the combined framework to baryon masses, sigma terms and vector & axial-vector currents in SU(3) will be discussed in this talk.
Primary authors
Ishara Fernando
(University of Virginia)
Prof.
Jose Goity
(Hampton University & Jefferson Lab)
