Norberto Scoccola, "Aspects of Excited Baryon Phenomenology in the 1/Nc expansion of QCD"

miércoles 16 feb. 2022 11:30 → 13:00 Europe/Madrid

4-4-4426 - Seminari Física Teòrica (Campus Burjassot)

Author: Prof. Norberto Scoccola

Affiliation: Investigador de la Comisión Nacional de Energía Atómica(CNEA) y del Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina)

Summary: We report on the application of the 1/N𝑐 expansion of QCD to the description of the properties of non‐strange excited baryons belonging to the [70, 1⎯]‐plet. In particular, we present the results of an improved determination of the corresponding mixing angles obtained by performing a simultaneous fit of masses and strong decay widths. We find 𝜃1 = 0.47±0.06 and 𝜃3 = 2.74±0.07. These values are within the range of those determined in previous non‐global analyses but have smaller uncertainties.

 

This Seminar has received funding/support from the Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital under the Research Project "Understanding non-perturbative Phenomena in fundamental physics" (PROMETEO/2021/083).