6 papers
Baryon-Meson Loop Effects on the Spectrum of Non Strange Baryons
Danielle Morel, Simon Capstick
Corrections to the masses of baryons from baryon-meson loops can induce splittings between baryons which are comparable to those arising from the residual interactions between the…
Key Issues in Hadronic Physics
Simon Capstick, Steven Dytman, Roy Holt +3
A group of fifty physicists met in Duck, NC, Nov. 6-9 to discuss the current status and future goals of hadronic physics. The main purpose of the meeting was to define the field by…
Quark Models of Baryon Masses and Decays
Simon Capstick
The description of baryon resonance masses and decays in the constituent quark model is outlined, with emphasis on the potential-model approach combined with the 3P0 pair-creation…
Pion Cloud Contributions to the Proton's Weak Magnetic Form Factor
Simon Capstick, D. Robson
We report on the contributions to the nucleon weak magnetic and electric form factors arising from isospin-breaking form factors. The relativized quark model used in the calculatio…
Baryon Current Matrix Elements in a Relativistic Quark Model
Simon Capstick, B. D. Keister
Current matrix elements and observables for electro- and photo-excitation of baryons from the nucleon are studied in a light-front framework. Relativistic effects are examined by c…
Baryon Magnetic Moments in a Relativistic Quark Model
Simon Capstick, B. D. Keister
Magnetic moments of baryons in the ground-state octet and decuplet are calculated in a light-front framework. We investigate the effects of quark mass variation both in the current…