Masses of constituent quarks confined in open bottom hadrons
Abstract
We apply color-spin and flavor-spin quark-quark interactions to the meson and baryon constituent quarks, and calculate constituent quark masses, as well as the coupling constants of these interactions. The main goal of this paper was to determine constituent quark masses from light and open bottom hadron masses, using the fitting method we have developed and clustering of hadron groups. We use color-spin Fermi-Breit (FB) and flavor-spin Glozman-Riska (GR) hyperfine interaction (HFI) to determine constituent quark masses (especially b quark mass). Another aim was to discern between the FB and GR HFI because our previous findings had indicated that both interactions were satisfactory. Our improved fitting procedure of constituent quark masses showed that on average color-spin (FB) HFI yields better fits. The method also shows the way how the constituent quark masses and the strength of the interaction constants appear in different hadron environments.
- Publication:
-
Modern Physics Letters A
- Pub Date:
- December 2014
- DOI:
- 10.1142/S0217732314502022
- arXiv:
- arXiv:1405.7177
- Bibcode:
- 2014MPLA...2950202B
- Keywords:
-
- Potential models;
- hadron mass models and calculations;
- bottom baryons;
- bottom mesons;
- 12.39.Pn;
- 12.40.Yx;
- 14.20.Mr;
- 14.40.Nd;
- Potential models;
- Hadron mass models and calculations;
- Bottom baryons;
- Bottom mesons;
- High Energy Physics - Phenomenology
- E-Print:
- 15 pages, 6 tables, 1 figure. Accepted for publication in Mod. Phys. Lett. A