Title

Hyperfine Splitting of Low-Lying Heavy Baryons

Author(s)/Creator(s)

Joseph Schechter, Department of Physics, Syracuse University, Syracuse, NYFollow
Masayasu Harada, Syracuse University
Asif Qamar, Syracuse UniversityFollow
Francesco Sannino, Syracuse University and Dipartimento di Scienze Fisiche & Istituto Nazionale di Fisica Nucleare Mostra D’Oltremare Pad. 19Follow
Herbert Weigel, Tubingen University

Document Type

Article

Date

12-11-1997

Language

English

Disciplines

Physics

Description/Abstract

We calculate the next-to-leading order contribution to the masses of the heavy baryons in the bound state approach for baryons containing a heavy quark. These 1/N_C corrections arise when states of good spin and isospin are generated from the background soliton of the light meson fields. Our study is motivated by the previously established result that light vector meson fields are required for this soliton in order to reasonably describe the spectrum of both the light and the heavy baryons. We note that the inclusion of light vector mesons significantly improves the agreement of the predicted hyperfine splitting with experiment. A number of aspects of this somewhat complicated calculation are discussed in detail.

Additional Information

Modification of the discussion on the numerical results, version to be published in Nucl. Phys. A More information available at http://arxiv.org/abs/hep-ph/9703234

Recommended Citation

Schechter, Joseph; Harada, Masayasu; Qamar, Asif; Sannino, Francesco; and Weigel, Herbert, "Hyperfine Splitting of Low-Lying Heavy Baryons" (1997). Physics - All Scholarship. 303.
https://surface.syr.edu/phy/303

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.