Title

Global Aspects of the Scalar Meson Puzzle

Author(s)/Creator(s)

Joseph Schechter, Department of Physics, Syracuse University, Syracuse, NYFollow
Amir H. Fariborz, State University of New York Institute of Technology
Renata Jora, INFN Roma

Document Type

Article

Date

2-17-2009

Language

English

Disciplines

Physics

Description/Abstract

A generalized linear sigma model for low energy QCD is employed to study the quark structure of eight low lying scalar isomultiplets as well as eight low lying pseudoscalar isomultiplets. The model, building on earlier work, assumes the possible mixing of quark anti-quark states with others made of two quarks and two antiquarks. No {\it a priori} assumption is made about the quark contents of the states, which emerge as predictions. An amusing and contrasting pattern for the quark structure is found; the lighter conventional pseudoscalars are, as expected, primarily of two quark type whereas the lighter scalars have very large four quark admixtures. The new feature of the present paper compared to earlier ones in this series involves the somewhat subtle and complicated effects of SU(3) flavor breaking. They do not alter the general pattern of two quark vs. four quark mixing obtained in the SU(3)symmetric case but, of course, give a more detailed picture.

Additional Information

More information available at http://arxiv.org/abs/0902.2825

Recommended Citation

Schechter, Joseph; Fariborz, Amir H.; and Jora, Renata, "Global Aspects of the Scalar Meson Puzzle" (2009). Physics - All Scholarship. 257.
https://surface.syr.edu/phy/257

Source

Harvested from Arxiv.org

Creative Commons License

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