Is the Y (2175) a Strangeonium Hybrid Meson?

Authors

Jason Ho, Dordt UniversityFollow
R. Berg, University of Saskatchewan
T. G. Steele, University of Saskatchewan
W. Chen, Sun Yat-sen University
D. Harnett, University of the Fraser Valley

Document Type

Article

Publication Date

8-12-2019

Department

Engineering

Keywords

quantum chromodynamics, exotic mesons, hybrid mesons, mass

Abstract

QCD Gaussian sum rules are used to explore the vector (JPC=1−−) strangeonium hybrid interpretation of the Y(2175). Using a two-resonance model consisting of the Y(2175) and an additional resonance, we find that the relative resonance strength of the Y(2175) in the Gaussian sum rules is less than 5% that of a heavier 2.9 GeV state. This small relative strength presents a challenge to a dominantly hybrid interpretation of the Y(2175).

Comments

Access on publisher's site:

https://journals.aps.org/prd/pdf/10.1103/PhysRevD.100.034012

Source Publication Title

Physical Review D

Publisher

American Physical Society

Volume

100

Issue

3

First Page

034012

DOI

10.1103/PhysRevD.100.034012

Recommended Citation

Ho, J., Berg, R., Steele, T. G., Chen, W., & Harnett, D. (2019). Is the Y (2175) a Strangeonium Hybrid Meson?. Physical Review D, 100 (3), 034012. https://doi.org/10.1103/PhysRevD.100.034012