Interpretation of the Θ+ as an Isotensor Pentaquark With Weakly Decaying Partners

Authors

Simon Capstick
Philip R. Page
Winston Roberts

Document Type

Article

Publication Date

2003

DOI

10.1016/j.physletb.2003.08.010

Publication Title

Physics Letters B

Volume

570

Issue

3-4

Pages

185-190

Abstract

The Θ⁺(1540), recently observed at LEPS, DIANA and CLAS, is hypothesized to be an isotensor resonance. This implies the existence of a multiplet where the Θ⁺⁺, Θ⁺ and Θ⁰ have isospin-violating strong decays, and the Θ⁺⁺⁺ and Θ⁻ have weak decays and so are long-lived. Production mechanisms for the weakly-decaying states are discussed. The JP assignment of the Θ is most likely 1/2⁻ or 3/2⁻.

Original Publication Citation

Capstick, S., Page, P. R., & Roberts, W. (2003). Interpretation of the Θ⁺ as an isotensor pentaquark with weakly decaying partners. Physics Letters B, 570(3–4), 185-190. doi: http://dx.doi.org/10.1016/j.physletb.2003.08.010

Repository Citation

Capstick, Simon; Page, Philip R.; and Roberts, Winston, "Interpretation of the Θ+ as an Isotensor Pentaquark With Weakly Decaying Partners" (2003). Physics Faculty Publications. 30.
https://digitalcommons.odu.edu/physics_fac_pubs/30