Interpretation of the Theta+ as an isotensor pentaquark with weakly decaying partners
Journal Article
·
· Physics Letters, (Section) B
OSTI ID:836920
The {Theta}{sup +}(1540), recently observed at LEPS, DIANA and CLAS, is hypothesized to be an isotensor resonance. This implies the existence of a multiplet where the {Theta}{sup ++}, {Theta}{sup +} and {Theta}{sup 0} have isospin-violating strong decays, and the {Theta}{sup +++} and {Theta}{sup -} have weak decays and so are long-lived. Production mechanisms for these states are discussed. The J{sup P} assignment of the {Theta} is most likely 1/2{sup -} or 3/2{sup -} or 5/2{sup -}.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 836920
- Report Number(s):
- JLAB-THY-03-141; DOE/ER/40150-3162; hep-ph/0307019; PYLBAJ; TRN: US0500840
- Journal Information:
- Physics Letters, (Section) B, Vol. 570; Other Information: PBD: 25 Sep 2003; ISSN 0370-2693
- Country of Publication:
- United States
- Language:
- English
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