Interpretation of the Θ+ as an isotensor pentaquark with weakly decaying partners

被引：98

作者：

Capstick, S ^{[1
]}

Page, PR

Roberts, W

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[3] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA

[4] Thomas Jefferson Natl Accelerator Facil, Theory Grp, Newport News, VA 23606 USA

来源：

PHYSICS LETTERS B | 2003年 / 570卷 / 3-4期

关键词：

pentaquark; isotensor; weak decay;

D O I：

10.1016/j.physletb.2003.08.010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Theta(+)(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(++), Theta(+) and Theta(0) have isospin-violating strong decays, and the Theta(+++) and Theta(-) have weak decays and so are long-lived. Production mechanisms for the weakly-decaying states are discussed. The J(P) assignment of the Theta is most likely 1/2(-) or 3/2(-). (C) 2003 Published by Elsevier B.V.

引用

页码：185 / 190

页数：6

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