The $J=3/2$ $Θ^*$ partner to the $Θ(1540)$ baryon

Details The $J=3/2$ $Θ^*$ partner to the $Θ(1540)$ baryon The $J=3/2$ $Θ^*$ partner to the $Θ(1540)$ baryon

2003-11-20

arxiv.org/abs/hep-ph/0311258v2

Phys.Lett. B583 (2004) 278-284

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version accepted by PLB, minor corrections emphasising difference with respect to Chiral Soliton Models

Scientific paper

10.1016/j.physletb.2004.01.013

If the exotic baryon $\Theta(1540)$ is $udud\bar{s}$ with $J^P =
{1/2}^+$, we predict that there is a \10bar with $J^P = {3/2}^+$ containing a
$\Theta^*(1540-1680)$. The width $\Gamma(\Theta^* \to KN)$ is at least a factor
of three larger than $\Gamma(\Theta)$. The possibilities of $\Theta^* \to
KN\pi$ or $\Theta \gamma$ via $M1$ and $E2$ multipoles are discussed.

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