Artigo Acesso aberto Revisado por pares

Double polarization asymmetry as a possible filter for Θ+'s parity

2004; Elsevier BV; Volume: 585; Issue: 1-2 Linguagem: Inglês

10.1016/j.physletb.2004.01.073

ISSN

1873-2445

Autores

Q. Zhao, Jim Al-Khalili,

Tópico(s)

Atomic and Subatomic Physics Research

Resumo

We present an analysis of the Beam–Target double polarization asymmetry for the photoproduction of Θ+ in γn→Θ+K−. We show that this quantity can serve as a filter for the determination of the Θ+'s spin-parity assignment near threshold. It is highly selective between 1/2+ and 1/2− configurations due to dynamical reasons.

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