English

Study the exotic $\Theta^+$ in polarized photoproduction reactions

High Energy Physics - Phenomenology 2007-05-23 v1 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Abstract

We present an analysis of a Beam-Target double polarization asymmetry in γnΘ+K\gamma n\to \Theta^+ K^-. We show that this quantity can serve as a filter for the determination of the Θ+\Theta^+'s spin-parity assignment near threshold. It is highly selective between 1/2+1/2^+ and 1/21/2^- configurations due to dynamical reasons.

Keywords

Cite

@article{arxiv.hep-ph/0502033,
  title  = {Study the exotic $\Theta^+$ in polarized photoproduction reactions},
  author = {Qiang Zhao},
  journal= {arXiv preprint arXiv:hep-ph/0502033},
  year   = {2007}
}

Comments

Plenary talk at NSTAR2004, Proceedings of the Workshop on the Physics of Excited Nucleons, p.63 (2004), Grenoble, France, Mar. 2004