English

Determining the $\Theta^+$ quantum numbers through the $K^+p\to \pi^+K^+n$ reaction

Nuclear Theory 2015-06-26 v2 High Energy Physics - Phenomenology

Abstract

We study the K+pπ+K+nK^+p\to \pi^+K^+n reaction with some kinematics suited to the production of the Θ+\Theta^+ resonance recently observed. We show that, independently of the quantum numbers of the Θ+\Theta^+, a resonance signal is always observed in the K+K^+ forward direction. In addition, we also show how a combined consideration of the strength at the peak, and the angular dependence of polarization observables can help determine the Θ+\Theta^+ quantum numbers using the present reaction.

Keywords

Cite

@article{arxiv.nucl-th/0307105,
  title  = {Determining the $\Theta^+$ quantum numbers through the $K^+p\to \pi^+K^+n$ reaction},
  author = {T. Hyodo and A. Hosaka and E. Oset},
  journal= {arXiv preprint arXiv:nucl-th/0307105},
  year   = {2015}
}

Comments

21 pages, 8 figures, Version to appear in Phys. Lett. B