Study of $\Lambda(1405)$ in photoproduction of $K^*$

T. Hyodo; A. Hosaka; M. J. Vicente Vacas; E. Oset

Study of $\Lambda(1405)$ in photoproduction of $K^*$

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

Authors: T. Hyodo , A. Hosaka , M. J. Vicente Vacas , E. Oset

Abstract

We investigate the photoproduction of $K^*$ vector meson for the study of the $\Lambda(1405)$ resonance. The invariant mass distribution of $\pi\Sigma$ shows a different shape from the nominal one, peaking at 1420 MeV. This is considered as a consequence of the double pole structure of $\Lambda(1405)$ , predicted in the chiral unitary model. Combined with other reactions, such as $\pi^- p \to K^0 \pi\Sigma$ , experimental confirmation of this fact will reveal a novel structure of the $\Lambda(1405)$ state.

Keywords

lambda(1405) photoproduction k* vector meson chiral unitary model double pole structure pi sigma invariant mass

Cite

@article{arxiv.nucl-th/0404031,
  title  = {Study of $\Lambda(1405)$ in photoproduction of $K^*$},
  author = {T. Hyodo and A. Hosaka and M. J. Vicente Vacas and E. Oset},
  journal= {arXiv preprint arXiv:nucl-th/0404031},
  year   = {2007}
}

Comments

revtex4, 4 pages, 5 figures, 1 table, Invited talk at the YITP workshop on ``Multi-quark Hadrons; Four, Five and More?'', Feb. 17-19, 2004, Kyoto, Japan

Study of $\Lambda(1405)$ in photoproduction of $K^*$

Abstract

Keywords

Cite

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