Lambda(1405) photoprodcution with p-wave contributions
Abstract
In this report, we present our recent studies on the Lambda(1405,1/2-)=Lambda* photoproduction via the gamma p -> K+ pi Sigma scattering process, employing a coupled-channel formalism, i.e., the chiral unitary model, which respects chiral dynamics in terms of the Weinberg-Tomozawa meson baryon interaction. In addition to the dynamically generated s-wave resonance, Lambda*, we include the p-wave resonance contribution from Sigma(1385,3/2+). We observe that the p-wave contribution provides considerable effects on the pi-Sigma invariant-mass spectrum. It also turns out that, within the present level of calculations, we can reproduce hardly the recent Lambda* photoproduction experiment by LEPS collaboration at SPring-8.
Keywords
Cite
@article{arxiv.0901.4175,
title = {Lambda(1405) photoprodcution with p-wave contributions},
author = {Seung-il Nam and Daisuke Jido},
journal= {arXiv preprint arXiv:0901.4175},
year = {2009}
}
Comments
10 pages, 7 figures, Talk given at the Workshop "Strangeness in Multi-Quark Systems", 29 ~ 31 Oct 2008, Kaga, Japan