%0 Journal Article
%T Role of a triangle singularity in the gamma p -> K+Lambda (1405) reaction
%A Wang, E.
%A Xie, J. J.
%A Liang, W. H.
%A Guo, F. K.
%A Oset, E.
%J Physical Review C
%D 2017
%V 95
%N 1
%I Amer Physical Soc
%@ 2469-9985
%G English
%F Wang_etal2017
%O WOS:000392077300005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2917), last updated on Thu, 09 Feb 2017 09:58:03 +0000
%X We show the effects of a triangle singularity mechanism for the gamma p -> K+Lambda(1405) reaction. The mechanism has a N-* resonance around 2030 MeV, which decays into K*Sigma. The K-* decays to K+ pi, and the pi Sigma merge to form the Lambda (1405). This mechanism produces a peak around root s = 2110 MeV, and has its largest contribution around cos theta= 0. The addition of this mechanism to other conventional ones leads to a good reproduction of d sigma/dcos theta and the integrated cross section around this energy, providing a solution to a problem encountered in previous theoretical models.
%R 10.1103/PhysRevC.95.015205
%U http://arxiv.org/abs/1610.07117
%U https://doi.org/10.1103/PhysRevC.95.015205
%P 015205-9pp