%0 Journal Article
%T Regge signatures from forward CLAS Lambda(1520) photoproduction data
%A Wang, E.
%A Xie, J. J.
%A Nieves, J.
%J Physical Review C
%D 2014
%V 90
%N 6
%F Wang_etal2014
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2135), last updated on Wed, 25 Mar 2015 11:56:54 +0000
%X The γp→K+Λ(1520) reaction mechanism is investigated within a Regge--effective Lagrangian hybrid approach based on our previous study of this reaction [Physical Review C89, 015203 (2014)]. Near threshold and for large K+ angles, both the CLAS and LEPS data can be successfully described by considering the contributions from the contact, t-channel K¯ exchange, u-channel Λ(1115) hyperon pole, and the s-channel nucleon pole and N∗(2120) resonance contributions. However, for higher energies and forward K+ angles, systematic discrepancies with data appear, which hint the possible existence of sizable quark-gluon string mechanism effects. We show how the inclusion of a K¯ Regge--trajectory exchange in the t-channel leads to an efficient description of the Λ(1520) photoproduction channel over the whole energy and angular ranges accessible in the CLAS experiment.
%R 10.1103/PhysRevC.90.065203
%U http://arxiv.org/abs/1405.3142
%U https://doi.org/10.1103/PhysRevC.90.065203
%P 065203-10pp