The role of hyperon resonances in p(gamma,K+)Lambda processes

Preprint

4 May 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/0105008

Abstract

We discuss the role of hyperon resonances in the u-channel when modeling p (gamma,K+)Lambda processes in an effective Lagrangian approach. Without the introduction of hyperon resonances, one is forced to use soft hadronic form factors with a cutoff mass which is at best two times the kaon mass. After inclusion of the hyperon resonances in the u-channel, we obtain a fair description of the data with a cutoff mass of the order of 1.8 GeV.

Keywords

CHANNEL WHEN MODELING
EFFECTIVE LAGRANGIAN
HYPERON RESONANCES
LAMBDA PROCESSES
ROLE OF HYPERON
CUTOFF MASS
USE SOFT

All Related Versions

Version 1, 2001-05-04, ArXiv
Published version: The European Physical Journal A, 11 (1), 105.

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