Event calendar file
26-31 July 2021
Mexico City
Mexico/General timezone
HADRON 2021 is over. Thanks for making it a success!
- hadron2021@nucleares.unam.mx
Contact information
Mexico City
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Baryon Spectroscopy
$\Lambda(1405)$ mediated triangle singularity in the $K^-d\to p\Sigma^-$ reaction
Speakers
- Dr. Albert FEIJOO ALIAU
Primary authors
- Dr. Albert FEIJOO ALIAU (IFIC)
- Mrs. Raquel MOLINA PERALTA (Universidad Complutense de Madrid)
- Prof. Eulogio OSET BAGUENA (IFIC, University of Valencia CSIC)
- Prof. Lian-Rong DAI (School of Science, Huzhou University, China)
Files
Abstract
The $p \Sigma^- \to K^- d$ reaction is driven by a triangle mechanism whose intermediate states consist of a proton, a neutron and the $\Lambda(1405)$. The triangle singularity developed by such a topology magnifies its cross section. We show that this observable, which is in a measurable range, will constrain the not well known theoretical $\bar{K}N$ subthreshold amplitudes thereby providing more accurate predictions for the lower mass $\Lambda(1405)$ state.
