Unitarity approach to the mass-dependent fit of $3π$ resonance production data from the COMPASS experiment
Mikhasenko, Mikhail; Jackura, Andrew; Ketzer, Bernhard; Szczepaniak, Adam P
2017

Abstract

We derive a unitarized model for the peripheral production of the three-pion system in the isobar approximation. The production process takes into account long-range t-channel pion exchange. The K-matrix approach is chosen for the parameterization of the scattering amplitude. Five coupled channels are used to fit the COMPASS spin-density matrices for the J$^{PC}$ M$^ϵ$ = 2$^{−+}$0$^+$ sector. Preliminary results of the fit are presented.

Details

Title Unitarity approach to the mass-dependent fit of $3π$ resonance production data from the COMPASS experiment
Author Mikhasenko, Mikhail
Jackura, Andrew
Ketzer, Bernhard
Szczepaniak, Adam P
Publication Date Mar 22 2017
Date Submitted Aug 10 2018
DOI https://doi.org/10.1051/epjconf/201713705017
Published in EPJ Web Conf.

Volume 137
External Resources https://doi.org/10.1051/epjconf/201713705017

Statistics

from
to
Export