https://doi.org/10.1051/epjconf/20148105009
Decays of open charmed mesons in the extended Linear Sigma Model
1 Institute for Theoretical Physics, Goethe University, Max-von-Laue-Str. 1, D–60438 Frankfurt am Main, Germany
2 Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland
a. Based on the poster preperation given by W. I.Eshraim at the 13th International Workshop on Meson Production, Properties and Interaction, 29th May - 3rd June 2014, KRAKÓW, POLAND. The poster was awarded with the special prize of the Poster Session. e-mail: weshraim@th.physik.uni-frankfurt.de
Published online: 26 November 2014
We enlarge the so-called extended linear Sigma model (eLSM) by including the charm quark according to the global U(4)r × U(4)l chiral symmetry. In the eLSM, besides scalar and pseudoscalar mesons, also vector and axial-vector mesons are present. Almost all the parameters of the model were fixed in a previous study of mesons below 2 GeV. In the extension to the four-flavor case, only three additional parameters (all of them related to the bare mass of the charm quark) appear.We compute the (OZI dominant) strong decays of open charmed mesons. The results are compatible with the experimental data, although the theoretical uncertainties are still large.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
