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arXiv · 1409.5082

Decays of open charmed mesons in the extended Linear Sigma Model

Walaa I. Eshraim·Francesco Giacosa
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Abstract

We enlarge the so-called extended linear Sigma model (eLSM) by including the charm quark according to the global $U(4)_r\times U(4)_l$ 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.

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Walaa I. Eshraim, Francesco Giacosa. 2014-11-09. Decays of open charmed mesons in the extended Linear Sigma Model. https://doi.org/10.1051/epjconf%2F20148105009

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