Vacuum properties of open charmed mesons in a chiral symmetric model

Abstract

We present a $U(4{)}_R\times U(4{)}_L$ chirally symmetric model, which in addition to scalar and pseudoscalar mesons also includes vector and axial-vector mesons. A part from the three new parameters pertaining to the charm degree of freedom, the parameters of the model are fixed from the $N_f=3$ flavor sector. We calculate open charmed meson masses and the weak decay constants of nonstrange open charm $D$ and strange open charm $D_S$. We also evaluate the (OZI-dominant) strong decays of open charmed mesons. The results are turn out to be in quantitative agreement with experimental data.

Comments: 5 pages, 2 tables. Contribution to the workshop for young scientists with research interests focused on physics at FAIR, 22-27 September 2014, Vietri sul Mare, Italy. arXiv admin note: text overlap with arXiv:1411.2218