Strong Decays of the Orbitally Excited Scalar D0∗D^{*}_{0} Mesons

We calculate the two-body strong decays of the orbitally excited scalar mesons $D_0^*(2400)$ and $D_J^*(3000)$ by using the relativistic Bethe-Salpeter (BS) method. $D_J^*(3000)$ was observed recently by the LHCb Collaboration, the quantum number of which has not been determined yet. In this paper, we assume that it is the $0^+(2P)$ state and obtain the transition amplitude by using the PCAC relation, low-energy theorem and effective Lagrangian method. For the $1P$ state, the total widths of $D_0^*(2400)^{0}$ and $D_0^*(2400)^+$ are 226 MeV and 246 MeV, respectively. With the assumption of $0^+(2P)$ state, the widths of $D_J^*(3000)^0$ and $D_J^*(3000)^+$ are both about 131 MeV, which is close to the present experimental data. Therefore, $D_J^*(3000)$ is a strong candidate for the $2^3P_0$ state.Comment: 21 pages, 10 figure

{2-[2-(Isopropyl­amino)­ethyl­imino­meth­yl]-5-meth­oxy­phenolato}(thio­cyanato­-κN)nickel(II)

In the title mononuclear complex, [Ni(C13H19N2O2)(NCS)], the NiII ion is coordinated by one phenolate O atom, one imine N atom, and one amine N atom of a 2-[2-(isopropyl­amino)­ethyl­imino­meth­yl]-5-meth­oxy­phenolate Schiff base ligand, and by one N atom of a thio­cyanate ligand, forming a slightly distorted square-planar geometry