ﻻ يوجد ملخص باللغة العربية
The masses of excited charmed mesons are shown to decrease by $sim (50-150)$~MeV due to a flattening of the confining potential at large distances, which effectively takes into account open decay channels. The scale of the mass shifts is similar to that in charmonium for $psi(4660)$ and $chi_{c0}(4700)$. The following masses of the first excitations: $M(2,{}^3P_0)=2874$~MeV, $M(2,{}^3P_2)=2968$~MeV, $M(2,{}^3D_1)=3175$~MeV, and $M(2,{}^3D_3)=3187$~MeV, and second excitations: $M(3,{}^1S_0)=3008$~MeV, $M(3,{}^3S_1)=3062$~MeV, $M(3,{}^3P_0)=3229$~MeV, and $M(3,{}^3P_2) =3264$~MeV, are predicted. The other states with $L=0,1,2$ and $n_r geq 3$ have their masses in the region $M(nL)geq 3.3$~GeV.
We examine charmed-strange mesons within the framework of the constituent quark model, focusing on the states with L=1. We are particularly interested in the mixing of two spin-states that are involved in $D_{s1}(2536)$ and the recently discovered $D
Using the newly measured masses of $B_c(1S)$ and $B_c(2S)$ from the CMS Collaboration and the $1S$ hyperfine splitting determined from the lattice QCD as constrains, we calculate the $B_c$ mass spectrum up to the $6S$ multiplet with a nonrelativistic
We give a systematic study of ${bf B}_cto {bf B}_n V$ decays, where ${bf B}_c$ and $ {bf B}_n$ correspond to the anti-triplet charmed and octet baryons, respectively, while $V$ stand for the vector mesons. We calculate the color-symmetric contributio
We present ground state spectra of mesons containing a charm and a bottom quark. For the charm quark we use overlap valence quarks while a non-relativistic formulation is utilized for the bottom quark on a background of 2+1+1 flavors HISQ gauge confi
The results of treatment of data obtained in the SERP-E-184experiment Investigation of mechanisms of the production of charmed particles in proton-nucleus interactions at 70 GeV and their decays by irradiating the active target of the SVD-2 facility