Speaker
Description
In this work, we will calculate the cross-section of charmed baryon production near threshold from $p\bar p$ annihilation processes. We employ 3-point vertices chiral effective Lagrangian of D-mesons, charmed and light baryons based on $SU(2)$ flavor symmetry, there are 15 terms in total. By using heavy-quark symmetry (HQS) and large-$N_c$ operator analysis, one can reduce the number of low energy constants (LECs) down to 5. The reactions, $p\bar p \rightarrow \Lambda_c \bar \Lambda_c$, $\Sigma_c \bar\Sigma_c$ and $\Sigma_c^*\bar\Sigma_c^*$, are investigated by using our chiral effective Lagrangian with HQS and large-$N_c$ constraints. Results from our work will be used to compare with several models in literatures. In addition, we hope that our results might be useful for planning the measurements of the relevant processes from the $\bar{P}$ANDA facilities in the forthcoming future.
