First estimate of producing the charmed baryon ${\Lambda }_c(2880)$ at PANDA

Abstract

In the present work we explore the production potential of ${\Lambda }_c(2880{)}^{+}$ at PANDA. With the $J^P={\frac{5}{2}}^{+}$ assignment to ${\Lambda }_c(2880{)}^{+}$, we calculate the differential and total cross sections of $p\bar{p}\to {\Lambda }_c^{-}{\Lambda }_c(2880{)}^{+}$. We also perform the Dalitz plot analysis and give the $p{D}^0$ invariant mass spectrum distribution of the process $p\bar{p}\to {\Lambda }_c^{-}p{D}^0$, where the signal and background contributions are considered. Our numerical results indicate that the production of ${\Lambda }_c(2880{)}^{+}$ may reach up to about 20 $\mu$b. About $10^7$ events from the reconstruction of $p{D}^0$ can be accumulated per day, if taking the designed luminosity ($2\times10^{32}~\mbox{cm}^{-2}\mbox{s}^{-1}$) of PANDA.

7 pages, 9 figures. More discussion added. Accepted by Phys. Rev. D

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• Role of $Y(4630)$ in the $p\bar{p}\to {\Lambda }_c{\bar{\Lambda }}_c$ reaction near threshold
• Production of charmed baryon ${\Lambda }_c(2860)$ via low energy antiproton-proton interaction