Production of charmed baryon ${\Lambda }_c(2940{)}^{+}$ at PANDA

Abstract

In this work we evaluate the production rate of the charmed baryon ${\Lambda }_c(2940{)}^{+}$ at PANDA. For possible assignments of ${\Lambda }_c(2940{)}^{+}$: $J^P=1/2^{\pm }$, $3/2^{\pm }$ and $5/2^{\pm }$, the total cross section of $p\bar{p}\to {\bar{\Lambda }}_c{\Lambda }_c(2940{)}^{+}$ is estimated, which may exceed 1 nb. With the designed luminosity ($2\times 10^{-32}$cm${}^{-2}$/s) of PANDA, our estimate indicates that ten thousand events per day if ${\Lambda }_c(2940{)}^{+}$ is of $J^P=1/2^{+}$ or $10^8$ per day if it is of $J^P=5/2^{+}$ can be expected. Those values actually set the lower and upper limits of the ${\Lambda }_c(2940{)}^{+}$ production. In addition, we present the Dalitz plot and carry out a rough background analysis of the ${\Lambda }_c(2940{)}^{+}$ production in the $p\bar{p}\to D^{0}p{\bar{\Lambda }}_c$ and $p\bar{p}\to {\Sigma }_c^{0,++}{\pi }^{+,-}{\bar{\Lambda }}_c$ processes, which would provide valuable information for accurate determination of the ${\Lambda }_c(2940{)}^{+}$ identity.

7 pages, 1 table, 10 figures. Accepted by Phys. Rev. D

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Cited by in corpus (25)

• A review of the open charm and open bottom systems
• $J/\psi ({\eta }_c)N$ and ${\rm Y}({\eta }_b)N$ cross sections
• $S$-wave $D^{(\ast )}N$ molecular states: ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940{)}^{+}$?
• Role of the ${\Lambda }_c^{+}(2940)$ in the ${\pi }^{-}p\to D^{-}{D}^{0}p$ reaction close to threshold
• Role of the hadron molecule Lambda_c(2940) in the p bar(p) -> p D0 bar(Lambda)_c(2286) annihilation reaction
• Effects of a $N^{\ast }$ resonance with hidden charm in the ${\pi }^{-}p\to D^{-}{\Sigma }_c^{+}$ reaction near threshold
• Strong decay of ${\Lambda }_c(2940)$ as a $2P$ state in the ${\Lambda }_c$ family
• $D^{(\ast )}N$ interaction and the structure of ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940)$ in chiral effective field theory
• Reaction $\bar{p}p\to {\bar{\Lambda }}_c^{-}{\Lambda }_c^{+}$ within an effective Lagrangian model
• ${\Lambda }_c(2910)$ and ${\Lambda }_c(2940)$ as the conventional baryons dressed with the $D^{\ast }N$ channel
• ${\Lambda }_c^{+}(2940)$ photoproduction off the neutron
• $ND$ and $NB$ systems in quark delocalization color screening model
• Production of charmed baryon ${\Lambda }_c(2940)$ by kaon-induced reaction on a proton target
• Role of $Y(4630)$ in the $p\bar{p}\to {\Lambda }_c{\bar{\Lambda }}_c$ reaction near threshold
• Searching for $X_0(2900)$ and $X_1(2900)$ through the kaon induced reactions
• Multiquark contributions to charm baryon spectroscopy
• Production of the $D_{s0}(2317)$ and $D_{s1}(2460)$ by kaon-induced reactions on a proton target
• Production of charmed baryon ${\Lambda }_c(2860)$ via low energy antiproton-proton interaction
• Possibility of ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940{)}^{+}$ as $S$-wave $D^{(\ast )}N$ molecular states
• Production of open-charm pentaquark molecules in decay $B^0\to {\bar{D}}^{0}p\bar{p}$
• Photoproduction of the $X(3872)$ beyond vector meson dominance: the open-charm coupled-channel mechanism
• Octet baryon and heavy meson interactions in chiral effective field theory
• Studying ${\Lambda }^{\ast }$ resonances in the $p\bar{p}\to \Lambda \bar{\Lambda }\eta$ reaction
• Electromagnetic probes revealing the inner structure of the ${\Lambda }_c(2940)$
• A search for $B_{s0}^{\ast }$ and $B_{s1}^{\ast }$ through the $K^{-}p$ interaction