Reaction $\bar{p}p\to {\bar{\Lambda }}_c^{-}{\Lambda }_c^{+}$ within an effective Lagrangian model

Abstract

We study the charmed baryon production reaction $\bar{p}p\to {\bar{\Lambda }}_c^{-}{\Lambda }_c^{+}$ using the $t$-channel $D^0$ and $D^{\ast 0}$ meson exchange diagrams within an effective Lagrangian model involving the physical hadron masses and the coupling constants determined from SU(4) flavor symmetry. The initial and final state distortion effects are accounted for by using a simple eikonal approximation based procedure. The vertex parameters of our model have been checked by employing them to calculate the cross sections for the $\bar{p}p\to \bar{\Lambda }\Lambda$ reaction within a similar model. We predict the ${\bar{\Lambda }}_c^{-}{\Lambda }_c^{+}$ production cross sections in the range of 1-30 $\mu b$ for antiproton beam momenta varying between threshold to 20 GeV/c. The respective roles of $D^0$ and $D^{\ast 0}$ meson exchanges and also those of the vector and tensor components of the $D^{\ast 0}$ coupling have been investigated

arXiv comment17 pages, 6 figures, Title slightly modified, Journal print version

References in corpus (20)

• Heavy Quark Symmetry
• The New Heavy Mesons: A Status Report
• Heavy baryons
• The Exotic XYZ Charmonium-like Mesons
• Coupled-channel study of crypto-exotic baryons with charm
• DN interaction from meson exchange
• Future Prospects for Hadron Physics at PANDA
• Phenomenology of nonperturbative charm in the nucleon
• Dbar-N interaction from meson-exchange and quark-gluon dynamics
• $pp\to p{K}^{+}\Lambda$ reaction in an effective Lagrangian model
• Role of baryonic resonances in the dilepton emission in nucleon-nucleon collisions
• How much charm can PANDA produce?
• Charmed meson rescattering in the reaction pbar d to D Dbar N
• The reaction ppbar -> Lambda_c-Lambda_cbar close to threshold
• Exclusive charm production in pbar p collisions at s^1/2 <15 GeV
• Production of charmed baryon ${\Lambda }_c(2940{)}^{+}$ at PANDA
• Proton-Antiproton Annihilation into a Lambda_c-Antilambda_c Pair
• A Quark Model of Antilambda-Lambda Production in Pbar-P Interactions
• Charm production in antiproton-proton annihilation
• Dynamically generated hidden-charm baryon resonances

Cited by in corpus (14)

• Nuclear-bound quarkonia and heavy-flavor hadrons
• Production of ${\Lambda }_c^{+}$ hypernuclei in antiproton - nucleus collisions
• Production of charmed baryons in $\bar{p}p$ collisions close to their thresholds
• Role of $Y(4630)$ in the $p\bar{p}\to {\Lambda }_c{\bar{\Lambda }}_c$ reaction near threshold
• A study of the $KN$-$K^{\ast }N$ coupled systems
• $\bar{D}D$ meson pair production in antiproton-nucleus collisions
• $\bar{p}p$ annihilation into $\bar{D}D$ meson pair within an effective Lagrangian model
• Distillation of scalar exchange by coherent hypernucleus production in antiproton-nucleus collisions
• Charmed-baryon production in antiproton-proton collisions within an effective Lagrangian model
• Charm production in interactions of antiproton with proton and nuclei at $\bar{P}ANDA$ energies
• Studying ${\Lambda }^{\ast }$ resonances in the $p\bar{p}\to \Lambda \bar{\Lambda }\eta$ reaction
• Asymmetric vector mesons produced in nuclear collisions
• Estimation of coupling constants for D-meson, charmed, and light baryons in effective Lagrangian approach and quark model
• Nuclear Reactions at Intermediate Energies