English

Production of $\Lambda_c^+$ hypernuclei in antiproton - nucleus collisions

Nuclear Theory 2017-06-16 v2 High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment

Abstract

We investigate the production of charm-baryon hypernucleus Λc+16^{16}_{\Lambda_c^+}O in the antiproton - 16^{16}O collisions within a fully covariant model that is based on an effective Lagrangian approach. The explicit ΛˉcΛc+{\bar \Lambda}_c^ - \Lambda_c^+ production vertex is described by the tt-channel D0D^0 and D0D^{*0} meson-exchanges in the initial collision of the incident antiproton with one of the protons of the target nucleus. The Λc+\Lambda_c^+ bound state spinors as well as the self-energies of the exchanged mesons employed in our calculations are derived from the quark-meson coupling model. The parameters of various vertices are taken to be the same as those used in our previous study of the elementary pˉ+pΛˉc+Λc+{\bar p} + p \to {\bar \Lambda}_c^- + \Lambda_c^+ reaction. We find that for antiproton beam momenta of interest to the PˉANDA{\bar P}ANDA experiment, the 0^\circ differential cross sections for the formation of Λc+16^{16}_{\Lambda_c^+}O hypernuclear states with simple particle-hole configurations, have magnitudes in the range of a few μ\mub/sr.

Keywords

Cite

@article{arxiv.1701.02225,
  title  = {Production of $\Lambda_c^+$ hypernuclei in antiproton - nucleus collisions},
  author = {R. Shyam and K. Tsushima},
  journal= {arXiv preprint arXiv:1701.02225},
  year   = {2017}
}

Comments

17 pages, 5 figures, Journal print version