Formation spectra of charmed meson--nucleus systems using an antiproton beam

Abstract

We investigate the structure and formation of charmed meson--nucleus systems, with the aim of understanding the charmed meson--nucleon interactions and the properties of the charmed mesons in the nuclear medium. The $\bar{D}$ mesic nuclei are of special interest, since they have tiny decay widths due to the absence of strong decays for the $\bar{D}N$ pair. Employing an effective model for the $\bar{D}N$ and $DN$ interactions and solving the Klein--Gordon equation for $\bar{D}$ and $D$ in finite nuclei, we find that the $D^{-}$-${}^{11}\mathrm{B}$ system has $1s$ and $2p$ mesic nuclear states and that the $D^0$-${}^{11}\mathrm{B}$ system binds in a $1s$ state. In view of the forthcoming experiments by the PANDA and CBM Collaborations at the future FAIR facility and the J-PARC upgrade, we calculate the formation spectra of the $[D^{-}$-${}^{11}\mathrm{B}]$ and $[D^0$-${}^{11}\mathrm{B}]$ mesic nuclei for an antiproton beam on a ${}^{12}\mathrm{C}$ target. Our results suggest that it is possible to observe the $2p$ $D^{-}$ mesic nuclear state with an appropriate experimental setup.

8 pages, 5 figures

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Cited by in corpus (9)

• Heavy Hadrons in Nuclear Matter
• Meson-nucleus potentials and the search for meson-nucleus bound states
• Kondo effect in charm/bottom nuclei
• Pseudoscalar and vector open-charm mesons at finite temperature
• Production of ${\Lambda }_c^{+}$ hypernuclei in antiproton - nucleus collisions
• $\bar{D}D$ meson pair production in antiproton-nucleus collisions
• Open charm and bottom meson-nucleon potentials à la nuclear force
• Charmed-baryon production in antiproton-proton collisions within an effective Lagrangian model
• $\bar{K}\bar{D}N$ molecular state as a "$uuds\bar{c}$ pentaquark" in a three-body calculation