Charmed hadron production from secondary annihilations in p+A reactions at FAIR

Tom Reichert; Jan Steinheimer; Marcus Bleicher

doi:10.1140/epja/s10050-025-01583-9

2023 Impact factor 2.6

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2025) 61: 104
https://doi.org/10.1140/epja/s10050-025-01583-9

Letter

Charmed hadron production from secondary $\bar{p} + p$ $\overline{p} + p$ annihilations in p+A reactions at FAIR

Tom Reichert¹^,2, Jan Steinheimer²^,3 and Marcus Bleicher¹^,4^a

¹ Institut für Theoretische Physik, Goethe Universität Frankfurt, Max-von-Laue-Str. 1, 60438, Frankfurt am Main, Germany
² Frankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, 60438, Frankfurt am Main, Germany
³ GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291, Darmstadt, Germany
⁴ Helmholtz Research Academy Hesse for FAIR (HFHF), GSI Helmholtzzentrum für Schwerionenforschung GmbH, Campus Frankfurt, Max-von-Laue-Str. 12, 60438, Frankfurt am Main, Germany

^a bleicher@itp.uni-frankfurt.de

Received: 6 March 2025
Accepted: 2 May 2025
Published online: 19 May 2025

Abstract

We present estimates for the production cross sections of charmed states ( $Λ_{c}, Σ_{c}, Ξ_{c}, D and D_{s}$ $\Lambda _c, \Sigma _c, \Xi _c, D\, \textrm{and}\, D_s$ ) from secondary $\bar{B} + B$ $\overline{B} + B$ annihilations in p+A reactions from $E_{lab} = 10 - 30 A$ $E_\textrm{lab}=10-30A$ GeV. We focus specifically on the newly planned hadron physics program of CBM at FAIR. These estimates for the production of charmed states are based on the achievable number of $\bar{B} + B$ $\overline{B} + B$ annihilations and their invariant mass distributions calculated in the UrQMD transport model.

Communicated by Che-Ming Ko.

© The Author(s) 2025

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