Erlangen 2026 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Hadron Structure and Spectroscopy VIII
HK 38.4: Vortrag
Donnerstag, 19. März 2026, 17:15–17:30, PHIL A 401
Feasibility Studies for hidden-charm Pentaquark searches with CBM — •Ralf Kliemt for the CBM collaboration — Ruhr-Universität Bochum, Bochum, Germany — GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
We investigate the feasibility to measure the direct production of pentquark-like states at the CBM experiment at FAIR in proton-proton collisions. For these, we performed feasibility studies by evaluating the performance assuming the three LHCb-discovered pentaquark states. Using GEANT4-based simulations we analyzed the reaction to p p J/ψ in the e+e− decay channel of the J/ψ at a beam energy of 29 GeV. The study demonstrates CBM’s excellent capabilities with an invariant mass resolution for the pJ/ψ system below 7 MeV/c2 and signal acceptance × efficiency exceeding 10% whilst reducing background by O(10−9). Our results confirm CBM can provide high-precision measurements of pentaquarklike state properties through an independent production mechanism, offering crucial complementary data to the inclusive measurements and significantly advancing understanding of exotic hadronic states.
Keywords: Pentaquarks; Exotic hadrons; CBM; FAIR