2017/12/15 by R. Shyam · 5 citations
Physics and Astronomy · #Antiproton #Baryon #Hadron #High-Energy Particle Collisions Research #Lambda #Meson #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Vector meson #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevd.96.116019
published in Physical review. D/Physical review. D. 96(11) (American Physical Society) · 16 pages, 5 figures. typos corrected, version accepted for publication in Phys. Rev. D. arXiv admin note: text overlap with arXiv:1406.7071
arxiv created 2017/12/15 · openalex created_date 2017/12/22 · openalex publication_date 2017/12/26 · arxiv updated 2018/01/03 · openalex updated_date 2026/08/05
We study the productions of charmed baryons \mathrm\ensuremathΛc^\ensuremath-\mathrm\ensuremathΛc+, \mathrm\ensuremathΛc^\ensuremath-\mathrm\ensuremathΣc+, and \mathrm\ensuremathΣ^\ensuremath-\mathrm\ensuremathΣc+ in the antiproton-proton collisions within an effective Lagrangian model that has only the baryon-meson degrees of freedom and involves the physical hadron masses. The baryon production proceeds via the t-channel exchanges of D0 and D*0 mesons in the initial collision of the antiproton with the target proton. The distortion effects in the initial and final states are accounted for by using an eikonal approximation-based procedure. We find that the reaction amplitudes of all the production channels are dominated by the D*0 meson-exchange diagrams. We discuss the relative roles of tensor and vector components of the D*0 coupling in the D*0 meson-exchange component of the total production cross sections. The magnitudes of the cross sections are predicted for each final state for the range of beam momenta of relevance to the PANDA experiment.