2020/12/18 by Thanat Sangkhakrit, Sang-In Shim, Sangkhakrit, Thanat +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2012.10131
openalex publication_date 2020/12/18 · openalex created_date 2021/01/05 · openalex updated_date 2026/07/28
Strange and charmed baryon productions from proton-antiproton collisions are studied in the effective Lagrangian and Regge approaches. We include only the t-channel dynamics which is dominant for the diffractive region that is relevant in the present discussions. For strangeness productions, the coupling constants for K meson are determined by SU(3) relations while other unknown parameters for K* couplings and for form factors are fixed by existing observed data for strangeness productions. By extrapolating the amplitudes for strangeness productions to those for charm, we predict charm production cross sections. It turns out that the total cross sections are 104 to 105 smaller than those of strangeness productions, depending on the final states. By using the known total cross sections for strangeness, ∼ 102 μb for ΛΛ and, ∼ 101 μb for ΣΛ the total cross sections for charm productions are predicted to be ∼ 10-2 μb for Λc Λc, ∼ 10-3 μb for Σc Λc, and ∼ 10-4 μb for Σc Σc. Our results can be tested in the future experiments at PANDA.