Dielectron production in pion-nucleon reactions and form factor of baryon transition within the time-like region

2019/07/24 by A. P. Jerusalimov, Jerusalimov, A. P., G. I. Lykasov +1
Chemistry · Engineering · Physics and Astronomy · #Baryon #Chemistry #Economics #FOS: Physical sciences #Form factor (electronics) #High Energy Physics - Phenomenology (hep-ph) #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Superconducting Materials and Applications #Transition (genetics) #hep-ph

paper · pdf · doi:10.48550/arxiv.1907.10298

12 pages, 10 figures

arxiv created 2019/07/24 · openalex publication_date 2019/07/24 · arxiv updated 2019/07/25 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

Dielectron production in reactions π^- p → n e⁺e^- and π^- p → n e⁺e^- γ at energies less than 1 GeV is studied assuming electron-positron pair production to occur in the virtual time-like photon splitting process. Theoretical predictions of the effective mass distribution of dielectrons and their angular dependence are presented. Extraction of the electromagnetic form factor of baryon transition in the time-like region from future experiments of the HADES Collaboration is discussed.

Related

• First measurement of massive virtual photon emission from N* baryon resonances
• Dielectron production in pion-nucleon reactions at intermediate energies
• Inclusive e⁺e^- production in collisions of pions with protons and nuclei in the second resonance region of baryons
• Investigation of the baryon time-like electromagnetic form factors in the electron-positron annihilation reactions
• Nucleon structure from the quasithreshold inverse pion electroproduction