Meson Production in Antinucleon-Reactions on Atomic Nuclei: Theoretical Foundations for AIC and PANDA Experiments

• Applicant: Professor Dr. Horst Lenske
• Subject Area: Nuclear and Elementary Particle Physics, Quantum Mechanics, Relativity, Fields
• Term: from 2009 to 2014
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 87221488

• Final Report Year: 2016

Final Report Abstract

Antiproton interactions with nucleons and nuclei have been investigated theoretically. Inspired and guided by microscopic approaches antinucleon self-energies have been derived in a consistent approach for an energy region, extended much wider than before. The results are also appropriate as ISI in antiproton-nucleus reactions. Work on meson production was initiated and performed in some detail for two-pion exit channels. Meson-nucleus self-energies were investigated, also for the sake of accounting for pion-nucleus FSI over large energy ranges on a quantitative level. As an initially unforeseen aspect the production of strangeness and charm by antiproton annihilation was investigated. An unforeseen frustrating and time-consuming result of the project is the failure or inability of microscopic field-theoretical methods to provide a convergent and consistent description of antiproton-nucleus interactions. That forced us to change to the phenomenological approach which, however, has its undisputable advantages and merits. The rich material obtained within this project will lead to further publications on the antiproton and meson optical potentials, the description of meson production, meson-nucleus self-energies at higher energies, and the newly derived developments of eikonal theory.

Publications

• Phys. Lett. B 703 (2011) 193
  T. Gaitanos, M. Kaskulov and H. Lenske
  (See online at https://doi.org/10.1016/j.physletb.2011.07.071)
• EPJ Web Conf. 37 (2012) 06009
  S. Lourenco, H. Lenske and S. Wycech
  (See online at https://doi.org/10.1051/epjconf/20123706009)
• Genshikaku Kenkyu 57 (2013) 237
  S. Lourenco,H. Lenske,S. Wycech
  
• J. Phys. Conf. Ser. 426 (2013) 012005
  S. Lourenco, H. Lenske and S. Wycech
  (See online at https://doi.org/10.1088/1742-6596/426/1/012005)
• Hyperfine Interact. 229 (2014) 1-3, 53
  S. Lourenco, H. Lenske and S. Wycech
  (See online at https://doi.org/10.1007/s10751-014-1050-7)
• Phys. Rev. D 90 (2014) 1, 014017
  R. Shyam and H. Lenske
  (See online at https://doi.org/10.1103/PhysRevD.90.014017)
• Phys. Rev D, arXiv:1509.04786 [hep-ph]
  R. Shyam and H. Lenske