Antiproton-proton interaction and related hadron physics

Abstract

Antinucleon-nucleon interaction has been established in chiral effective field theory. The strong threshold enhancement observed in the reactions $J/\psi \to \gamma \overline{p}p$ and $e^{+}{e}^{-}\to \overline{p}p$ are interpreted by the strong $\overline{p}p$ interaction. Concerning the channel $J/\psi \to \gamma \overline{p}p$, the topic on the $\overline{p}p$ bound state is also discussed.

9 pages, 5 figures, prepared for proceeding of the conference "Chiral Dynamics 2015", held from 29 June 2015 to 03 July 2015, Pisa, Italy

References in corpus (4)

• The electromagnetic form factors of the proton in the timelike region
• Study of psi(2S) Decays to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} and Search for p bar{p} Threshold Enhancements
• Energy-dependent partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c
• Origin of the structures observed in $e^{+}{e}^{-}$ annihilation into multipion states around the $\bar{p}p$ threshold