Annihilation of p-bar + p {yields} e{sup +} + e{sup -} + {pi}{sup 0} and p-bar + p {yields} {gamma} + {pi}{sup 0} through an {omega}-Meson intermediate state
Journal Article
·
· Journal of Experimental and Theoretical Physics
- Universite Paris-Sud, Institut de Physique Nucleaire (France)
The s-channel annihilation of a proton and an antiproton into a neutral pion and a real or virtual photon followed by lepton pair emission is studied. Such a mechanism is expected to play a role at moderate values of the total energy {radical}s, when the pion is emitted in the angular region around 90 Degree-Sign in the center-of-mass system. A fair comparison with the existing data is obtained taking scattering and annihilation channels into account. The cross section is calculated and numerical results are given in the kinematical range accessible in the PANDA experiment at FAIR.
- OSTI ID:
- 22069407
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 115, Issue 1; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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