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Radiative corrections in proton--antiproton annihilation to electron-positron and their application to the PANDA experiment
Yu. M. Bystritskiy, V. A. Zykunov, A. Dbeyssi +3
Radiative corrections to the annihilation of proton--antiproton into electron--positron are revisited, including virtual and real (soft and hard) photon emission. This issue is rel…
Experimental constraint on the meson form factors in the time--like region
A. Dbeyssi, E. Tomasi-Gustafsson, G. I. Gakh +1
The annihilation reaction is considered. The constraint on time-like -meson form factors from the measurement done by the BaBar collaboration at $\…
Synchrotron radiation in a chromo-magnetic field
Alaa Dbeyssi, Dima Al Dirani, H. Zaraket
We study the generalization of QED synchrotron radiation to the QCD case with a chromomagnetic field using the Schwinger {\it et al} source method. It is shown that the QED case ca…
Proton-antiproton annihilation into massive leptons
A. Dbeyssi, E. Tomasi-Gustafsson, G. I. Gakh +1
We extend previous calculations of polarization observables for the annihilation reaction to the case of heavy leptons, such as the -lepton. We…
A model for space and time-like proton (neutron) form factors
E. A. Kuraev, A. Dbeyssi, E. Tomasi-Gustafsson
A model is suggested to describe the known experimental behavior of nucleon form factors both in space and time-like regions. It implies quarks to be colorless in the region of hig…
Annihilation of and through -meson intermediate state
E. A. Kuraev, Yu. M. Bystritskiy, V. V. Bytev +2
The s-channel annihilation of proton and antiproton into a neutral pion and a real or virtual photon followed by lepton pair emission is studied. Such mechanism is expected to play…