Orateur
Mlle
ying wang
(Institut de Physique Nucléaire Orsay)
Description
Exclusive binary annihilation reactions induced by antiprotons of momentum from
1.5 to 15 GeV/c can be extensively investigated at FAIR/PANDA [1]. We are especially
interested in the channel of charged pion pairs. Whereas this very probable channel constitutes
the major background for other processes of interest in the PANDA experiment, it carries unique
physical information on the quark content of proton, allowing to test different models (quark
counting rules, statistical models,..). To study the binary reactions of light meson formation,
we are developing an effective Lagrangian model based on Feynman diagrams which takes
into account the virtuality of the exchanged particles. Regge factors [2] and form factors are
introduced with parameters which may be adjusted on the existing data. We present reproduce
results of our formalism of different reactions of light meson production for reliable predictions
of cross sections, energy and angular dependencies in the PANDA kinematical range.
Auteur principal
Mlle
ying wang
(Institut de Physique Nucléaire Orsay)
