Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-09-29
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latex, 3 pages, 2 figures, uses sprocl.sty. Talk at SPIN98 symposium, September 8-12, Protvino, Russia
Scientific paper
We study $pp$ scattering at high energies and moderately large momentum transfer using a QCD--based model in which the proton is viewed as being composed of a quark and a diquark. This model leads to spin asymmetries which are neither small nor vanish at high energies. The predicted ratio of helicity flip and non-flip amplitudes is about 0.2-0.3 and $A_n$ asymmetry is about 20-30% for $|t| > 4 {GeV}^2$.
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