Energy Dependence of Helicity--Flip Amplitudes in the Small--Angle Elastic pp--Scattering

Abstract

We discuss a role of the double helicity-flip amplitudes and derive new unitary bounds for these amplitudes in elastic $pp$-scattering at small values of $t$. We show that the usual assumption on the smallness of such amplidudes can be justified only in the shrinking with energy region of small $t$ values.

Comments: a talk given at the 16th Intern. Spin Physics Symposium, SPIN2004, Trieste, Italy, 4 pages