Total Cross Sections forp,p¯,K±, andπ±on Hydrogen Between 3 and 10 Gev/c

Photon Total Cross - sections

We discuss present predictions for the total γγ and γp cross-sections, highlighting why predictions differ. We present results from the Eikonal Minijet Model and improved predictions based on soft gluon resummation.

Total Cross - Sections 3 2 A QCD Approach

A unified approach to total cross-sections, based on the QCD contribution to the rise with energy, is presented for the processes pp, pp̄, γp, γγ, ee → hadrons. For proton processes, a discussion of the role played by soft gluon summation in taming the fast rise due to mini-jets is presented. For photonphoton processes, a comparison with other models indicates the need for precision measurements...

Total, Partial, and Differential Ionization Cross Sections in Proton–Hydrogen Atom Collisions in the Energy Region of 0.1–10 keVÕu

Single-differential, partial, and total ionization cross sections for the proton–hydrogen atom collision system in the energy region of 0.1–10 keV/u are determined by using the molecular-orbital close-coupling method within a semiclassical formalism. The present cross sections are in an excellent agreement with the recent experiments of Shah et al. @J. Phys. B. 31, L757 ~1998!#, but decrease mo...

Total Photonic and Hadronic Cross - sections 1

We discuss total cross-sections within the context of the QCD calculable mini-jet model, highlighting its successes and failures. In particular we show its description of γγ → hadrons and compare it with OPAL and L3 data. We extrapolate this result to γ p total cross-sections and propose a phenomenological ansätz for virtual photon cross-sections. We point out that the good agreement with data ...

Differential and total cross sections for ionization of helium and hydrogen by electrons.