Parametrization of cross sections for elementary hadronic collisions involving strange particles

Improved Empirical Parametrization of Fragmentation Cross Sections

A useful tool to predict production cross sections of exotic nuclei in high-energy fragmentation reactions is a universal analytical formula called EPAX [1, 2]. This formula allows to calculate the yields from fragmenting all non-fissile projectiles in the range of projectile masses between about 40 to 209. The cross sections are assumed to be energy-independent and appear to be reliable at inc...

Nucleon resonances and processes involving strange particles

An existing single resonance model with S11, P11 and P13 Breit-Wiegner resonances in the s-channel has been reapplied to the old πN → KΛ data. It has been shown that the standard set of resonant parameters fails to reproduce the shape of the differential cross section. The resonance parameter determination has been repeated retaining the most recent knowledge about the nucleon resonances. The e...

Cross Sections for Electron Collisions with NF3

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 ...

High Energy Hadronic Total Cross-Sections

High energy hadronic total cross-section data are found to agree with the predictions of a QCD-string picture.