P-P Total Cross Sections at VHE from Accelerator Data

Details P-P Total Cross Sections at VHE from Accelerator Data P-P Total Cross Sections at VHE from Accelerator Data

2004-08-06

arxiv.org/abs/hep-ph/0408086v1

New J.Phys.7:150,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages aqnd 11 figures

Scientific paper

10.1088/1367-2630/7/1/150

Comparison of P-P total cross-sections estimations at very high energies - from accelerators and cosmic rays - shows a disagreement amounting to more than 10 %, a discrepancy which is beyond statistical errors. Here we use a phenomenological model based on the Multiple-Diffraction approach to successfully describe data at accelerator energies. The predictions of the model are compared with data On the basis of regression analysis we determine confident error bands, analyzing the sensitivity of our predictions to the employed data for extrapolation. : using data at 546 and 1.8 TeV, our extrapolations for p-p total cross-sections are only compatible with the Akeno cosmic ray data, predicting a slower rise with energy than other cosmic ray results and other extrapolation methods. We discuss our results within the context of constraints in the light of future accelerator and cosmic ray experimental results.

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