Total Hadronic Cross Sections and π^\mp π^+ Scattering

Details Total Hadronic Cross Sections and π^\mp π^+ Scattering Total Hadronic Cross Sections and π^\mp π^+ Scattering

2011-10-07

arxiv.org/abs/1110.1479v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

Final version to be published in PRD (2012)

Scientific paper

Recent measurements of the inelastic and total proton-proton cross section at the LHC, and at cosmic ray energies by the Auger experiment, have quantitatively confirmed fits to lower energy data constrained by the assumption that the proton is asymptotically a black disk of gluons. We show that data on \bar p(p)p,\pi^\mp p, and K^\mp p forward scattering support the related expectation that the asymptotic behavior of all cross sections is flavor independent. By using the most recent measurements from ATLAS, CMS, TOTEM and Auger, we predict \sigma^{pp}_{\rm tot} (\sqrt s=8 {\rm TeV})=100.6 \pm 2.9 mb and \sigma^{pp}_{\rm tot} (\sqrt s=14 {\rm TeV})=110.8 \pm 3.5 mb, as well as refine the total cross section \sigma^{pp}_{\rm tot} (\sqrt s=57 {\rm TeV})=139.6 \pm 5.4 mb. Our analysis also predicts the total \pi^\mp \pi^+ cross sections as a function of \sqrt s.

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