1204.5646 (D. A. Fagundes et al.)

Preliminary Results on the Empirical Applicability of the Tsallis
Distribution in Elastic Hadron Scattering    [PDF]

D. A. Fagundes, M. J. Menon, P. V. R. G. Silva

We show that the proton-proton elastic differential cross section data at intermediate and large values of the momentum transfer squared (dip position and beyond) can be quite well described by a parametrization based on the Tsallis distribution, with only five free fit parameters. By adding two exponential contributions for the diffraction peak region (four free parameters) a global empirical description of all the experimental data at 19.4 - 62.5 GeV and also the experimental information available at 7 TeV (LHC) is obtained. Extrapolation of the results suggests that hadrons may not behave as a black-disk at the asymptotic limit.

View original: http://arxiv.org/abs/1204.5646