The soft and the hard pomerons in hadron elastic scattering at small t
High Energy Physics - Phenomenology
2011-03-23 v2 High Energy Physics - Experiment
Abstract
We consider simple-pole descriptions of soft elastic scattering for pp, pbar p, pi+ p, pi- p, K+ p and K- p. We work at t and s small enough for rescatterings to be neglected, and allow for the presence of a hard pomeron. After building and discussing an exhaustive dataset, we show that simple poles provide an excellent description of the data in the region - 0.5 GeV^2 < t < -0.1 GeV^2, 6 GeV<sqrt(s)< 63 GeV. We show that new form factors have to be used, and get information on the trajectories of the soft and hard pomerons.
Cite
@article{arxiv.hep-ph/0511073,
title = {The soft and the hard pomerons in hadron elastic scattering at small t},
author = {J. R. Cudell and A. Lengyel and E. Martynov},
journal= {arXiv preprint arXiv:hep-ph/0511073},
year = {2011}
}
Comments
27 pages, 9 figures, LaTeX. A few typos fixed, and references corrected