English

Energy Dependence of Profile Functions in $\rm{p\bar p}$ and $\rm pp$ Scattering

High Energy Physics - Phenomenology 2013-05-16 v1

Abstract

We construct analytical forms in the impact parameter bb-space for the real and imaginary amplitudes describing elastic pp and ppˉ\rm p \bar p scattering. The amplitudes converted analytically to the momentum transfer tt-space have magnitudes, slopes, curvatures, zeros, signs, obeying phenomenological and theoretical expectations, and describe with high precision all details of the data, in the full-t range, and for energies from 20 GeV to 7 TeV. The connection of forward with large-t|t| behavior allows precise determination of total cross-sections, slopes and other scattering parameters. We study the properties and the energy dependence of the bb-space profile functions, observing that the real part has fundamental influence in the structure of dσ/dtd\sigma/dt at intermediate and large t|t| values. We discuss the 540/546 GeV and 1.8/1.96 TeV data from CERN SPS and Fermilab TEVATRON and the 7 TeV results from TOTEM measurements at LHC, and investigate the extrapolation to 14 TeV and higher energies.

Keywords

Cite

@article{arxiv.1305.3589,
  title  = {Energy Dependence of Profile Functions in $\rm{p\bar p}$ and $\rm pp$ Scattering},
  author = {Anderson Kendi Kohara and Erasmo Ferreira and Takeshi Kodama},
  journal= {arXiv preprint arXiv:1305.3589},
  year   = {2013}
}

Comments

9 pages, 11 figures (20 eps files), LISHEP 2013 Workshop Proceedings