Small t elastic scattering and the rho parameter

Abstract

A simple application of Regge theory, with 9 free parameters, provides a good fit to elastic scattering data at small t from 13.76 GeV to 13 TeV. It yields a value for rho, the ratio of the real part of the forward amplitude to its imaginary part, close to 0.14 at 13 TeV. Although the exact value obtained for rho is sensitive to what functional form is chosen for the fit, there is no strong case for the presence of an odderon contribution to forward scattering.

3 pages + 8 figures

References in corpus (4)

• $pp$ and $\bar{p}p$ total cross sections and elastic scattering
• First determination of the $\rho$ parameter at $\sqrt{s}=13$ TeV -- probing the existence of a colourless three-gluon bound state
• Limited validity of West and Yennie integral formula for elastic scattering of hadrons
• Odderon: models vs experimental data - a short review of recent papers

Cited by in corpus (17)

• 50 Years of Quantum Chromodynamics
• Novel approaches in Hadron Spectroscopy
• Dark Sector Production via Proton Bremsstrahlung
• Glueballs as the Ithaca of meson spectroscopy
• Searching for the odderon in $pp\to pp{K}^{+}{K}^{-}$ and $pp\to pp{\mu }^{+}{\mu }^{-}$ reactions in the $\varphi (1020)$ resonance region at the LHC
• Coulomb-Nuclear Interference: Theory and Practice for pp-Scattering at 13 TeV
• Pomeron and Reggeon contributions to elastic proton-proton and proton-antiproton scattering in holographic QCD
• Soft-photon radiation in high-energy proton-proton collisions within the tensor-Pomeron approach: Bremsstrahlung
• Lack of evidence for an odderon at small t
• On the shape of nucleons at high energies
• Unitarisation dependence of diffractive scattering in light of high-energy collider data
• On the transverse size of hadrons at asymptotically high energies
• The ReBB model and its $H(x)$ scaling version at 8 TeV: Odderon exchange is a certainty
• Analytical representation for amplitudes and differential cross section of pp elastic scattering at 13 TeV
• Model-independent Odderon results based on new TOTEM data on elastic pp collisions at 8 TeV
• Searching for Odderon in Central Exclusive Processes at the LHC
• Impact of the $f$-Reggeon exchanges on the observables of the single diffractive dissociation of nucleon at ultrahigh energies