# Structures in the diffraction cone: the "break" and "dip" in high-energy proton-proton scattering

## TL;DR

This paper discusses the correlation between the 'break' and 'dip' structures in the diffraction cone of high-energy proton-proton scattering, emphasizing their energy-dependent behavior and implications for data analysis.

## Contribution

It highlights the importance of considering the correlation between the 'break' and 'dip' structures for accurate interpretation of high-energy elastic scattering data.

## Key findings

- The 'break' remains fixed around t=-0.1 GeV^2 across energies.
- The 'dip' moves logarithmically inward with increasing energy.
- At LHC energies, the 'dip' approaches the 'break', affecting their analysis.

## Abstract

Anticipating forthcoming publication by the TOTEM collaboration of low-t elastic scattering data at \sqrt{s}=13 and 2.76 TeV, hereby we emphasize the correlation between two prominent structures seen upon the otherwise exponential diffraction cone, namely a "break" staying fixed around t=-0.1 GeV^2 and a dip moving with energy logarithmically inwards; while at the ISR the two structures are separated by a distance of about 1~GeV^2, at the LHC the dip comes close to the periphery of the "break", thus affecting its parametrization. An unbiased disentangling and identification of the break at the LHC should account for this correlation.