Do leptoquarks manifest themselves in ultra-high energy neutrino interactions?

TL;DR

This paper investigates the potential for detecting leptoquarks through ultra-high energy neutrino interactions, estimating their properties and assessing LHC discovery prospects based on neutrino scattering data.

Contribution

It introduces a method to estimate leptoquark masses and decay widths from neutrino-nucleon scattering at ultra-high energies, independent of leptoquark quantum numbers.

Findings

Estimated leptoquark mass around 1353 GeV with uncertainty

Reproduces energy dependence of neutrino-nucleon cross sections

Evaluates LHC's potential to discover these leptoquarks

Abstract

It is assumed that neutrino-nucleon scattering at ultra-high energies effectively proceeds through excitations of leptoquarks in neutrino-quark subprocesses. This approach reproduces the behavior of the energy dependence of the ultra-high energy neutrino-nucleon scattering cross sections and allows to estimate masses as well as the decay widths of the involved leptoquarks. For instance, this leads to the leptoquark mass $1353\pm230$ GeV in a way independent on the leptoquark quantum numbers. The discovery potential of the LHC for the leptoquarks is evaluated.