High Q2 Cross Sections, Electroweak Measurements and Physics Beyond Standard Model at HERA

TL;DR

HERA's extensive ep collision data from 1992-2007 has been used to study proton structure, test QCD and electroweak theory, and search for new physics, but no evidence for phenomena beyond the Standard Model was observed.

Contribution

This paper compiles and analyzes the full HERA data set to provide comprehensive measurements of Q2 cross sections, electroweak interactions, and constraints on new physics beyond the Standard Model.

Findings

Precise measurements of high Q2 cross sections.

No evidence of physics beyond the Standard Model.

Validation of QCD and electroweak predictions.

Abstract

HERA, the only ep collider, operated in the years 1992-2007 at centre-of-mass energies of 300-320 GeV in Hamburg, Germany. Deep inelastic neutral and charged current scattering at HERA provides the possibility to study the structure of the proton, the dynamics of strong interactions and test quantum chromodynamics (QCD) over a huge kinematic range. Both, neutral and charged current interactions provide complementary information on the QCD and electroweak parts of the Standard Model. In addition, HERA data allow for indirect searches for new phenomena originating at large scales, however, no evidence for the new physics has been found. The full statistics of data collected at HERA have been used for most of the measurements performed by H1 and ZEUS which are presented in this document.