TL;DR
This paper reports new electroweak measurements from HERA, including cross sections, limits on quark radius and couplings, and W boson properties, advancing understanding of electroweak interactions at high energies.
Contribution
It provides the first combined electroweak analysis from HERA data, including new high Q^2 measurements and limits on contact interactions and quark couplings.
Findings
New high Q^2 neutral current cross sections
Limits on quark radius and quark-Z couplings
Measurements of W boson production and polarization
Abstract
New preliminary electroweak results from the HERA lepton-proton collider experiments H1 and ZEUS are presented. These include new high Q^2 neutral current cross section measurements and limits on a possible quark radius, in the search for contact interactions, and on the quark-Z couplings, extracted in combined electroweak and QCD fits. Furthermore, new charged current cross section measurements as a function of the lepton-beam polarisation are presented, as well as charged current measurement results, using the combined HERA I data from H1 and ZEUS. Finally, measurements of the single W boson production cross section and the W boson polarisation fractions are presented.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Computational Physics and Python Applications · High-Energy Particle Collisions Research