Orateur
Eram Rizvi
Description
Using the deep inelastic e+p and e-p neutral and charged current scattering cross sections, including data with polarised electron beams, a combined electroweak and QCD analysis is performed to determine vector and axial-vector couplings vq and aq of light quarks u and d to the Z0 boson accounting for their correlation with parton distributions. The precision has been improved in particular for vector couplings with respect to the published results based on the unpolarized HERA data only. The determinations from HERA are compared with those from LEP and Tevatron.
Auteur principal
Katja Krueger
(KIP, Heidelberg University, H1 Collaboration)
