17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

e+p high Q2 neutral current cross sections and structure function xF3

19 Jul 2013, 09:00
E1 (KTH Campus)


KTH Campus

Talk presentation QCD QCD


Allen Caldwell (Max Planck Institute) Allen Christopher Caldwell (Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)


The cross sections for neutral current deep inelastic scattering in e+p collisions with a longitudinally polarised positron beam have been measured using the ZEUS detector at HERA. The single-differential cross-sections dsigma/dQ2, dsigma/dx and dsigma/dy and the double-differential cross sections in Q2 and x are measured in the kinematic region Q2 > 185 GeV2 for both positively and negatively polarised electron beams and for each polarisation state separately. The measurements are based on an integrated luminosity of 136 pb-1 taken in 2006 and 2007 at a centre-of-mass energy of 318 GeV. The structure functions xF3 and xF3{γZ} are determined by combining the e+p results presented in this analysis with previously measured e-p neutral current data. The measured cross sections are compared to the predictions.

Primary author

Aharon Levy (Tel Aviv University (IL))

Presentation Materials