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

Measurement of positron-proton neutral current cross sections at high Bjorken-x with the ZEUS detector at HERA

19 Jul 2013, 09:15
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)


New measurements of the differential cross sections for neutral current deep inelastic ep collisions up to Bjorken-x values equal to one are presented. The measurements were performed using the data collected with the ZEUS detector at HERA with sqrt(s) = 318 GeV and an integrated luminosities of 142(187) pb-1 for e+p(e-p) collisions. A new method was employed to reconstruct the kinematic variables and measure the cross sections for Q2 > 575 GeV^2. The data are considerably more precise than previously published measurements in this kinematic region and provide interesting tests of the parameterizations of the behavior of the cross section up to x=1.

Primary author

Aharon Levy (Tel Aviv University (IL))

Presentation Materials