Measurement of high-Q**2 neutral current deep inelastic e- p scattering cross sections with a longitudinally polarised electron beam at HERA
(2009) European Physical Journal C. Particles and Fields — Vol. 62, p. 625-658 (2009)
Files
No attached file found for this publication.
Details
- Authors
- et. al.
- Abstract
- (en) Measurements of the neutral current cross sections for deep inelastic scattering in e^- p collisions at HERA with a longitudinally polarised electron beam are presented. The single-differential cross-sections dsigma/dQ^2, dsigma/dx and dsigma/dy and the double-differential cross sections in Q^2 and x are measured in the kinematic region y < 0.9 and Q^2 > 185 GeV^2 for both positively and negatively polarised electron beams and for each polarisation state separately. The measurements are based on an integrated luminosity of 169.9 pb^-1 taken with the ZEUS detector in 2005 and 2006 at a centre-of-mass energy of 318 GeV. The structure functions xF_3 and xF_3^{\gamma Z} are determined by combining the e^- p results presented in this paper with previously measured e^+ p neutral current data. The asymmetry parameter A^- is used to demonstrate the parity violating effects of electroweak interactions at large spacelike photon virtuality. The measurements agree well with the predictions of the Standard Model. Comment: 55 pages, 9 figures, 19 tables
- Affiliations
Citations
Piotrzkowski, K., Chekanov, S., de Favereau, J., & et al. (2009). Measurement of high-Q**2 neutral current deep inelastic e- p scattering cross sections with a longitudinally polarised electron beam at HERA. European Physical Journal C. Particles and Fields, 62, 625-658. https://doi.org/10.1140/epjc/s10052-009-1055-6 (Original work published 2009)