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Measurement of Neutral and Charged Current Cross Sections in Electron-Proton Collisions at High Q^2
- Source :
- European physical journal : C : particles and fields
- Publication Year :
- 2000
-
Abstract
- The inclusive e^-p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA, in the range of four-momentum transfer squared Q^2 between 150 and 30000 GeV^2, and Bjorken x between 0.002 and 0.65. The data were taken in 1998 and 1999 with a centre-of-mass energy of 320 GeV and correspond to an integrated luminosity of 16.4 pb^(-1). The data are compared with recent measurements of the inclusive neutral and charged current e^+p cross sections. For Q^2>1000 GeV^2 clear evidence is observed for an asymmetry between e^+p and e^-p neutral current scattering and the generalised structure function xF_3 is extracted for the first time at HERA. A fit to the charged current data is used to extract a value for the W boson propagator mass. The data are found to be in good agreement with Standard Model predictions.<br />39 pages, 10 figures, 10 tables
- Subjects :
- Physics
Particle physics
Range (particle radiation)
Luminosity (scattering theory)
Physics and Astronomy (miscellaneous)
Neutral current
Proton
FOS: Physical sciences
HERA
Electron
Standard Model
High Energy Physics - Experiment
High Energy Physics - Experiment (hep-ex)
High Energy Physics::Experiment
Engineering (miscellaneous)
Charged current
Subjects
Details
- Language :
- English
- ISSN :
- 14346044
- Database :
- OpenAIRE
- Journal :
- European physical journal : C : particles and fields
- Accession number :
- edsair.doi.dedup.....5e848dd7b0f8275d2293ab4b567aed3b