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- Title
Jet production in ep collisions at high Q<sup>2</sup> and determination of α<sub> s</sub>.
- Authors
Aaron, F.; Alexa, C.; Alimujiang, K.; Andreev, V.; Antunovic, B.; Asmone, A.; Backovic, S.; Baghdasaryan, A.; Barrelet, E.; Bartel, W.; Begzsuren, K.; Belousov, A.; Bizot, J.; Boudry, V.; Bozovic-Jelisavcic, I.; Bracinik, J.; Brandt, G.; Brinkmann, M.; Brisson, V.; Bruncko, D.
- Abstract
The production of jets is studied in deep-inelastic e± p scattering at large negative four momentum transfer squared 150< Q2<15000 GeV2 using HERA data taken in 1999–2007, corresponding to an integrated luminosity of 395 pb−1. Inclusive jet, 2-jet and 3-jet cross sections, normalised to the neutral current deep-inelastic scattering cross sections, are measured as functions of Q2, jet transverse momentum and proton momentum fraction. The measurements are well described by perturbative QCD calculations at next-to-leading order corrected for hadronisation effects. The strong coupling as determined from these measurements is $\alpha_{s}(M_{Z})=0.1168\pm0.0007\,\mathrm{(exp.)}{}^{+0.0046}_{-0.0030}\,\mathrm{(th.)}\pm 0.0016$ (PDF).
- Subjects
COLLISIONS (Nuclear physics); MOMENTUM transfer; PROTONS; PARTICLES (Nuclear physics); NUCLEAR physics
- Publication
European Physical Journal C -- Particles & Fields, 2010, Vol 65, Issue 3/4, p363
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-009-1208-7