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Measurement of the strong coupling constant from inclusive jet production at the Tevatron (p)over-barp collider

Affolder, T; Akimoto, H; Akopian, A; Albrow, MG; Amaral, P; Amidei, D; Anikeev, K; ... CDF Collaboration, .; + view all (2002) Measurement of the strong coupling constant from inclusive jet production at the Tevatron (p)over-barp collider. PHYS REV LETT , 88 (4) , Article 042001. 10.1103/PhysRevLett.88.042001. Green open access

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Abstract

We report a measurement of the strong coupling constant, alpha(s)(M-Z), extracted from inclusive jet production in p (p) over bar collisions at root(s) = 1800 GeV. The QCD prediction for the evolution of alpha(s) with jet transverse energy E-T is tested over the range 40 < E-T < 450 GeV using E-T for the renormalization scale. The data show good agreement with QCD in the region below 250 GeV. The value of as at the mass of the Z(0) boson averaged over the range 40 < E-T < 250 GeV is found to be alpha(s)(M-Z) = 0.1178 +/- 0.0001(stat)(-0.0095)(+0.0081)(expt. syst). The associated theoretical uncertainties are mainly due to the choice of renormalization scale ((+6%)(-4%)) and input parton distribution functions (5%).

Type: Article
Title: Measurement of the strong coupling constant from inclusive jet production at the Tevatron (p)over-barp collider
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.042001
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.042001
Language: English
Keywords: DEEP-INELASTIC SCATTERING, HIGHER-ORDER CORRECTIONS, HADRONIC TAU-DECAYS, PARTON DISTRIBUTIONS, E(+)E(-) ANNIHILATION, SPECTRAL FUNCTIONS, GLOBAL ANALYSIS, CROSS-SECTION, ALPHA(S), GLUON
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/409068
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