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.
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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 |
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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 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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