Determination of the strong coupling constant from the inclusive jet cross section in pp collisions at {radical}(s)=1.96 TeV
Journal Article
·
· Physical Review. D, Particles Fields
- Joint Institute for Nuclear Research, Dubna (Russian Federation)
- University of Oklahoma, Norman, Oklahoma 73019 (United States)
- Michigan State University, East Lansing, Michigan 48824 (United States)
We determine the strong coupling constant {alpha}{sub s} and its energy dependence from the p{sub T} dependence of the inclusive jet cross section in pp collisions at {radical}(s)=1.96 TeV. The strong coupling constant is determined over the transverse momentum range 50<p{sub T}<145 GeV. Using perturbative QCD calculations to order O({alpha}{sub s}{sup 3}) combined with O({alpha}{sub s}{sup 4}) contributions from threshold corrections, we obtain {alpha}{sub s}(M{sub Z})=0.1161{sub -0.0048}{sup +0.0041}. This is the most precise result obtained at a hadron-hadron collider.
- OSTI ID:
- 21313432
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 80, Issue 11; Other Information: DOI: 10.1103/PhysRevD.80.111107; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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