Determination of the strong coupling constant from the inclusive jet cross section in pp collisions at {radical}(s)=1.96 TeV

Journal Article · Tue Dec 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.111107· OSTI ID:21313432

Abazov, V M; Alexeev, G D; Golovanov, G; Kharzheev, Y N; Malyshev, V L; Tokmenin, V V; Vertogradov, L S; Yatsunenko, Y A ^[1]; Abbott, B; Gutierrez, P; Hossain, S; Jain, S; Rominsky, M; Severini, H; Skubic, P; Strauss, M ^[2]; Abolins, M; Benitez, J A; Brock, R; Edmunds, D ^[3]

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1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
3. 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, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
COUPLING CONSTANTS
CROSS SECTIONS
ENERGY DEPENDENCE
GEV RANGE
HADRONS
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
STRONG-COUPLING MODEL
TEV RANGE 01-10
TRANSVERSE MOMENTUM