6533b820fe1ef96bd12791d3

RESEARCH PRODUCT

Quark and gluon distributions and $\alpha_{s}$ from nucleon structure functions at low $x$

Tjeerd KetelA. PaićQuentin IngramM. Van Der HeijdenChiara MariottiAmedeo StaianoM. SzleperJ. OberskiE. RondioF. SeverK. RöhrichA. MilsztajnA. WitzmannC. PeroniR. A. SchumacherC. BrogginiL. FluriA. BrüllRoland WindmoldersGerhard K. MallotGerhard K. MallotM. BallintijnMichele ArneodoK. Janson-prytzA. ArvidsonC. A. HeuschD. SandersR. RiegerUlrich LandgrafF. KleinJ. NassalskiM. I. FerroroE.m. KabußB. PovhB. PovhT. LindqvistF. ZetscheM. SieblerThomas WalcherT. GranierA. SimonJ. L. VuilleumierS. KullanderW. J. BurgerL. RopelewskiW. BrücknerY. TzamouranisP. BjörkholmU. GaulC. ScholzT.-a. ShibataK. RithG. BaumR. SeitzD. NowotnyA. SandaczM. VirchauxM. BotjeR. Van DantzigG. Van MiddelkoopJ. BeaufaysY. MizunoA. DyringD. Von HarrachJ. CiborowskiH. EngelienI. G. BirdB. BadelekR. KaiserM. De Jong

subject

QuarkNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::Latticedeep inelastic scattering: muon deuteronmuon deuteron: deep inelastic scatteringPARTON DENSITIESJet (particle physics)530CROSS-SECTIONSNuclear physicsnumerical calculations: interpretation of experimentsstrong interaction: coupling constant90: 280 GeVDEEP INELASTIC-SCATTERING; LEADING ORDER; QUANTUM CHROMODYNAMICS; PERTURBATION-THEORY; PARTON DENSITIES; CROSS-SECTIONS; FREEDOM; MSBAR; JET; NMCdeep inelastic scattering: muon pp: structure functionNMCCoupling constantQuantum chromodynamicsPhysicsQUANTUM CHROMODYNAMICSLEADING ORDERHigh Energy Physics::Phenomenologydeuteron: structure functiongluon: momentum spectrumperturbation theory: higher-orderPerturbative QCDDeep inelastic scatteringquark: momentum spectrumFREEDOMGluondependence: momentum transferJETMSBARmuon p: deep inelastic scatteringPERTURBATION-THEORYDEEP INELASTIC-SCATTERINGHigh Energy Physics::Experimentcoupling constant: strong interactionNucleonParticle Physics - Experiment

description

Abstract The Q2 dependence of the structure functions F2p and F2d recently measured by the NMC is compared with the predictions of perturbative QCD at next-to-leading order. Good agreement is observed, leading to accurate determinations of the quark and gluon distributions in the range 0.008 ⩽ × ⩽ 0.5. The strong coupling constant is measured from the low x data; the result agrees with previous determinations.

10.1016/0370-2693(93)91530-zhttp://cds.cern.ch/record/249296