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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
22
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pubmed:dateCreated |
2003-12-19
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pubmed:abstractText |
Double-polarization asymmetries for inclusive ep scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally polarized NH3 target in the CLAS detector. The polarized structure function g(1)(x,Q2) was extracted throughout the nucleon resonance region and into the deep inelastic regime, for Q(2)=0.15-1.64 GeV2. The contributions to the first moment Gamma(1)(Q2)= integral g(1)(x,Q2) dx were determined up to Q(2)=1.2 GeV2. Using a parametrization for g(1) in the unmeasured low x regions, the complete first moment was estimated over this Q2 region. A rapid change in Gamma(1) is observed for Q2<1 GeV2, with a sign change near Q(2)=0.3 GeV2, indicating dominant contributions from the resonance region. At Q(2)=1.2 GeV2 our data are below the perturbative QCD evolved scaling value.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0031-9007
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pubmed:author |
pubmed-author:MarchandCC,
pubmed-author:KimKK,
pubmed-author:HoltropMM,
pubmed-author:KuhnJJ,
pubmed-author:TaylorSS,
pubmed-author:RossiPP,
pubmed-author:ClarkRR,
pubmed-author:YUH IHI,
pubmed-author:JenkinsDD,
pubmed-author:ShawJJ,
pubmed-author:SmithL CLC,
pubmed-author:KleinAA,
pubmed-author:HancockDD,
pubmed-author:LivingstonKK,
pubmed-author:WandHH,
pubmed-author:MuellerJJ,
pubmed-author:ThompsonRR,
pubmed-author:KinHH,
pubmed-author:LawrenceDD,
pubmed-author:CordaRR,
pubmed-author:SmithE SES,
pubmed-author:SmithTT,
pubmed-author:CummingsJ PJP,
pubmed-author:SalgadoCC,
pubmed-author:PolliEE,
pubmed-author:NelsonS OSO,
pubmed-author:AdamsGG,
pubmed-author:RicciMM,
pubmed-author:GirardPP,
pubmed-author:NiculescuII,
pubmed-author:BeareJJ,
pubmed-author:WellerHH,
pubmed-author:RiccardiGG,
pubmed-author:HardieJJ,
pubmed-author:MeyerC ACA,
pubmed-author:PetersonGG,
pubmed-author:HicksKK,
pubmed-author:SantoroJ PJP,
pubmed-author:MorandLL,
pubmed-author:ParkKK,
pubmed-author:BellinHH,
pubmed-author:WoodM HMH,
pubmed-author:FarhiLL,
pubmed-author:LonghiAA,
pubmed-author:PriceJ WJW,
pubmed-author:KlimenkoA VAV,
pubmed-author:ColemanAA,
pubmed-author:NiculescuGG,
pubmed-author:NapolitanoJJ,
pubmed-author:ConnellyJJ,
pubmed-author:YunJJ,
pubmed-author:RonchettiFF,
pubmed-author:GuilleSS,
pubmed-author:DICKE CEC,
pubmed-author:KimK YKY,
pubmed-author:RubinP DPD,
pubmed-author:O'BrienJ TJT,
pubmed-author:BradfordRR,
pubmed-author:AvakianHH,
pubmed-author:CarrowR ERE,
pubmed-author:KelleyJ HJH,
pubmed-author:KossowJJ,
pubmed-author:AugerTT,
pubmed-author:KeithCC,
pubmed-author:GayF JFJ,
pubmed-author:ZhouZZ,
pubmed-author:ZhangBB,
pubmed-author:HuJJ,
pubmed-author:ZhaoJJ,
pubmed-author:BarrowSS,
pubmed-author:DoughtyDD,
pubmed-author:WhisnantC SCS,
pubmed-author:GiladSS,
pubmed-author:BranfordDD,
pubmed-author:De VitaRR,
pubmed-author:RitchieB GBG,
pubmed-author:SobelD ODO,
pubmed-author:RipaniMM,
pubmed-author:McAleerSS,
pubmed-author:TaiutiMM,
pubmed-author:StrauchSS,
pubmed-author:AnghinolfiMM,
pubmed-author:SeelyMM,
pubmed-author:HOLTC SCS,
pubmed-author:CrabbDD,
pubmed-author:KuangYY
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