6533b854fe1ef96bd12af5fe
RESEARCH PRODUCT
The Deuteron Spin-dependent Structure Function g1(d) and its First Moment
Daniel MatthiäF. MassmannS. RamosK. KondoK. KondoT. MatsudaG. VenugopalY. BedferJ. NassalskiP.d. EversheimJ. FranzA. LehmannS.s. DasguptaL. DharaK. KowalikV. FrolovF. TessarottoB. BadelekL. MasekS. GerassimovS. GerassimovN. HorikawaD.i. RyabchikovB. KetzerJ. MarroncleV.p. SugonyaevL. G. TkatchevSergey DonskovD. PanzieriJ. LichtenstadtA. MaximovS. PaulI. IvanchinN.p. KravchukT. LiškaV.d. SamoylenkoV. DiazV. DiazK. KlimaszewskiK. ZarembaD. SeeharschMichael SeimetzS. TessaroV.a. PolyakovR. BertiniAndrea FerreroA. AmorosoColin BernetAndres CicuttinJ. HannappelJ. HannappelP. FaulandW. SchroederA.m. RozhdestvenskyR. ZieglerYu.a. KhokhlovA. SrnkaV.f. ObraztsovA.m. DinkelbachA.v. EfremovH.-w. SiebertH.-w. SiebertA. JanataG.v. KhaustovG. ReicherzM. LeberigM. LeberigJ. KubartAram KotzinianAram KotzinianDaniel B. KramerR. C. WebbM. BeckerZ.v. KroumchteinR. WindmoldersN.i. JouravlevS. HorikawaE.v. KomissarovS. Dalla TorreW. MeyerMaria Liz CrespoM.e. LadyginM. Von HodenbergO.a. GrajekT. IwataW. EyrichA. GrassoF.h. HeinsiusK. KurekJ.m. FriedrichJ. BisplinghoffC. QuintansC. IlgnerC. IlgnerA. GuskovM. BettinelliD. DemchenkoAlessandro BressanD. SetterC. MarchandS. KoblitzA. PadeeI. HornN.v. VlassovK. NikolaevD. Von HarrachE. ZemlyanichkinaGünter BaumO.yu. ShevchenkoPaolo PaganoYu. AlexandrovNorihiro DoshitaNorihiro DoshitaE. M. KabußA. MagnonN. DedekN.a. KoutchinskiN. D'hoseI.a. SavinJ. BallV.i. NikolaenkoMassimo LamannaMassimo LamannaYu. KisselevYu. KisselevJ. ZhaoA. N. SissakianR. HermannJ. PolakV.n. KolosovR. GarfagniniF. StinzingVladimir PeshekhonovR. BirsaM. OstrickM. OstrickV.a. DorofeevM.g. SapozhnikovV.v. TchalishevM. FingerO. KouznetsovYu.v. MikhailovChristian SchillV.n. BytchkovS. CostaSarit K. DasS. GoertzS. GoertzD.v. PeshekhonovJ.h. KoivuniemiJ.h. KoivuniemiE. RondioFranco BradamanteO.yu. DenisovOleg V. IvanovL. SchmittS. PanebiancoJ. BarthM.p. BussaA.i. IoukaevG.b. PontecorvoVictor KukhtinAlan D. MartinP. SchiavonT. NagelJ. M. Le GoffJ. PretzL. FerreroV. DuicA. ChapiroM. StolarskiF. KunneS. ProcureurC. HeßA.a. PopovB. GrubeMurray MoinesterE. BurtinV.f. KonstantinovSebastian TrippelA. SandaczM. SluneckaW. WiślickiA.s. KorentchenkoB. GobboA. MielechA. MielechFrank KleinQ. WeitzelM. ViriusA. TeufelR. KuhnS. PlatchkovM. MaggioraO. NähleH. FischerE. WeiseE. WeiseA.g. OlshevskyT. HasegawaA. GorinD. NeyretJ. MarzecG.v. KrivokhizhinMiroslav SulcF. HinterbergerO.p. GavrichtchoukL. SinhaG. PiraginoM.g. AlexeevA.a. NozdrinM. GiorgiGrzegorz BronaGerhard K. MallotF. SozziA. ZvyaginH. SantosA. ColavitaR. JahnS. NelibaF. HaasR. GeyerD. KangK. KönigsmannA.a. LednevI. LudwigA. MaggioraI. KonorovI. KonorovA. KorzenevM.l. ColantoniS. HedickeJ. PochodzallaR. De MasiP. BordaloF. BalestraM. V. ZavertyaevG. D. AlexeevW. DünnweberG.i. SmirnovFabrice GautheronM. A. FaesslerV.yu. AlexakhinR. SulejR. JoostenLaura Silvasubject
Nuclear and High Energy PhysicsParticle physicsg(1)FOS: Physical sciencesAbsolute valuespinspin structure function g101 natural sciencesCOMPASSHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)polarised deep inelastic scatteringdeep inelastic scatteringstructure function0103 physical sciencesCOMPASS experimentA(1)polarised deep inelastic scattering; COMPASS; spin structure function g1; QCD analysisSinglet state010306 general physicsSpin-½Quantum chromodynamicsPhysics010308 nuclear & particles physicsDeep inelastic scatteringGluonQCD analysisDistribution functionHigh Energy Physics::ExperimentParticle Physics - Experimentdescription
We present a measurement of the deuteron spin-dependent structure function g1d based on the data collected by the COMPASS experiment at CERN during the years 2002-2004. The data provide an accurate evaluation for Gamma_1^d, the first moment of g1d(x), and for the matrix element of the singlet axial current, a0. The results of QCD fits in the next to leading order (NLO) on all g1 deep inelastic scattering data are also presented. They provide two solutions with the gluon spin distribution function Delta G positive or negative, which describe the data equally well. In both cases, at Q^2 = 3 (GeV/c)^2 the first moment of Delta G is found to be of the order of 0.2 - 0.3 in absolute value.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-01-01 |