6533b828fe1ef96bd1287865
RESEARCH PRODUCT
Exclusive muoproduction on transversely polarised protons and deuterons
O.p. GavrichtchoukM. ZiembickiL. SinhaS. SarkarL. SteigerA. PadeeT. MatsudaA. SrnkaS. DasguptaA.v. EfremovG. D. AlexeevW. DünnweberA. AustregesiloA. AustregesiloC. EliaR. BertiniAndrea FerreroG. PiraginoJean-francois RajotteD.i. RyabchikovM. WilfertI. KonorovI. KonorovE. RondioK. ZarembaM. KrämerS.-u. ChungZ.v. KroumchteinL. LauserA.s. NunesD. PanzieriS. UhlM. GiorgiS. GoertzC. QuintansF.h. HeinsiusV.a. PolyakovG. SbrizzaiA. ZvyaginT. LiškaMichal DziewieckiS. NeubertLaura SilvaA. MagnonS. GrabmüllerA. AmorosoFrançois HerrmannL. DharaC. BraunB. GrubeB. BadelekS. KoblitzN. Du Fresne Von HohenescheN. Du Fresne Von HohenescheT. SchlüterE. RoccoV. DuicM. ChiossoO. KouznetsovFrank KleinP.d. EversheimAram KotzinianR. WindmoldersG.i. SmirnovB. KetzerA. FilinAnne-laure MartinFranco BradamanteK. KurekG.v. KhaustovYu. KisselevFabrice GautheronH. SuzukiM. SluneckaW. WiślickiMurray MoinesterL. SchmittJ. PochodzallaM. BücheleJ. PolakM. A. FaesslerB. GobboK. SchönningAlexey AntonovCh. HöppnerA. BravarJ. LichtenstadtS. PlatchkovS. SosioM. OstrickE. M. KabußV.yu. AlexakhinK. BickerK. BickerW. EyrichW. SchröderNour MakkeJ.h. KoivuniemiJ. BielingN. I. ZhuravlevYu. IvanshinP. BordaloR. SulejD. KangFederica SozziI.a. SavinE. PerevalovaO.yu. DenisovF. KunneC. FrancoM. StolarskiN. DʼhoseA. MorrealeR. JahnA. KorzenevM. QuaresmaS. SchopfererV. RapatskyP. SchiavonP. JasinskiE. BurtinJ.m. FriedrichJ. BisplinghoffS.s. DasguptaT. NegriniR. PankninN.s. RossiyskayaT. NagelJ. PretzVladimir NikolaenkoW.-d. NowakR. JoostenM.g. SapozhnikovM. V. ZavertyaevV.f. KonstantinovMiroslav SulcF. HinterbergerM. ViriusJ. Ter WolbeekA.a. LednevW. MeyerMaria Liz CrespoE. ZemlyanichkinaS. IshimotoL. CapozzaD.v. PeshekhonovK. KondoH. FischerT. MichigamiA. GrassoJ. BarthC. MarchandY. BedferG. PesaroM.g. AlekseevF. NerlingG. JegouA. SandaczR. GushterskiI. GnesiV. JaryK. KönigsmannT. GuthörlYu. AlexandrovGerhard K. MallotK. SchmidtBakur ParsamyanA. NagaytsevF. BalestraS. TakekawaOleg V. IvanovNorihiro DoshitaH. WollnyA. MaggioraR. BirsaS. DasA.g. OlshevskyA. N. SissakianD. NeyretV.n. KolosovA. MutterA. MutterN.v. VlassovJ. MarzecGünter BaumO.yu. ShevchenkoS. LevoratoR. GarfagniniM. FingerS. GerassimovS. GerassimovN. HorikawaK. KlimaszewskiV.d. SamoylenkoSergey DonskovAndres CicuttinG. ReicherzA. MannS. TessaroS. Dalla TorreAchim RichterF. HaasR. GeyerChristian SchillYu.a. KhokhlovS. RamosL. WangP. SznajderD. Von HarrachA. LehmannMaxence VandenbrouckeL. G. TkatchevC. HeßYu.v. MikhailovTakahiro IwataI. UmanJohannes BernhardA. GuskovM. BettinelliAndrea BressanF. TessarottoG.v. MeshcheryakovV. FrolovSoumen PaulMatthias SchottC. Adolphsubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsAngular momentumMuonMeson010308 nuclear & particles physicsmedia_common.quotation_subjectNuclear TheoryParton01 natural sciencesAsymmetryNuclear physics0103 physical sciencesHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsNucleonmedia_commonSpin-½description
The transverse target spin azimuthal asymmetry A(UT)(sin(phi-phi s)) in hard exclusive production of rho(0) mesons was measured at COMPASS by scattering 160 GeV/c muons off transversely polarised protons and deuterons. The measured asymmetry is sensitive to the nucleon helicity-flip generalised parton distributions E-q, which are related to the orbital angular momentum of quarks in the nucleon. The Q(2), x-B-j and p(T)(2) dependence of A(UT)(sin(phi-phi s)) is presented in a wide kinematic range: 1 (GeV/c)(2) < Q(2) < 10 (GeV/c)(2), 0.003 < xB(j) < 0.3 and 0.05 (GeV/c)(2) < p(T)(2) < 0.5 (GeV/c)(2) for protons or 0.10 (GeV/c)(2) < p(T)(2) < 0.5 (GeV/c)(2) for deuterons. Results for deuterons are obtained for the first time. The measured asymmetry is small in the whole kinematic range for both protons and deuterons, which is consistent with the theoretical interpretation that contributions from GPDs E-u and E-d approximately cancel. (C) 2012 Elsevier B.V. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-12-01 | Nuclear Physics B |