Journal article
Multijet production at low x(Bj) in deep inelastic scattering at HERA
Nuclear physics. B, Vol.786(1-2), pp.152-180
12/10/2007
DOI: 10.1016/j.nuclphysb.2007.05.027
Abstract
Dijet and trijet production in deep inelastic ep scattering has been measured in the phase space region 10 < Q(2) < 100 GeV2 and 10(-4) < x(Bj) < 10(-2) using an integrated luminosity of 82 pb(-1) collected by the ZEUS experiment. The high statistics have made possible detailed studies of multijet production at low xBj. The dependence of dijet and trijet production on the kinematic variables Q(2) and x(Bj) and on the jet variables E-T,HCM(jet) and eta(jet)(LAB) is well described by perturbative QCD calculations which include NLO corrections. To investigate possible deviations with respect to the collinear factorisation approximation used in the standard pQCD approach, measurements of the correlations between the two jets with highest E-T,HCM(jet) have been made. At low x(Bj), measurements of dijet production with low azimuthal separation are reproduced by the perturbative QCD calculations provided that higher-order terms (O(alpha(3)(s))) are accounted for. Such terms increase the predictions of pQCD calculations by up to one order of magnitude when the two jets with the highest E-T,HCM(jet1,2) are not balanced in transverse momentum. This demonstrates the importance of higher-order corrections in the low-x(Bj) region.
Details
- Title: Subtitle
- Multijet production at low x(Bj) in deep inelastic scattering at HERA
- Creators
- S. ChekanovM. DerrickS. MagillB. MusgraveD. NicholassJ. RepondR. YoshidaM. C. K. Mattingly - Andrews UniversityM. Jechow - Humboldt-Universität zu BerlinN. Pavel - Humboldt-Universität zu BerlinA. G. Yaguees MolinaS. AntonelliP. AntonioliG. BariM. BasileL. BellagambaM. BindiD. BoscheriniA. BruniG. BruniL. CifarelliF. CindoloA. ContinM. CorradiS. De PasqualeG. LacobucciA. MargottiR. NaniaA. PoliniG. SartorelliA. ZichichiD. BartschI. BrockS. GoersH. HartmannE. HilgerH. -P. JakobM. JuengstO. M. KindA. E. Nuncio-QuirozE. PaulR. RennerU. SamsonV. SchoenbergR. ShehzadiM. WlasenkoN. H. BrookG. P. HeathJ. D. MorrisT. NamsooM. CapuaS. FazioA. MastroberardinoM. SchioppaG. SusinnoE. TassiJ. Y. KimK. J. Ma - Andrews UniversityZ. A. IbrahimB. KamaluddinW. A. T. Wan AbdullahY. NingZ. RenF. SciulliJ. Chwastowski - Humboldt-Universität zu BerlinA. EskreysJ. Figiel - Humboldt-Universität zu BerlinA. GalasM. GilK. Olkiewicz - Andrews UniversityP. StopaL. ZawiejskiL. AdamczykT. BoldI. Grabowska-BoldD. KisielewskaJ. LukasikM. PrzybycienL. SuszyckiA. KotanskiW. SlominskiV. Adler - Humboldt-Universität zu BerlinU. BehrensI. BlochC. BlohmA. BonatoK. Borras - Andrews UniversityR. CiesielskiN. CoppolaA. DossanovV. Drugakov - Humboldt-Universität zu BerlinJ. Fourletova - Humboldt-Universität zu BerlinA. GeiserD. GladkovP. GoettlicherJ. Grebenyuk - Humboldt-Universität zu BerlinI. GregorT. HaasW. Hain - Humboldt-Universität zu BerlinC. HornA. HuettmannB. KahleI. I. KatkovU. KleinU. KoetzH. KowalskiE. LobodzinskaB. LoehrR. MankelI. -A. Melzer-PellmannS. MiglioranziA. MontanariD. NotzL. RinaldiP. RoloffI. RubinskyR. SantarnartaU. SchneeklothA. SpiridonovH. StadieD. SzubaJ. Szuba - Humboldt-Universität zu BerlinT. TheedtG. WolfK. Wrona - Andrews UniversityC. YoungmanW. Zeuner - Humboldt-Universität zu BerlinW. Lohmann - Humboldt-Universität zu BerlinS. SchlenstedtG. BarbagliE. GalloP. G. PelferA. BambergerD. DoburF. KarstensN. N. VlasovP. J. BusseyA. T. Doyle - Andrews UniversityW. Dunne - Humboldt-Universität zu BerlinJ. Ferrando - Humboldt-Universität zu BerlinM. ForrestD. H. SaxonI. O. SkillicornI. GialasK. Papageorgiu - Andrews UniversityT. GosauU. HolmR. KlannerE. LohrmannH. SalehiP. SchleperT. Schoerner-SadeniusJ. Sztuk - Humboldt-Universität zu BerlinK. Wichmann - Andrews UniversityK. Wick - Andrews UniversityC. FoudasC. FryK. R. LongA. D. TapperM. KataokaT. MatsumotoK. Nagano - Andrews UniversityK. Tokushuku - Andrews UniversityS. YamadaY. Yamazaki - Humboldt-Universität zu BerlinA. N. BarakbaevE. G. BoosN. S. PokrovskiyB. O. ZhautykovV. Aushev - Humboldt-Universität zu BerlinD. SonJ. de Favereau - Humboldt-Universität zu BerlinK. Piotrzkowski - Andrews UniversityF. BarreiroC. GlasmanM. JimenezL. LabargaJ. del Peso - Humboldt-Universität zu BerlinE. RonM. SoaresJ. Terron - Humboldt-Universität zu BerlinM. ZambranaF. CorriveauC. LiuR. WalshC. ZhouT. TsurugaiA. AntonovB. A. DolgosheinV. SosnovtseA. StifutkinS. SuchkovR. K. DementievP. F. ErmolovL. K. GladilinL. A. KheinI. A. KorzhavinaV. A. KuzminB. B. LevchenkolO. Yu LukinaA. S. ProskuryakovL. M. ShcheglovaD. S. ZotkinS. A. ZotkinI. AbtC. BuettnerA. CaldwellD. KollarW. B. SchmidkeJ. Sutiak - Humboldt-Universität zu BerlinG. GrigorescuA. KeramidasE. KoffemanP. KooijmanA. PellegrinoH. TieckeM. VazquezL. WiggersN. BruemmerB. BylsmaL. S. DurkinA. LeeT. Y. LingP. D. AllfreyM. A. BellA. M. Cooper-SarkarA. CottrellR. C. E. DevenishB. FosterK. Korcsak-Gorzo - Andrews UniversityS. PatelV. Roberfroid - Humboldt-Universität zu BerlinA. RobertsonP. B. StraubC. Uribe-EstradaR. WalczakP. BellanA. BertolinR. BrugneraR. CarlinE. Dal CorsoS. DusiniA. GarfagniniS. LimentaniA. LonghinL. StancoM. TurcatoB. Y. OhA. RavalJ. Ukleja - Humboldt-Universität zu BerlinJ. J. WhitmoreY. Iga - Humboldt-Universität zu BerlinG. D'AgostiniG. MariniA. NigroJ. E. Cole - Humboldt-Universität zu BerlinJ. C. HartH. AbramowiczA. GabareenR. IngbirS. KananovA. LevyM. KuzeJ. Maeda - Humboldt-Universität zu BerlinR. HoriS. KagawaN. OkazakiS. ShimizuT. TawaraR. HamatsuH. KajiS. KitamuraO. OtaY. D. RiM. I. FerreroV. Monaco - Humboldt-Universität zu BerlinR. SacchiA. SolanoM. ArneodoM. RuspaS. FourletovJ. F. MartinS. K. BoutleJ. M. ButterworthC. GwenlanT. W. JonesJ. H. LoizidesM. R. SuttonM. WingB. BrzozowskaJ. Ciborowski - Humboldt-Universität zu BerlinG. GrzelakP. KulinskiP. LuzniakJ. Malka - Humboldt-Universität zu BerlinR. J. NowakJ. M. PawlakT. TymienieckaA. UklejaA. F. ZarneckiM. AdamusP. PlucinskiY. Eisenberg - Humboldt-Universität zu BerlinI. GillerD. HochmanU. KarshonM. RosinE. BrownsonT. DanielsonA. EverettD. KciraD. D. ReederP. RyanA. A. SavinW. H. SmithFf WolfeS. BhadraC. D. CatterallY. Cui - Humboldt-Universität zu BerlinG. HartnerS. MenaryU. NoorJ. Standage - Humboldt-Universität zu BerlinJ. Whyte - Humboldt-Universität zu BerlinZeus Collaboration
- Resource Type
- Journal article
- Publication Details
- Nuclear physics. B, Vol.786(1-2), pp.152-180
- DOI
- 10.1016/j.nuclphysb.2007.05.027
- ISSN
- 0550-3213
- eISSN
- 1873-1562
- Publisher
- Elsevier
- Number of pages
- 29
- Grant note
- PP/E000452/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) PP/E000673/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
- Language
- English
- Date published
- 12/10/2007
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627226002771
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