6533b7dafe1ef96bd126f680

RESEARCH PRODUCT

Hard single diffraction in p̄p collisions at s=630 and 1800 GeV

A. N. GalyaevD. K. ChoY. ArnoudM. MerkinR. IllingworthRaymond BrockBoaz KlimaR. BeuselinckS. WillisW. E. CooperS. DuensingG. EppleyArnaud DuperrinM. A. StrangS. J. De JongJong-sung YuC. S. MishraS. FuB. KothariN.v. MokhovH. Da MottaJ. G.r. LimaM. SosebeeV. M. AbazovM. I. MartinK. W. MerrittElemer NagyVasken HagopianL. LuekingH. WeertsW. KahlAndrew WhiteJ. F. BartlettA. P. HeinsonV. ManankovE. W. AndersonQ. XuLev DudkoT. G. TrippeA. S. ItoP. PétroffE. KajfaszE. PopkovR. E. HallB. PawlikQ. Z. LiSharon HagopianK. PapageorgiouWendy TaylorT. RockwellIain Alexander BertramN. ParuaA. GoussiouRoger MooreS. FuessMichael RijssenbeekD. MihalceaD. CaseyS. KrzywdzinskiSebastian GrinsteinB. OlivierNeeti ParasharJ. KotcherA. PatwaAnurag GuptaR. Van KootenZ. M. WangL. BabukhadiaVladimir GavrilovR. PiegaiaV. OguriGordon WattsR. SnihurP. M. TutsV. E. KuznetsovHarald FoxA. ZylberstejnShuichi KunoriN. GrafR. W. StephensRobert HiroskyA. V. KostritskiyV. SirotenkoAndrew BrandtA. AbdesselamA. M. KalininH. E. FiskL. J. PanZ. ZhouJ. SolomonVipin BhatnagarK. GounderA. AltonAndrei NomerotskiJohn HobbsF. LehnerH. GreenleeV. N. EvdokimovGustaaf BrooijmansB. M. SabirovO. V. EroshinY. SongPhillip GutierrezA. BrossSissel HansenT. NunnemannB. BaldinE. A. KozlovskyH.e. MiettinenD. EdmundsD. BauerV. VanievHoward GordonK. C. FrameChris HaysM. ZielinskiR. PartridgeX. ZhangJ. BarretoA. KhanovR. DeminaA. ZieminskiG. A. DavisL. ConeyG. GutierrezV. A. BezzubovV.v. AbramovN. SenR. GilmartinSerban ProtopopescuA. BessonJ. P. NegretY. DucrosV. L. MalyshevGilvan AlvesHeriberto Castilla-valdezR. L. MccarthyJ. WarcholAndre SznajderR. P. SmithM. GaoM. BhattacharjeeH. S. MaoS. P. DenisovW. M. LeeA. KharchilavaB. G. PopeP. DemineV. S. NarasimhamL. GroerYuri GershteinJ. M. HauptmanCecilia Elena GerberArnaud LucotteMichael ShupeMichael HildrethK. M. ChanDhiman ChakrabortyT. FahlandH. ZhengS. N. GurzhievM. R. KrishnaswamyD. FeinV. SimakAlexander KupcoJ. EstradaSergey KuleshovE. G. ZverevV. V. BabintsevD. CoppageB. AbbottG. GintherA. A. MayorovDon LincolnP. PadleyV. ZutshiAlexey VolkovY. A. YatsunenkoP. KrivkovaA. R. ClarkN. SotnikovaJianming QianP. W. BalmA. StoneDaniel John KarmgardA. V. KotwalHarrison ProsperM. RocoR. J. GenikElizabeth GallasT. McmahonRandy RuchtiMitchell WayneH. SchellmanJ. M. KohliVictor Daniel ElviraSergey ChekulaevJ. SnowC. HebertG. BriskinH. L. MelansonN. A. NaumannStefan GrünendahlR. A. SidwellE. FlattumChristophe RoyonJeffrey F. KraneViatcheslav StolinN. I. BojkoMossadek TalbyB. GómezUlrich HeintzMarc M BaarmandS. ReucroftJ. H. ChristensonMeenakshi NarainD. O'neilS. ChopraH. D. WahlElizaveta ShabalinaShashikant DugadC. LundstedtM. StrovinkDavid H. AdamsM. ZanabriaWinston KoCarlos AvilaJing LiMichael A. StraussAlice BeanSabine Crépé-renaudinH. JöstleinM. JaffréAriel SchwartzmanE. SmithU. BasslerF. BlekmanSuyong ChoiO. PetersF. CanelliVolker BuescherJ. T. EltzrothMelissa RidelR. KehoeJ. T. WhiteG. SteinbrückJ. N. ButlerP. D. GrannisR. JesikLaurent DuflotT. YasudaFrank FilthautD. HedinRajendran RajaK. A. JohnsAlberto SantoroSeong Keun KimM. DiesburgA. LeflatS. YoussefP. RubinovGregorio BernardiSuman Bala BeriD. DenisovJ. M. HeinmillerSrinivasan RajagopalanD. ShpakovA. JusteBobby Samir AcharyaH. A. NealS. Tentindo-repondHal EvansThomas FerbelT. C. BaconJ. T. LinnemannV. SorínB. ConnollyK. YipRichard BreedonD. P. StokerL. StutteA.s. DyshkantAlexander BelyaevPhilip BaringerPatrick SlatteryD. A. StoyanovaA. S. TurcotS. BanerjeeZeno Dixon GreenwoodD. A. WijngaardenMichael BegelK. BosK. GenserM. BuehlerM. ChungR. D. SchambergerY. FisyakN. R. StantonChristos LeonidopoulosJ. WomersleyMarvin JohnsonM. AbolinsD. KarmanovZ. CasilumIa IashviliA. V. KozelovN. K. MondalH. T. DiehlT. A. BoltonH. SinghD. WhitesonA. BoehnleinJ. EllisonA. K.a. MacielSa. JainP. I. GoncharovC. MiaoPushpalatha C BhatM. H.g. SouzaH. E. MontgomeryM. A.c. CummingsB. HoeneisenD. BuchholzLee SawyerGregory R SnowP.f. ErmolovB. KnutesonV. S. BurtovoiR. J. MadarasHaiyan WangS.a. KahnM. DemarteauF. BorcherdingS. DesaiG. SajotE. J. RambergP. YaminG. D. AlexeevFlera RizatdinovaMiguel MostafaSarah Catherine EnoP. A. RapidisFrançois FleuretF. NangA. JonckheereA. P. VorobievRichard B. LiptonF. Villeneuve-seguierStephan LinnA. BadenN. OshimaDaria ZieminskaG. C. BlazeyM. A. KubantsevStephen WimpennyT. MarshallR. YamadaDarien WoodNicholas John HadleyS. BlessingScott SnyderR. K. ShivpuriJohn RutherfoordD. R. ClaesC. LuoMary Beth AdamsS. DoulasJames C. GreenKaushik DeEmanuela BarberisD. CuttsWagner CarvalhoGreg LandsbergL. T. GossCharles LeggettY. KulikM. PaternoK. SoustruznikTulika BoseH. HaggertyF. BeaudetteM. B. PrzybycienS. M. TripathiR. EngelmannS. N. AhmedM. FortnerN. W. ReayY. D. MutafYu-tin HuangNikos VarelasBing ZhouL. S. Vertogradov

subject

DiffractionPhysicsParticle physicsNuclear and High Energy Physics010308 nuclear & particles physicsDetectorEmpty setHERAJet (particle physics)01 natural sciencesNuclear physicsPomeron0103 physical sciencesMomentum lossRapidityHigh Energy Physics::Experiment010306 general physics

description

Using the D empty set detector, we have studied events produced in (p) over barp collisions that contain large forward regions with very little energy deposition ("rapidity gaps") and concurrent jet production at center-of-mass energies of roots = 630 and 1800 GeV. The fraction of events with forward or central jets associated with rapidity gaps is compared to predictions for hard diffraction. We also extract the momentum loss for scattered protons in such processes. (C) 2002 Elsevier Science B.V. All rights reserved.

10.1016/s0370-2693(02)01364-3http://dx.doi.org/10.1016/s0370-2693(02)01364-3