6533b833fe1ef96bd129b698

RESEARCH PRODUCT

Measurement of thepp¯→WZ+Xcross section ats=1.96  TeVand limits onWWZtrilinear gauge couplings

A. AltonA. AltonD. A. StoyanovaHelio NogimaM. SosebeeB. TillerF. LehnerL. S. VertogradovL. DuflotS. W. YounE. Von ToerneR. G. WagnerMichael BegelL. BagbyFreya BlekmanEduardo De Moraes GregoresS. HossainY. ArnoudBoris TuchmingAbdenour LounisA. JonckheereMarkus WobischB. ÅSmanB. ÅSmanB. ÅSmanG. GrenierG. GrenierK. M. ChanChristian ZeitnitzI. HallA. LobodenkoR. BernhardA. P. HeinsonLuiz MundimC. Belanger-champagneC. Belanger-champagneC. Belanger-champagneL. ChristofekRobert HarringtonLimin WangMarc-andre PleierN. A. NaumannW. E. CooperN. OshimaYann CoadouA. BadenG. C. BlazeyAndrew BrandtL. ZivkovicA. MendesMichael A. StraussDaniel BlochW. M. Van LeeuwenDaria ZieminskaS. ReucroftM. CookeR. D. SchambergerR. E. HallMikko VoutilainenMikko VoutilainenI. TorchianiW. L. Prado Da SilvaArnaud DuperrinA. WengerA. WengerKirti RanjanCarsten HenselKaushik DeV. BuescherR. YamadaEmanuela BarberisKazunori HanagakiP. HaefnerDongliang ZhangM. RominskyT. R. WyattD. KäferV. M. KorablevJong-sung YuJean-francois GrivazJun GuoQ. Z. LiS. KapplerAshok KumarP. PolozovS. H. AhnTiefu ZhaoTae Jeong KimF. CharlesM. PangilinanTulika BoseAriel SchwartzmanP. JonssonP. RenkelM. ArthaudMaxim PerfilovA. RakitineP.f. ErmolovJ. A. ParsonsJ. OstaB. PenningPushpalatha C BhatO. AtramentovD. KropD. K. ChoM. FordReiner HauserL. BerntzonMarvin JohnsonT. ScanlonS. KermicheM. H.l.s. WangSuman Bala BeriFrederic DeliotV. M. PodstavkovMarco VerzocchiSharon HagopianM. FortnerB. ClementChristopher George TullyA. K.a. MacielYvonne PetersC. MagassTheodoros ChristoudiasDugan O'neilE. G. ZverevThomas HebbekerD. KhatidzeM. MuldersFlorian LacroixMary Beth AdamsPh GrisW. GeistBrad AbbottP. L.m. Podesta-lermaP. L.m. Podesta-lermaP. HoubenA. V. KozelovDmitri TsybychevR. L. MccarthyL. BellantoniA. PatwaS. CihangirVivian O'dellMark OwenDenis GeléN. M. CasonHelena MalbouissonM. ArovG. ObrantB. HoeneisenLee SawyerC. AyShabnam JabeenM. MerkinY. M. KharzheevPatrick SlatteryG. J. Otero Y GarzónPierre PetroffA. JusteG. S. MuanzaG. S. MuanzaA. F. BarfussV. A. BezzubovJ. P. NegretJ. KasperTodd AdamsS. DesaiPetr VokacT. H. BurnettMarcia BegalliK. HernerD. OnoprienkoF. TissandierAlexander GrohsjeanFabrice CoudercA. V. FerapontovR. Van KootenJ. N. ButlerP. D. GrannisJ. R. KalkNorbert WermesShuichi KunoriH. GreenleeLev UvarovM. D. CorcoranP. K. MalD. M. StromB. C.k. CaseyJ. SteeleMeenakshi NarainJ. HaleyA. LeflatH. E. FiskJ. A. BenitezAndrew WhiteM. AbolinsS. Söldner-remboldM. MichautZ. LiuStephen WimpennyR. PiegaiaM. C. CousinouRaymond BrockL. HanS. BunichevUlrich HeintzE. StraussD. KarmanovR. K. MommsenA. BrossS. BealePedro G MercadanteA. ZieminskiMichael HildrethS.a. KahnM. WetsteinSudhir MalikIa IashviliJ. D. DegenhardtS. LammersMartin GrunewaldBoaz KlimaI. KatsanosR. BeuselinckC. BiscaratC. BiscaratD. KauD. LamSerban ProtopopescuChristophe OchandoG. SajotG. SavageFrank FilthautM. DiesburgBrajesh C ChoudharyV. V. TokmeninLiang LiRaimund StröhmerV. SimakN. K. MondalP. SchieferdeckerY. HuH. T. DiehlT. A. BoltonM. KopalA. Sanchez-hernandezM. DemarteauV. ZutshiM. S. RangelY. PogorelovS. FuS. UzunyanGraham WilsonH. Da MottaJulia S. MeyerD. GillbergBrian Thomas MartinH. A. NealCarmen GarcíaA. BoehnleinAndy HaasM. A. StrangAndrei NomerotskiJ. T. LinnemannO. MundalP. PadleyLev DudkoAran Garcia-bellidoR. F. RodriguesS. StrandbergS. StrandbergS. StrandbergK. YipThomas TrefzgerR. UnalanMilos LokajicekJ. EllisonA. EvdokimovA. TanasijczukG. HeskethA. S. ItoA. MelnitchoukJohn HobbsT. MilletT. MilletL. StutteGregory J PawloskiAndrew AskewM. AhsanSa. JainS. FuessHarrison ProsperT. KurcaT. KurcaY. XieAmnon HarelJ. BarretoA.s. DyshkantH. NilsenMitchell WayneH. SchellmanJ. M. KohliM. S. AnzelcBrigitte VachonMarc WeberSarah Catherine EnoG. WeberHorst SeveriniStefan GrünendahlV. HynekJiri KvitaD. ChakrabortyA. ChandraI. Ripp-baudotP. J. Van Den BergJessica LevêqueMarc BesanconJ. TempleA. MeyerM. BuehlerG. D. AlexeevV. M. AbazovV. SharyHwi Dong YooZdenek HubacekMossadek TalbyT. NunnemannB. BaldinDon LincolnErich VarnesF. BadaudAshok DasM. H.g. SouzaB. GómezF. GuoC. T. PotterHeriberto Castilla-valdezJ. SekaricShashikant DugadJunjie ZhuV. V. LipaevJ. LellouchFlera RizatdinovaS. J. HongRichard B. LiptonKristian HarderD. BolineD. EdmundsMansoora ShamimIain Alexander BertramSergio F NovaesP. LebrunP. LebrunMichael RijssenbeekE. AguiloB. SpurlockZeno Dixon GreenwoodDarien WoodD. CuttsAndre SznajderYuri GershteinAndre SopczakAvto KharchilavaB. AndrieuJing LiWagner CarvalhoM. NaimuddinElliott CheuT. SchliephakeGreg LandsbergCristina GaleaV. N. EvdokimovVictor Daniel ElviraAlexander KhanovYurii MaravinU. BasslerVladimir GavrilovH. KimS. ChakrabartiNicholas John HadleyC. P. BuszelloPhilip BaringerPedrame BargassaReinhard SchwienhorstPeter LoveK. SoustruznikS. RobinsonGordon WattsV. SirotenkoN. J. BuchananJ. PiperS. BanerjeeS. BlessingR. J. MadarasN. KhalatyanS. YacoobRegina DeminaScott SnyderF. ChevallierPhillip GutierrezGeorge AlversonD. HedinJonas StrandbergY. EnariRupinder KaurJ. P. KonrathH. DongT. KuhlM. JaffréL. S. AncuT. MoulikR. K. ShivpuriAlexander KupcoAlberto SantoroJ. G.r. LimaGrigory SafronovP. MättigD. BuchholzN. ParuaR. IllingworthRandy RuchtiB. G. PopeCalvin A. JohnsonS. CalvetElizaveta ShabalinaD. R. ClaesGavin DaviesPhilippe CalfayanTimothy AndeenP. TamburelloP. RubinovJ. M. HauptmanCecilia Elena GerberAnna GoussiouG. GintherJ. DyerS. M. LiettiGregory R SnowP. H. KasperY. ScheglovKaushik DeJianming QianJan StarkHenry LubattiJ. CamminNikos VarelasBing ZhouLuis MendozaVipin BhatnagarE. De La Cruz-bureloR. PartridgeChristian AutermannKenneth BloomV. L. MalyshevH. S. MaoT. TooleS. UvarovB. QuinnC. SchwanenbergerAlice BeanMaria Elena PolRobert HiroskyA. M. KalininY. W. LiuD. BauerJovan MitrevskiG. GutierrezGilvan AlvesNikola MakovecKarl JakobsD. SmirnovP. LewisJ. SnowK. PetersSung Keun ParkS. AndersonR. OtecHarald FoxC. De Oliveira MartinsP. N. RatoffM. VaupelP. M. TutsMaksym TitovP. HanssonP. HanssonP. HanssonI. A. VasilyevElizabeth GallasSergey BurdinSergey BurdinM. EadsS. P. DenisovMichael MulhearnM. P. SandersJeroen HegemanN. GollubN. GollubN. GollubP. NeustroevSuyong ChoiR. JesikM. H. KirbyK. A. JohnsAaron DominguezG. AlkhazovD. V. BandurinC. JarvisS. J. De JongGregorio BernardiD. DenisovJ. M. HeinmillerHal EvansThomas FerbelLars SonnenscheinM. KirschW. M. LeeA. A. ShchukinFrank FiedlerE. KajfaszA. C.s. Assis JesusH. HoethGuennadi BorissovW. C. FisherT. GadfortM. ĆWiokP. VintNeeti ParasharA. V. PopovA. BellavanceGustaaf BrooijmansJ. WarcholS. J. ParkM. ZielinskiJ. HaysD. DugganK. W. MerrittJ. F. BartlettP. BanerjeeY. A. YatsunenkoRobert KehoeViatcheslav StolinJ. MolinaCarlos AvilaS. SumowidagdoSabine Crépé-renaudinM. YanS. BurkeDorothee SchaileM. HohlfeldWendy TaylorKee ChanRoger MooreV. SiccardiA. MagerkurthA. ZatserklyaniyB. S. AcharyaD. ShpakovChristophe RoyonH. D. WahlE. GalyaevT. YasudaP. SvoiskyP. VerdierP. VerdierM. PetteniJ. M. KalkDeidre BrownP. SkubicAdam L. LyonM. AnastasoaieP. RichArnulf QuadtArnulf QuadtElemer NagyD. WickeDennis Stephen MackinL. LoboF. Villeneuve-seguier

subject

PhysicsNuclear and High Energy PhysicsParticle physicsMuon010308 nuclear & particles physicsSigmaElectronGauge (firearms)Lambda01 natural sciencesParticle identificationNuclear physicsDistribution (mathematics)0103 physical sciences010306 general physicsBar (unit)

description

We present measurements of the process p (P) over bar -> WZ + X -> l 'nu(l ')l (l) over bar at root s = 1:96 TeV,where l and l ' are electrons or muons. Using 1 fb(-1) of data from the D0 experiment, we observe 13 candidates with an expected background of 4.5 +/- 0.6 events and measure a cross section sigma(WZ) = 2.7(-1.3)(+1.7) pb. From the number of observed events and the Z boson transverse momentum distribution, we limit the trilinear WWZ gauge couplings to -0: 17 <= lambda(Z) <= 0.21 (Delta k(Z) <= 0.29(lambda(Z) = 0) at the 95% C.L. for a form factor scale Lambda = 2 TeV. Further, assuming that Delta g(1)(Z) = Delta k(Z), we find -0.12 <= Delta k(Z) <= 0.29(lambda(Z) = 0) at the 95% C. L. These are the most restrictive limits on the WWZ couplings available to date.

https://doi.org/10.1103/physrevd.76.111104