6533b854fe1ef96bd12ae771

RESEARCH PRODUCT

Measurement of the differential cross sections for isolated direct photon pair production in pp¯ collisions at s=1.96 TeV

Y. W. LiuG. GutierrezHongfang LiuA. Sanchez-hernandezK. DevaughanAndreas Werner JungVipin BhatnagarA. MelnitchoukV. B. AnikeevD. SmirnovG. D. AlexeevFlera RizatdinovaWade Cameron FisherYuji EnariSergey BurdinS. P. DenisovD. KarmanovGraham WilsonA. JonckheereA. LobodenkoR. PartridgeT. G. ZhaoPushpalatha C BhatDaria ZieminskaJ. SnowS. DesaiPetr VokacKenneth BloomAndrew AskewV. A. KuzminB. HoeneisenLee SawyerD. N. BrownW. YeSudhir MalikIa IashviliI. Ripp-baudotBrajesh C ChoudharyA. MeyerMichael MulhearnV. L. MalyshevJ. KrausA. S. ItoSung Keun ParkL. Welty-riegerPedro G MercadanteA. DasKamil AugstenJ. SekaricMichael A. StraussF. BadaudD. MenezesM. S. JeongP. SvoiskyHui LiSuneel DuttHang YinT. NunnemannB. BaldinV. V. LipaevJ. LellouchA. AltonP. LebrunP. LebrunGavin Grant HeskethT. ScanlonGuo-ming ChenS. KermicheMeng WangAndrew WhiteG. AlkhazovP. N. RatoffE. E. BoosN. ProkopenkoHeriberto Castilla-valdezW. M. LeeB. C.k. CaseySuman Bala BeriV. HynekJ. M. YuS. AtkinsTodd AdamsY. N. KharzheevM. EadsJean-arcady MeyerMaksym TitovM. MerkinP. SkubicD. V. BandurinM. JaffréJoseph HaleyL. BagbyYvonne PetersE. De La Cruz-bureloKonstantinos PetridisVictor Daniel ElviraU. BasslerDmitri TsybychevR. L. MccarthyJ. JoshiD. EdmundsK. M. ChanAndrew BrandtAngelo De Souza SantosAlexander KupcoI. KatsanosMarvin JohnsonA. L. LyonV. V. TokmeninH. A. NealMaxim PerfilovJohn HobbsRegina DeminaA. V. KozelovJ. T. LinnemannMark Richard James WilliamsZhenyu YeYuri GershteinS. Söldner-remboldK. YipCarsten HenselG. A. García-guerraMarkus WobischN. K. MondalD. BolineJ. P. NegretJ. ZennamoR. Luna-garciaA. DubeyN. ParuaD. VilanovaRandy RuchtiS. CihangirK. J. SmithJason Dhia MansourH. T. DiehlMichael HildrethL. BellantoniFabrice CoudercSuyong ChoiF. MiconiOleg BrandtHarald FoxA. BoehnleinX. B. BuE. Camacho-pérezL. SuterA.s. DyshkantA. K.a. MacielDarren PriceJ. Martínez-ortegaReinhard SchwienhorstBjoern PenningH. T. NguyenJ. F. BartlettRobert KehoeJ. EllisonS. UzunyanS. ChakrabartiP. D. GrannisD. LiLiang LiP. RubinovG. GolovanovS. FuessI. A. VasilyevM. C. CousinouW. M. Van LeeuwenMarco VerzocchiT. KurcaT. KurcaS. CaughronArnulf QuadtA. PatwaLev DudkoAmnon HarelJ. M. HauptmanCecilia Elena GerberG. GintherG. GintherM. CookeS. UvarovElemer NagyMarcia BegalliZdenek HubacekShangfeng YangV. E. BazterraW. GengW. GengGregorio BernardiD. DenisovAnthony RossMarc BesanconJianming QianMeenakshi NarainB. QuinnD. WickeM. P. SandersVladimir GavrilovGordon WattsAlexander GrohsjeanN. KhalatyanHal EvansThomas FerbelM. PrewittLars SonnenscheinC. SchwanenbergerAlice BeanLev UvarovN. OsmanEmilien ChaponJ. ClutterPhillip GutierrezJ. WeichertVolker BuescherGuennadi BorissovD. HedinI. Heredia-de La CruzGregory R SnowV. M. AbazovS. BhatiaP. NeustroevH. E. FiskSteven W. ShawNeeti ParasharS. GrederIain Alexander BertramA. Y. VerkheevK. A. JohnsJ. HoganAran Garcia-bellidoI. RazumovM. ZielinskiJiping ZhuJ. HaysV. N. EvdokimovM. RominskyThibault GuilleminPhilip BaringerA. JayasingheY. A. YatsunenkoCarlos AvilaY. T. TsaiQ. Z. LiY. IlchenkoI. KiselevichJose Andres Garcia-gonzalezA. JusteJ. OstaR. IllingworthI. HowleyElizaveta ShabalinaM. PadillaG. SavageR. JesikV. SimakSabine LammersMitchell WayneH. SchellmanJ. M. KohliStefan GrünendahlL. FengA. V. PopovM. BuehlerB. TuchmingShih-chang LeeJ. WarcholS. J. De JongA. A. ShchukinFrank FiedlerE. KajfaszV. M. PodstavkovM. FortnerA. ChandraPh GrisEmanuela BarberisAshok KumarR. Magaña-villalbaS. W. ChoGianluca PetrilloShabnam JabeenG. C. BlazeyRaymond BrockR. BeuselinckP. JiangR. YamadaJean-francois GrivazR. D. SchambergerL. S. VertogradovJ. OrdunaM. NaimuddinP. JonssonA. PalR. BernhardW. E. CooperThomas HebbekerMary Beth AdamsArnaud DuperrinChristophe RoyonH. D. WahlG. SajotM. M. MeijerT. YasudaM. S. RangelAaron DominguezHorst SeveriniHakjae LeeH. GreenleeRichard B. LiptonKristian HarderM. HohlfeldV. BunichevA. BrossD. CuttsSw. BanerjeeB. S. AcharyaK. HernerK. SoustruznikD. ChakrabortyXiaowen LeiDon LincolnErich VarnesM. VesterinenJ. K. LimG. GrenierG. GrenierA. P. HeinsonM. A. PleierTerry Richard WyattS. W. YounRuchika NayyarP. L.m. Podesta-lermaBrad AbbottPierre PetroffLidija ZivkovicH. HegabV. PariharV. V. SharyAvto KharchilavaT. HoangAlexander KhanovR. Van KootenM. D. CorcoranL. HanFrederic DeliotChristopher George TullyPatrick SlatteryEmily JohnsonP. SalcidoD. A. StoyanovaT. HeadR. K. ShivpuriD. R. ClaesGavin DaviesR. Lopes De SaY. ScheglovJan StarkCecile DeterreNikos VarelasC. L. McgivernBing ZhouMartin GrunewaldMilos LokajicekDarien WoodC. P. BuszelloYuehong XieS. BlessingP. F. DingScott SnyderUlrich HeintzV. TrusovFrank FilthautM. DiesburgRobert Hirosky

subject

PhysicsQuantum chromodynamicsNuclear and High Energy PhysicsParticle physicsPhoton010308 nuclear & particles physicsBar (music)Astrophysics::High Energy Astrophysical PhenomenaTevatron7. Clean energy01 natural sciencesNuclear physicsPair production0103 physical sciencesHigh Energy Physics::ExperimentInvariant massRapidity010306 general physicsParton shower

description

We present measurements of direct photon pair production cross sections using 8.5 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron p (p) over bar collider. The results are presented as differential distributions of the photon pair invariant mass d sigma/dM(gamma gamma), pair transverse momentum d sigma/dp(T)(gamma gamma) azimuthal angle between the photons d sigma/d Delta(phi)(gamma gamma), and polar scattering angle in the Collins-Soper frame d sigma/d vertical bar cos theta*vertical bar. Measurements are performed for isolated photons with transverse momenta p(T)(gamma) > 18 (17) GeV for the leading (next-to-leading) photon in P-T, pseudorapidities vertical bar eta(gamma)vertical bar 0.4. We present comparisons with the predictions from Monte Carlo event generators DIPHOX and RESBOS implementing QCD calculations at next-to-leading order, 2 gamma NNLO at next-to-next-to-leading order, and SHERPA using matrix elements with higher-order real emissions matched to parton shower.

yearjournalcountryeditionlanguage
2013-08-01Physics Letters B
https://doi.org/10.1016/j.physletb.2013.06.036