학술논문

Measurement of forward top pair production in the dilepton channel in pp collisions at s=13 $$ \sqrt{s}=13 $$ TeV
Document Type
article
Author
The LHCb collaborationR. AaijB. AdevaM. AdinolfiZ. AjaltouniS. AkarJ. AlbrechtF. AlessioM. AlexanderA. Alfonso AlberoS. AliG. AlkhazovP. Alvarez CartelleA. A. AlvesS. AmatoS. AmerioY. AmhisL. AnL. AnderliniG. AndreassiM. AndreottiJ. E. AndrewsR. B. ApplebyF. ArchilliP. d’ArgentJ. Arnau RomeuA. ArtamonovM. ArtusoE. AslanidesM. AtzeniG. AuriemmaI. BabuschkinS. BachmannJ. J. BackA. BadalovC. BaessoS. BakerV. BalaguraW. BaldiniA. BaranovR. J. BarlowC. BarschelS. BarsukW. BarterF. BaryshnikovV. BatozskayaV. BattistaA. BayJ. BeddowF. BedeschiI. BediagaA. BeiterL. J. BelN. BeliyV. BelleeN. BelloliK. BelousI. BelyaevE. Ben-HaimG. BencivenniS. BensonS. BeranekA. BerezhnoyR. BernetD. BerninghoffE. BertholetA. BertolinC. BetancourtF. BettiM. O. BettlerM. van BeuzekomIa. BezshyikoS. BifaniP. BilloirA. BirnkrautA. BizzetiM. BjørnT. BlakeF. BlancS. BluskV. BocciT. BoettcherA. BondarN. BondarI. BordyuzhinS. BorghiM. BorisyakM. BorsatoF. BossuM. BoubdirT. J. V. BowcockE. BowenC. BozziS. BraunJ. BrodzickaD. BrunduE. BuchananC. BurrA. BurscheJ. BuytaertW. ByczynskiS. CadedduH. CaiR. CalabreseR. CalladineM. CalviM. Calvo GomezA. CamboniP. CampanaD. H. Campora PerezL. CapriottiA. CarboneG. CarboniR. CardinaleA. CardiniP. CarnitiL. CarsonK. Carvalho AkibaG. CasseL. CassinaM. CattaneoG. CavalleroR. CenciD. ChamontM. G. ChapmanM. CharlesPh. CharpentierG. ChatzikonstantinidisM. ChefdevilleS. ChenS. F. CheungS.-G. ChiticV. ChobanovaM. ChrzaszczA. ChubykinP. CiambroneX. Cid VidalG. CiezarekP. E. L. ClarkeM. ClemencicH. V. CliffJ. ClosierV. CocoJ. CoganE. CognerasV. CogoniL. CojocariuP. CollinsT. ColomboA. Comerma-MontellsA. ContuG. CoombsS. CoquereauG. CortiM. CorvoC. M. Costa SobralB. CouturierG. A. CowanD. C. CraikA. CrocombeM. Cruz TorresR. CurrieC. D’AmbrosioF. Da Cunha MarinhoC. L. Da SilvaE. Dall’OccoJ. DalsenoA. DavisO. De Aguiar FranciscoK. De BruynS. De CapuaM. De CianJ. M. De MirandaL. De PaulaM. De SerioP. De SimoneC. T. DeanD. DecampL. Del BuonoB. DelaneyH.-P. DembinskiM. DemmerA. DendekD. DerkachO. DeschampsF. DettoriB. DeyA. Di CantoP. Di NezzaH. DijkstraF. DordeiM. DorigoA. Dosil SuárezL. DouglasA. DovbnyaK. DreimanisL. DufourG. DujanyP. DuranteJ. M. DurhamD. DuttaR. DzhelyadinM. DziewieckiA. DziurdaA. DzyubaS. EasoU. EgedeV. EgorychevS. EidelmanS. EisenhardtU. EitschbergerR. EkelhofL. EklundS. ElyA. EneS. EsenH. M. EvansT. EvansA. FalabellaN. FarleyS. FarryD. FazziniL. FedericiG. FernandezP. Fernandez DeclaraA. Fernandez PrietoF. FerrariL. Ferreira LopesF. Ferreira RodriguesM. Ferro-LuzziS. FilippovR. A. FiniM. FioriniM. FirlejC. FitzpatrickT. FiutowskiF. FleuretM. FontanaF. FontanelliR. FortyV. Franco LimaM. FrankC. FreiJ. FuW. FunkE. FurfaroC. FärberE. GabrielA. Gallas TorreiraD. GalliS. GalloriniS. GambettaM. GandelmanP. GandiniY. GaoL. M. Garcia MartinJ. García PardiñasJ. Garra TicoL. GarridoD. GasconC. GasparL. GavardiG. GazzoniD. GerickE. GersabeckM. GersabeckT. GershonPh. GhezS. GianíV. GibsonO. G. GirardL. GiubegaK. GizdovV. V. GligorovD. GolubkovA. GolutvinA. GomesI. V. GorelovC. GottiE. GovorkovaJ. P. GrabowskiR. Graciani DiazL. A. Granado CardosoE. GraugésE. GraveriniG. GrazianiA. GrecuR. GreimP. GriffithL. GrilloL. GruberB. R. Gruberg CazonO. GrünbergE. GushchinYu. GuzT. GysC. GöbelT. HadavizadehC. HadjivasiliouG. HaefeliC. HaenS. C. HainesB. HamiltonX. HanT. H. HancockS. Hansmann-MenzemerN. HarnewS. T. HarnewC. HasseM. HatchJ. HeM. HeckerK. HeinickeA. HeisterK. HennessyP. HenrardL. HenryE. van HerwijnenM. HeßA. HicheurD. HillP. H. HopchevW. HuW. HuangZ. C. HuardW. HulsbergenT. HumairM. HushchynD. HutchcroftP. IbisM. IdzikP. IltenR. JacobssonJ. JalochaE. JansA. JawaheryF. JiangM. JohnD. JohnsonC. R. JonesC. JoramB. JostN. JurikS. KandybeiM. KaracsonJ. M. KariukiS. KarodiaN. KazeevM. KeckeF. KeizerM. KelseyM. KenzieT. KetelE. KhairullinB. KhanjiC. KhurewathanakulK. E. KimT. KirnS. KlaverK. KlimaszewskiT. KlimkovichS. KoliievM. KolpinR. KopecnaP. KoppenburgA. KosmyntsevaS. KotriakhovaM. KozeihaL. KravchukM. KrepsF. KressP. KrokovnyW. KrzemienW. KucewiczM. KucharczykV. KudryavtsevA. K. KuonenT. KvaratskheliyaD. LacarrereG. LaffertyA. LaiG. LanfranchiC. LangenbruchT. LathamC. LazzeroniR. Le GacA. LeflatJ. LefrançoisR. LefèvreF. LemaitreE. Lemos CidP. LenisaO. LeroyT. LesiakB. LeveringtonP.-R. LiT. LiY. LiZ. LiX. LiangT. LikhomanenkoR. LindnerF. LionettoV. LisovskyiX. LiuD. LohA. LoiI. LongstaffJ. H. LopesD. LucchesiM. Lucio MartinezA. LupatoE. LuppiO. LuptonA. LusianiX. LyuF. MachefertF. MaciucV. MackoP. MackowiakS. Maddrell-ManderO. MaevK. MaguireD. MaisuzenkoM. W. MajewskiS. MaldeB. MaleckiA. MalininT. MaltsevG. MancaG. MancinelliD. MarangottoJ. MaratasJ. F. MarchandU. MarconiC. Marin BenitoM. MarinangeliP. MarinoJ. MarksG. MartellottiM. MartinM. MartinelliD. Martinez SantosF. Martinez VidalA. MassafferriR. MatevA. MathadZ. MatheC. MatteuzziA. MauriE. MauriceB. MaurinA. MazurovM. McCannA. McNabR. McNultyJ. V. MeadB. MeadowsC. MeauxF. MeierN. MeinertD. MelnychukM. MerkA. MerliE. MichielinD. A. MilanesE. MillardM.-N. MinardL. MinzoniD. S. MitzelA. MoginiJ. Molina RodriguezT. MombächerI. A. MonroyS. MonteilM. MorandinM. J. MorelloO. MorgunovaJ. MoronA. B. MorrisR. MountainF. MuheimM. MulderD. MüllerJ. MüllerK. MüllerV. MüllerP. NaikT. NakadaR. NandakumarA. NandiI. NastevaM. NeedhamN. NeriS. NeubertN. NeufeldM. NeunerT. D. NguyenC. Nguyen-MauS. NieswandR. NietN. NikitinT. NikodemA. NogayD. P. O’HanlonA. Oblakowska-MuchaV. ObraztsovS. OgilvyR. OldemanC. J. G. OnderwaterA. OssowskaJ. M. Otalora GoicocheaP. OwenA. OyangurenP. R. PaisA. PalanoM. PalutanG. PanshinA. PapanestisM. PappagalloL. L. PappalardoW. ParkerC. ParkesG. PassalevaA. PastoreM. PatelC. PatrignaniA. PearceA. PellegrinoG. PensoM. Pepe AltarelliS. PerazziniD. PereimaP. PerretL. PescatoreK. PetridisA. PetroliniA. PetrovM. PetruzzoE. Picatoste OlloquiB. PietrzykG. PietrzykM. PikiesD. PinciF. PisaniA. PistoneA. PiucciV. PlacintaS. PlayferM. Plo CasasusF. PolciM. Poli LenerA. PoluektovI. PolyakovE. PolycarpoG. J. PomeryS. PonceA. PopovD. PopovS. PoslavskiiC. PotteratE. PriceJ. PrisciandaroC. ProuveV. PugatchA. Puig NavarroH. PullenG. PunziW. QianJ. QinR. QuaglianiB. QuintanaB. RachwalJ. H. RademackerM. RamaM. Ramos PernasM. S. RangelI. RaniukF. RatnikovG. RavenM. Ravonel SalzgeberM. ReboudF. RediS. ReichertA. C. dos ReisC. Remon AlepuzV. RenaudinS. RicciardiS. RichardsM. RihlK. RinnertP. RobbeA. RobertA. B. RodriguesE. RodriguesJ. A. Rodriguez LopezA. RogozhnikovS. RoiserA. RollingsV. RomanovskiyA. Romero VidalM. RotondoM. S. RudolphT. RufP. Ruiz VallsJ. Ruiz VidalJ. J. Saborido SilvaE. SadykhovN. SagidovaB. SaittaV. Salustino GuimaraesC. Sanchez MayordomoB. Sanmartin SedesR. SantacesariaC. Santamarina RiosM. SantimariaE. SantovettiG. SarpisA. SartiC. SatrianoA. SattaD. M. SaundersD. SavrinaS. SchaelM. SchellenbergM. SchillerH. SchindlerM. SchmellingT. SchmelzerB. SchmidtO. SchneiderA. SchopperH. F. SchreinerM. SchubigerM. H. SchuneR. SchwemmerB. SciasciaA. SciubbaA. SemennikovE. S. SepulvedaA. SergiN. SerraJ. SerranoL. SestiniP. SeyfertM. ShapkinY. ShcheglovT. ShearsL. ShekhtmanV. ShevchenkoB. G. SiddiR. Silva CoutinhoL. Silva de OliveiraG. SimiS. SimoneN. SkidmoreT. SkwarnickiI. T. SmithJ. SmithM. Smithl. Soares LavraM. D. SokoloffF. J. P. SolerB. Souza De PaulaB. SpaanP. SpradlinF. StagniM. StahlS. StahlP. StefkoS. StefkovaO. SteinkampS. StemmleO. StenyakinM. StepanovaH. StevensS. StoneB. StoraciS. StrackaM. E. StramagliaM. StraticiucU. StraumannS. StrokovJ. SunL. SunK. SwientekV. SyropoulosT. SzumlakM. SzymanskiS. T’JampensA. TayduganovT. TekampeG. TellariniF. TeubertE. ThomasJ. van TilburgM. J. TilleyV. TisserandM. TobinS. TolkL. TomassettiD. TonelliR. Tourinho Jadallah AoudeE. TournefierM. TraillM. T. TranM. TreschA. TrisovicA. TsaregorodtsevP. TsopelasA. TullyN. TuningA. UklejaA. UsachovA. UstyuzhaninU. UwerC. VaccaA. VagnerV. VagnoniA. ValassiS. ValatG. ValentiR. Vazquez GomezP. Vazquez RegueiroS. VecchiM. van VeghelJ. J. VelthuisM. VeltriG. VenezianoA. VenkateswaranT. A. VerlageM. VernetM. VesterinenJ. V. Viana BarbosaD. VieiraM. Vieites DiazH. ViemannX. Vilasis-CardonaA. VitkovskiyM. VittiV. VolkovA. VollhardtB. VonekiA. VorobyevV. VorobyevC. VoßJ. A. de VriesC. Vázquez SierraR. WaldiJ. WalshJ. WangY. WangD. R. WardH. M. WarkN. K. WatsonD. WebsdaleA. WeidenC. WeisserM. WhiteheadJ. WichtG. WilkinsonM. WilkinsonM. R. J. WilliamsM. WilliamsT. WilliamsF. F. WilsonJ. WimberleyM. WinnJ. WishahiW. WislickiM. WitekG. WormserS. A. WottonK. WyllieY. XieM. XuQ. XuZ. XuZ. YangY. YaoH. YinJ. YuX. YuanO. YushchenkoK. A. ZarebskiM. ZavertyaevL. ZhangY. ZhangA. ZhelezovY. ZhengX. ZhuV. ZhukovJ. B. ZonneveldS. Zucchelli
Source
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-19 (2018)
Subject
Hadron-Hadron scattering (experiments)
Top physics
Heavy quark production
Jet physics
QCD
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Language
English
ISSN
1029-8479
Abstract
Abstract Forward top quark pair production is studied in pp collisions in the μeb final state using a data sample corresponding to an integrated luminosity of 1.93 fb−1 collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The cross-section is measured in a fiducial region where both leptons have a transverse momentum greater than 20 GeV and a pseudorapidity between 2.0 and 4.5. The quadrature sum of the azimuthal separation and the difference in pseudorapidities, denoted ΔR, between the two leptons must be larger than 0.1. The b-jet axis is required to be separated from both leptons by a ΔR of 0.5, and to have a transverse momentum in excess of 20 GeV and a pseudorapidity between 2.2 and 4.2. The cross-section is measured to be σtt¯=126±19stat±16syst±5lumifb $$ {\sigma}_{t\overline{t}}=126\pm 19\left(\mathrm{stat}\right)\pm 16\left(\mathrm{syst}\right)\pm 5\left(\mathrm{lumi}\right)\mathrm{f}\mathrm{b} $$ where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measurement is compatible with the Standard Model prediction.