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Paper detail

Measurement of J/psi production in pp collisions at sqrt(s)=7 TeV

The production of J/psi mesons in proton-proton collisions at sqrt(s)=7 TeV is studied with the LHCb detector at the LHC. The differential cross-section for prompt J/psi production is measured as a function of the J/psi transverse momentum pT and rapidity y in the fiducial region 0<pT<14 GeV/c and 2.0<y<4.5. The differential cross-section and fraction of J/psi from b-hadron decays are also measured in the same pT and y ranges. The analysis is based on a data sample corresponding to an integrated luminosity of 5.2pb-1. The measured cross-sections integrated over the fiducial region are 10.52 +/- 0.04 +/- 1.40 +1.64/-2.20 mub for prompt J/psi production and 1.14 +/- 0.01 +/- 0.16 mub for J/psi from b-hadron decays, where the first uncertainty is statistical and the second systematic. The prompt J/psi production cross-section is obtained assuming no J/psi polarisation and the third error indicates the acceptance uncertainty due to this assumption.

preprint2011arXivOpen access
LHCb collaborationR. AaijB. AdevaM. AdinolfiC. AdroverA. AffolderZ. AjaltouniJ. AlbrechtF. AlessioM. AlexanderP. Alvarez CartelleA. A. Alves JrS. AmatoY. AmhisJ. AmoraalJ. AndersonR. B. ApplebyO. Aquines GutierrezL. ArrabitoM. ArtusoE. AslanidesG. AuriemmaS. BachmannD. S. BaileyV. BalaguraW. BaldiniR. J. BarlowC. BarschelS. BarsukA. BatesC. BauerTh. BauerA. BayI. BediagaK. BelousI. BelyaevE. Ben-HaimM. BenayounG. BencivenniR. BernetM. -O. BettlerM. van BeuzekomS. BifaniA. BizzetiP. M. BjørnstadT. BlakeF. BlancC. BlanksJ. BlouwS. BluskA. BobrovV. BocciA. BondarN. BondarW. BoniventoS. BorghiA. BorgiaE. BosT. J. V. BowcockC. BozziT. BrambachJ. van den BrandJ. BressieuxS. BrisbaneM. BritschT. BrittonN. H. BrookH. BrownA. Büchler-GermannA. BurscheJ. BuytaertS. CadedduJ. M. Caicedo CarvajalO. CallotM. CalviM. Calvo GomezA. CamboniP. CampanaA. CarboneG. CarboniR. CardinaleA. CardiniL. CarsonK. Carvalho AkibaG. CasseM. CattaneoM. CharlesPh. CharpentierN. ChiapoliniX. Cid VidalP. J. ClarkP. E. L. ClarkeM. ClemencicH. V. CliffJ. ClosierC. CocaV. CocoJ. CoganP. CollinsF. ConstantinG. ContiA. ContuM. CoombesG. CortiG. A. CowanR. CurrieB. D&#39;AlmagneC. D&#39;AmbrosioW. Da SilvaP. DavidI. De BonisS. De CapuaM. De CianF. De LorenziJ. M. De MirandaL. De PaulaP. De SimoneD. DecampH. DegaudenziM. DeissenrothL. Del BuonoC. DeplanoO. DeschampsF. DettoriJ. DickensH. DijkstraM. DimaP. Diniz BatistaS. DonleavyD. DossettA. DovbnyaF. DupertuisR. DzhelyadinC. EamesS. EasoU. EgedeV. EgorychevS. EidelmanD. van EijkF. EiseleS. EisenhardtL. EklundD. G. d&#39;EnterriaD. Esperante PereiraL. EstèveE. FanchiniC. FärberG. FardellC. FarinelliS. FarryV. FaveV. Fernandez AlborM. Ferro-LuzziS. FilippovC. FitzpatrickF. FontanelliR. FortyM. FrankC. FreiM. FrosiniJ. L. Fungueirino PazosS. FurcasA. Gallas TorreiraD. GalliM. GandelmanP. GandiniY. GaoJ-C. GarnierJ. GarofoliL. GarridoC. GasparN. GauvinM. GersabeckT. GershonPh. GhezV. GibsonV. V. GligorovC. GöbelD. GolubkovA. GolutvinA. GomesH. GordonM. Grabalosa GándaraR. Graciani DiazL. A. Granado CardosoE. GraugésG. GrazianiA. GrecuS. GregsonB. GuiE. GushchinYu. GuzT. GysG. HaefeliS. C. HainesT. HampsonS. Hansmann-MenzemerR. HarjiN. HarnewP. F. HarrisonJ. HeK. HennessyP. HenrardJ. A. Hernando MorataE. van HerwijnenA. HicheurE. HicksW. HofmannK. HolubyevP. HopchevW. HulsbergenP. HuntT. HuseR. S. HustonD. HutchcroftV. IakovenkoC. Iglesias EscuderoP. IltenJ. ImongR. JacobssonM. Jahjah HusseinE. JansF. JansenP. JatonB. Jean-MarieF. JingM. JohnD. JohnsonC. R. JonesB. JostF. KapustaT. M. KarbachJ. KeaveneyU. KerzelT. KetelA. KeuneB. KhanjiY. M. KimM. KnechtS. KoblitzA. KonoplyannikovP. KoppenburgA. KozlinskiyL. KravchukG. KrockerP. KrokovnyF. KruseK. KruzeleckiM. KucharczykS. KukulakR. KumarT. KvaratskheliyaV. N. La ThiD. LacarrereG. LaffertyA. LaiR. W. LambertG. LanfranchiC. LangenbruchT. LathamR. Le GacJ. van LeerdamJ. -P. LeesR. LefèvreA. LeflatJ. LefrançoisO. LeroyT. LesiakL. LiY. y. LiL. Li GioiM. LiengM. LilesR. LindnerC. LinnB. LiuG. LiuJ. H. LopesE. Lopez AsamarN. Lopez-MarchJ. LuisierB. M&#39;charekF. MachefertI. V. MachikhiliyanF. MaciucO. MaevJ. MagninA. MaierS. MaldeR. M. D. MamunurG. MancaG. MancinelliN. MangiafaveU. MarconiR. MärkiJ. MarksG. MartellottiA. MartensL. MartinA. Martín SánchezD. Martinez SantosA. MassafferriZ. MatheC. MatteuzziM. MatveevV. MatveevE. MauriceB. MaynardA. MazurovG. McGregorR. McNultyC. McLeanM. MeissnerM. MerkJ. MerkelM. MerkinR. MessiS. MiglioranziD. A. MilanesM. -N. MinardS. MonteilD. MoranP. MorawskiJ. V. MorrisR. MountainI. MousF. MuheimK. MüllerR. MuresanF. MurtasB. MurynM. MusyJ. Mylroie-SmithP. NaikT. NakadaR. NandakumarJ. NardulliM. NedosM. NeedhamN. NeufeldM. NicolS. NiesV. NiessN. NikitinA. Oblakowska-MuchaV. ObraztsovS. OggeroO. OkhrimenkoR. OldemanM. OrlandeaA. OstankovB. PalJ. PalaciosM. PalutanJ. PanmanA. PapanestisM. PappagalloC. ParkesC. J. ParkinsonG. PassalevaG. D. PatelM. PatelS. K. PatersonG. N. PatrickC. PatrignaniC. Pavel-NicorescuA. Pazos AlvarezA. PellegrinoG. PensoM. Pepe AltarelliS. PerazziniD. L. PeregoE. Perez TrigoA. Pérez-Calero YzquierdoP. PerretA. PetrellaA. PetroliniB. Pie VallsB. PietrzykD. PinciR. PlackettS. PlayferM. Plo CasasusG. PolokA. PoluektovE. PolycarpoD. PopovB. PopoviciC. PotteratA. PowellT. Du PreeV. PugatchA. Puig NavarroW. QianJ. H. RademackerB. RakotomiaramananaI. RaniukG. RavenS. RedfordW. ReeceA. C. dos ReisS. RicciardiK. RinnertD. A. Roa RomeroP. RobbeE. RodriguesF. RodriguesC. Rodriguez CoboP. Rodriguez PerezG. J. RogersV. RomanovskyJ. RouvinetT. RufH. RuizG. SabatinoJ. J. Saborido SilvaN. SagidovaP. SailB. SaittaC. SalzmannA. Sambade VarelaM. SanninoR. SantacesariaR. SantinelliE. SantovettiM. SapunovA. SartiC. SatrianoA. SattaM. SavrieD. SavrinaP. SchaackM. SchillerS. SchleichM. SchmellingB. SchmidtO. SchneiderA. SchopperM. -H. SchuneR. SchwemmerA. SciubbaM. SecoA. SemennikovK. SenderowskaN. SerraJ. SerranoB. ShaoM. ShapkinI. ShapovalP. ShatalovY. ShcheglovT. ShearsL. ShekhtmanO. ShevchenkoV. ShevchenkoA. ShiresE. SimioniH. P. SkottoweT. SkwarnickiA. C. SmithK. SobczakF. J. P. SolerA. SolominP. SomogyF. SoomroB. Souza De PaulaB. SpaanA. SparkesE. SpiridenkovP. SpradlinF. StagniO. SteinkampO. StenyakinS. StoicaS. StoneB. StoraciU. StraumannN. StylesM. SzczekowskiP. SzczypkaT. SzumlakS. T&#39;JampensV. TalanovE. TeodorescuH. TerrierF. TeubertC. ThomasE. ThomasJ. van TilburgV. TisserandM. TobinS. Topp-JoergensenM. T. TranA. TsaregorodtsevN. TuningA. UklejaP. UrquijoU. UwerV. VagnoniG. ValentiR. Vazquez GomezP. Vazquez RegueiroS. VecchiJ. J. VelthuisM. VeltriK. VervinkB. ViaudI. VideauX. Vilasis-CardonaJ. VisniakovA. VollhardtD. VoongA. VorobyevAn. VorobyevH. VossK. WackerS. WandernothJ. WangD. R. WardA. D. WebberD. WebsdaleM. WhiteheadD. WiednerL. WiggersG. WilkinsonM. P. WilliamsM. WilliamsF. F. WilsonJ. WishahiM. WitekW. WitzelingS. A. WottonK. WyllieY. XieF. XingZ. YangG. Ybeles SmitR. YoungO. YushchenkoM. ZavertyaevL. ZhangW. C. ZhangY. ZhangA. ZhelezovL. ZhongE. Zverev
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Authors

LHCb collaborationR. AaijB. AdevaM. AdinolfiC. AdroverA. AffolderZ. AjaltouniJ. AlbrechtF. AlessioM. AlexanderP. Alvarez CartelleA. A. Alves JrS. AmatoY. AmhisJ. AmoraalJ. AndersonR. B. ApplebyO. Aquines GutierrezL. ArrabitoM. ArtusoE. AslanidesG. AuriemmaS. BachmannD. S. BaileyV. BalaguraW. BaldiniR. J. BarlowC. BarschelS. BarsukA. BatesC. BauerTh. BauerA. BayI. BediagaK. BelousI. BelyaevE. Ben-HaimM. BenayounG. BencivenniR. BernetM. -O. BettlerM. van BeuzekomS. BifaniA. BizzetiP. M. BjørnstadT. BlakeF. BlancC. BlanksJ. BlouwS. BluskA. BobrovV. BocciA. BondarN. BondarW. BoniventoS. BorghiA. BorgiaE. BosT. J. V. BowcockC. BozziT. BrambachJ. van den BrandJ. BressieuxS. BrisbaneM. BritschT. BrittonN. H. BrookH. BrownA. Büchler-GermannA. BurscheJ. BuytaertS. CadedduJ. M. Caicedo CarvajalO. CallotM. CalviM. Calvo GomezA. CamboniP. CampanaA. CarboneG. CarboniR. CardinaleA. CardiniL. CarsonK. Carvalho AkibaG. CasseM. CattaneoM. CharlesPh. CharpentierN. ChiapoliniX. Cid VidalP. J. ClarkP. E. L. ClarkeM. ClemencicH. V. CliffJ. ClosierC. CocaV. CocoJ. CoganP. CollinsF. ConstantinG. ContiA. ContuM. CoombesG. CortiG. A. CowanR. CurrieB. D&#39;AlmagneC. D&#39;AmbrosioW. Da SilvaP. DavidI. De BonisS. De CapuaM. De CianF. De LorenziJ. M. De MirandaL. De PaulaP. De SimoneD. DecampH. DegaudenziM. DeissenrothL. Del BuonoC. DeplanoO. DeschampsF. DettoriJ. DickensH. DijkstraM. DimaP. Diniz BatistaS. DonleavyD. DossettA. DovbnyaF. DupertuisR. DzhelyadinC. EamesS. EasoU. EgedeV. EgorychevS. EidelmanD. van EijkF. EiseleS. EisenhardtL. EklundD. G. d&#39;EnterriaD. Esperante PereiraL. EstèveE. FanchiniC. FärberG. FardellC. FarinelliS. FarryV. FaveV. Fernandez AlborM. Ferro-LuzziS. FilippovC. FitzpatrickF. FontanelliR. FortyM. FrankC. FreiM. FrosiniJ. L. Fungueirino PazosS. FurcasA. Gallas TorreiraD. GalliM. GandelmanP. GandiniY. GaoJ-C. GarnierJ. GarofoliL. GarridoC. GasparN. GauvinM. GersabeckT. GershonPh. GhezV. GibsonV. V. GligorovC. GöbelD. GolubkovA. GolutvinA. GomesH. GordonM. Grabalosa GándaraR. Graciani DiazL. A. Granado CardosoE. GraugésG. GrazianiA. GrecuS. GregsonB. GuiE. GushchinYu. GuzT. GysG. HaefeliS. C. HainesT. HampsonS. Hansmann-MenzemerR. HarjiN. HarnewP. F. HarrisonJ. HeK. HennessyP. HenrardJ. A. Hernando MorataE. van HerwijnenA. HicheurE. HicksW. HofmannK. HolubyevP. HopchevW. HulsbergenP. HuntT. HuseR. S. HustonD. HutchcroftV. IakovenkoC. Iglesias EscuderoP. IltenJ. ImongR. JacobssonM. Jahjah HusseinE. JansF. JansenP. JatonB. Jean-MarieF. JingM. JohnD. JohnsonC. R. JonesB. JostF. KapustaT. M. KarbachJ. KeaveneyU. KerzelT. KetelA. KeuneB. KhanjiY. M. KimM. KnechtS. KoblitzA. KonoplyannikovP. KoppenburgA. KozlinskiyL. KravchukG. KrockerP. KrokovnyF. KruseK. KruzeleckiM. KucharczykS. KukulakR. KumarT. KvaratskheliyaV. N. La ThiD. LacarrereG. LaffertyA. LaiR. W. LambertG. LanfranchiC. LangenbruchT. LathamR. Le GacJ. van LeerdamJ. -P. LeesR. LefèvreA. LeflatJ. LefrançoisO. LeroyT. LesiakL. LiY. y. LiL. Li GioiM. LiengM. LilesR. LindnerC. LinnB. LiuG. LiuJ. H. LopesE. Lopez AsamarN. Lopez-MarchJ. LuisierB. M&#39;charekF. MachefertI. V. MachikhiliyanF. MaciucO. MaevJ. MagninA. MaierS. MaldeR. M. D. MamunurG. MancaG. MancinelliN. MangiafaveU. MarconiR. MärkiJ. MarksG. MartellottiA. MartensL. MartinA. Martín SánchezD. Martinez SantosA. MassafferriZ. MatheC. MatteuzziM. MatveevV. MatveevE. MauriceB. MaynardA. MazurovG. McGregorR. McNultyC. McLeanM. MeissnerM. MerkJ. MerkelM. MerkinR. MessiS. MiglioranziD. A. MilanesM. -N. MinardS. MonteilD. MoranP. MorawskiJ. V. MorrisR. MountainI. MousF. MuheimK. MüllerR. MuresanF. MurtasB. MurynM. MusyJ. Mylroie-SmithP. NaikT. NakadaR. NandakumarJ. NardulliM. NedosM. NeedhamN. NeufeldM. NicolS. NiesV. NiessN. NikitinA. Oblakowska-MuchaV. ObraztsovS. OggeroO. OkhrimenkoR. OldemanM. OrlandeaA. OstankovB. PalJ. PalaciosM. PalutanJ. PanmanA. PapanestisM. PappagalloC. ParkesC. J. ParkinsonG. PassalevaG. D. PatelM. PatelS. K. PatersonG. N. PatrickC. PatrignaniC. Pavel-NicorescuA. Pazos AlvarezA. PellegrinoG. PensoM. Pepe AltarelliS. PerazziniD. L. PeregoE. Perez TrigoA. Pérez-Calero YzquierdoP. PerretA. PetrellaA. PetroliniB. Pie VallsB. PietrzykD. PinciR. PlackettS. PlayferM. Plo CasasusG. PolokA. PoluektovE. PolycarpoD. PopovB. PopoviciC. PotteratA. PowellT. Du PreeV. PugatchA. Puig NavarroW. QianJ. H. RademackerB. RakotomiaramananaI. RaniukG. RavenS. RedfordW. ReeceA. C. dos ReisS. RicciardiK. RinnertD. A. Roa RomeroP. RobbeE. RodriguesF. RodriguesC. Rodriguez CoboP. Rodriguez PerezG. J. RogersV. RomanovskyJ. RouvinetT. RufH. RuizG. SabatinoJ. J. Saborido SilvaN. SagidovaP. SailB. SaittaC. SalzmannA. Sambade VarelaM. SanninoR. SantacesariaR. SantinelliE. SantovettiM. SapunovA. SartiC. SatrianoA. SattaM. SavrieD. SavrinaP. SchaackM. SchillerS. SchleichM. SchmellingB. SchmidtO. SchneiderA. SchopperM. -H. SchuneR. SchwemmerA. SciubbaM. SecoA. SemennikovK. SenderowskaN. SerraJ. SerranoB. ShaoM. ShapkinI. ShapovalP. ShatalovY. ShcheglovT. ShearsL. ShekhtmanO. ShevchenkoV. ShevchenkoA. ShiresE. SimioniH. P. SkottoweT. SkwarnickiA. C. SmithK. SobczakF. J. P. SolerA. SolominP. SomogyF. SoomroB. Souza De PaulaB. SpaanA. SparkesE. SpiridenkovP. SpradlinF. StagniO. SteinkampO. StenyakinS. StoicaS. StoneB. StoraciU. StraumannN. StylesM. SzczekowskiP. SzczypkaT. SzumlakS. T&#39;JampensV. TalanovE. TeodorescuH. TerrierF. TeubertC. ThomasE. ThomasJ. van TilburgV. TisserandM. TobinS. Topp-JoergensenM. T. TranA. TsaregorodtsevN. TuningA. UklejaP. UrquijoU. UwerV. VagnoniG. ValentiR. Vazquez GomezP. Vazquez RegueiroS. VecchiJ. J. VelthuisM. VeltriK. VervinkB. ViaudI. VideauX. Vilasis-CardonaJ. VisniakovA. VollhardtD. VoongA. VorobyevAn. VorobyevH. VossK. WackerS. WandernothJ. WangD. R. WardA. D. WebberD. WebsdaleM. WhiteheadD. WiednerL. WiggersG. WilkinsonM. P. WilliamsM. WilliamsF. F. WilsonJ. WishahiM. WitekW. WitzelingS. A. WottonK. WyllieY. XieF. XingZ. YangG. Ybeles SmitR. YoungO. YushchenkoM. ZavertyaevL. ZhangW. C. ZhangY. ZhangA. ZhelezovL. ZhongE. Zverev

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