6533b7d6fe1ef96bd1266dfe

RESEARCH PRODUCT

Precision measurement of the ratio of the Λb0 to B¯0 lifetimes

R. AaijB. AdevaM. AdinolfiA. AffolderZ. AjaltouniJ. AlbrechtF. AlessioM. AlexanderS. AliG. AlkhazovP. Alvarez CartelleA.a. AlvesS. AmatoS. AmerioY. AmhisL. AnderliniJ. AndersonR. AndreassenM. AndreottiJ.e. AndrewsR.b. ApplebyO. Aquines GutierrezF. ArchilliA. ArtamonovM. ArtusoE. AslanidesG. AuriemmaM. BaalouchS. BachmannJ.j. BackA. BadalovV. BalaguraW. BaldiniR.j. BarlowC. BarschelS. BarsukW. BarterV. BatozskayaTh. BauerA. BayJ. BeddowF. BedeschiI. BediagaS. BelogurovK. BelousI. BelyaevE. Ben-haimG. BencivenniS. BensonJ. BentonA. BerezhnoyR. BernetM.-o. BettlerM. Van BeuzekomA. BienS. BifaniT. BirdA. BizzetiP.m. BjørnstadT. BlakeF. BlancJ. BlouwS. BluskV. BocciA. BondarN. BondarW. BoniventoS. BorghiA. BorgiaM. BorsatoT.j.v. BowcockE. BowenC. BozziT. BrambachJ. Van Den BrandJ. BressieuxD. BrettM. BritschT. BrittonN.h. BrookH. BrownA. BurscheG. BusettoJ. BuytaertS. CadedduR. CalabreseO. CallotM. CalviM. Calvo GomezA. CamboniP. CampanaD. Campora PerezF. CaponioA. CarboneG. CarboniR. CardinaleA. CardiniH. Carranza-mejiaL. CarsonK. Carvalho AkibaG. CasseL. CassinaL. Castillo GarciaM. CattaneoCh. CauetR. CenciM. CharlesPh. CharpentierS.-f. CheungN. ChiapoliniM. ChrzaszczK. CibaX. Cid VidalG. CiezarekP.e.l. ClarkeM. ClemencicH.v. CliffJ. ClosierC. CocaV. CocoJ. CoganE. CognerasP. CollinsA. Comerma-montellsA. ContuA. CookM. CoombesS. CoquereauG. CortiI. CountsB. CouturierG.a. CowanD.c. CraikM. Cruz TorresS. CunliffeR. CurrieC. D'ambrosioJ. DalsenoP. DavidP.n.y. DavidA. DavisI. De BonisK. De BruynS. De CapuaM. De CianJ.m. De MirandaL. De PaulaW. De SilvaP. De SimoneD. DecampM. DeckenhoffL. Del BuonoN. DéléageD. DerkachO. DeschampsF. DettoriA. Di CantoH. DijkstraS. DonleavyF. DordeiM. DorigoP. DoroszA. Dosil SuárezD. DossettA. DovbnyaF. DupertuisP. DuranteR. DzhelyadinA. DziurdaA. DzyubaS. EasoU. EgedeV. EgorychevS. EidelmanS. EisenhardtU. EitschbergerR. EkelhofL. EklundI. El RifaiCh. ElsasserS. EsenA. FalabellaC. FärberC. FarinelliS. FarryD. FergusonV. Fernandez AlborF. Ferreira RodriguesM. Ferro-luzziS. FilippovM. FioreM. FioriniC. FitzpatrickM. FontanaF. FontanelliR. FortyO. FranciscoM. FrankC. FreiM. FrosiniJ. FuE. FurfaroA. Gallas TorreiraD. GalliS. GambettaM. GandelmanP. GandiniY. GaoJ. GarofoliJ. Garra TicoL. GarridoC. GasparR. GauldL. GavardiE. GersabeckM. GersabeckT. GershonPh. GhezA. GianelleS. Giani'V. GibsonL. GiubegaV.v. GligorovC. GöbelD. GolubkovA. GolutvinA. GomesH. GordonM. Grabalosa GándaraR. Graciani DiazL.a. Granado CardosoE. GraugésG. GrazianiA. GrecuE. GreeningS. GregsonP. GriffithL. GrilloO. GrünbergB. GuiE. GushchinYu. GuzT. GysC. HadjivasiliouG. HaefeliC. HaenT.w. HafkenscheidS.c. HainesS. HallB. HamiltonT. HampsonS. Hansmann-menzemerN. HarnewS.t. HarnewJ. HarrisonT. HartmannJ. HeT. HeadV. HeijneK. HennessyP. HenrardL. HenryJ.a. Hernando MorataE. Van HerwijnenM. HeßA. HicheurD. HillM. HoballahC. HombachW. HulsbergenP. HuntN. HussainD. HutchcroftD. HyndsM. IdzikP. IltenR. JacobssonA. JaegerE. JansP. JatonA. JawaheryF. JingM. JohnD. JohnsonC.r. JonesC. JoramB. JostN. JurikM. KaballoS. KandybeiW. KansoM. KaracsonT.m. KarbachM. KelseyI.r. KenyonT. KetelB. KhanjiC. KhurewathanakulS. KlaverO. KochebinaI. KomarovR.f. KoopmanP. KoppenburgM. KorolevA. KozlinskiyL. KravchukK. KreplinM. KrepsG. KrockerP. KrokovnyF. KruseM. KucharczykV. KudryavtsevK. KurekT. KvaratskheliyaV.n. La ThiD. LacarrereG. LaffertyA. LaiD. LambertR.w. LambertE. LanciottiG. LanfranchiC. LangenbruchB. LanghansT. LathamC. LazzeroniR. Le GacJ. Van LeerdamJ.-p. LeesR. LefèvreA. LeflatJ. LefrançoisS. LeoO. LeroyT. LesiakB. LeveringtonY. LiM. LilesR. LindnerC. LinnF. LionettoB. LiuG. LiuS. LohnI. LongstaffJ.h. LopesN. Lopez-marchP. LowdonH. LuD. LucchesiH. LuoE. LuppiO. LuptonF. MachefertI.v. MachikhiliyanF. MaciucO. MaevS. MaldeG. MancaG. MancinelliM. ManzaliJ. MaratasU. MarconiC. Marin BenitoP. MarinoR. MärkiJ. MarksG. MartellottiA. MartensA. Martín SánchezM. MartinelliD. Martinez SantosF. Martinez VidalD. Martins TostesA. MassafferriR. MatevZ. MatheC. MatteuzziA. MazurovM. MccannJ. MccarthyA. McnabR. McnultyB. McskellyB. MeadowsF. MeierM. MeissnerM. MerkD.a. MilanesM.-n. MinardJ. Molina RodriguezS. MonteilD. MoranM. MorandinP. MorawskiA. MordàM.j. MorelloR. MountainF. MuheimK. MüllerR. MuresanB. MurynB. MusterP. NaikT. NakadaR. NandakumarI. NastevaM. NeedhamN. NeriS. NeubertN. NeufeldA.d. NguyenT.d. NguyenC. Nguyen-mauM. NicolV. NiessR. NietN. NikitinT. NikodemA. NovoselovA. Oblakowska-muchaV. ObraztsovS. OggeroS. OgilvyO. OkhrimenkoR. OldemanG. OnderwaterM. OrlandeaJ.m. Otalora GoicocheaP. OwenA. OyangurenB.k. PalA. PalanoF. PalomboM. PalutanJ. PanmanA. PapanestisM. PappagalloL. PappalardoC. ParkesC.j. ParkinsonG. PassalevaG.d. PatelM. PatelC. PatrignaniC. Pavel-nicorescuA. Pazos AlvarezA. PearceA. PellegrinoM. Pepe AltarelliS. PerazziniE. Perez TrigoP. PerretM. Perrin-terrinL. PescatoreE. PesenG. PessinaK. PetridisA. PetroliniE. Picatoste OlloquiB. PietrzykT. PilařD. PinciA. PistoneS. PlayferM. Plo CasasusF. PolciA. PoluektovE. PolycarpoA. PopovD. PopovB. PopoviciC. PotteratA. PowellJ. PrisciandaroA. PritchardC. ProuveV. PugatchA. Puig NavarroG. PunziW. QianB. RachwalJ.h. RademackerB. RakotomiaramananaM. RamaM.s. RangelI. RaniukN. RauschmayrG. RavenS. ReichertM.m. ReidA.c. Dos ReisS. RicciardiA. RichardsK. RinnertV. Rives MolinaD.a. Roa RomeroP. RobbeD.a. RobertsA.b. RodriguesE. RodriguesP. Rodriguez PerezS. RoiserV. RomanovskyA. Romero VidalM. RotondoJ. RouvinetT. RufF. RuffiniH. RuizP. Ruiz VallsG. SabatinoJ.j. Saborido SilvaN. SagidovaP. SailB. SaittaV. Salustino GuimaraesB. Sanmartin SedesR. SantacesariaC. Santamarina RiosE. SantovettiM. SapunovA. SartiC. SatrianoA. SattaM. SavrieD. SavrinaM. SchillerH. SchindlerM. SchluppM. SchmellingB. SchmidtO. SchneiderA. SchopperM.-h. SchuneR. SchwemmerB. SciasciaA. SciubbaM. SecoA. SemennikovK. SenderowskaI. SeppN. SerraJ. SerranoP. SeyfertM. ShapkinI. ShapovalY. ShcheglovT. ShearsL. ShekhtmanO. ShevchenkoV. ShevchenkoA. ShiresR. Silva CoutinhoG. SimiM. SirendiN. SkidmoreT. SkwarnickiN.a. SmithE. SmithE. SmithJ. SmithM. SmithH. SnoekM.d. SokoloffF.j.p. SolerF. SoomroD. SouzaB. Souza De PaulaB. SpaanA. SparkesF. SpinellaP. SpradlinF. StagniS. StahlO. SteinkampS. StevensonS. StoicaS. StoneB. StoraciS. StrackaM. StraticiucU. StraumannR. StroiliV.k. SubbiahL. SunW. SutcliffeS. SwientekV. SyropoulosM. SzczekowskiP. SzczypkaD. SzilardT. SzumlakS. T'jampensM. TeklishynG. TellariniE. TeodorescuF. TeubertC. ThomasE. ThomasJ. Van TilburgV. TisserandM. TobinS. TolkL. TomassettiD. TonelliS. Topp-joergensenN. TorrE. TournefierS. TourneurM.t. TranM. TreschA. TsaregorodtsevP. TsopelasN. TuningM. Ubeda GarciaA. UklejaA. UstyuzhaninU. UwerV. VagnoniG. ValentiA. VallierR. Vazquez GomezP. Vazquez RegueiroC. Vázquez SierraS. VecchiJ.j. VelthuisM. VeltriG. VenezianoM. VesterinenB. ViaudD. VieiraX. Vilasis-cardonaA. VollhardtD. VolyanskyyD. VoongA. VorobyevV. VorobyevC. VoßH. VossJ.a. De VriesR. WaldiC. WallaceR. WallaceS. WandernothJ. WangD.r. WardN.k. WatsonA.d. WebberD. WebsdaleM. WhiteheadJ. WichtJ. WiechczynskiD. WiednerG. WilkinsonM.p. WilliamsM. WilliamsF.f. WilsonJ. WimberleyJ. WishahiW. WislickiM. WitekG. WormserS.a. WottonS. WrightS. WuK. WyllieY. XieZ. XingZ. YangX. YuanO. YushchenkoM. ZangoliM. ZavertyaevF. ZhangL. ZhangW.c. ZhangY. ZhangA. ZhelezovA. ZhokhovL. ZhongA. Zvyagin

subject

QuarkQuantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderMeson010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyLambda01 natural sciencesNuclear physicsBaryonLattice (order)0103 physical sciencesHigh Energy Physics::Experiment010306 general physics

description

The LHCb measurement of the lifetime ratio of the Lambda(0)(b) baryon to the (B) over bar (0) meson is updated using data corresponding to an integrated luminosity of 3.0 fb(-1) collected using 7 and 8 TeV centre-of-mass energy pp collisions at the LHC. The decay modes used are Lambda(0)(b) -> J/psi pK(-) and (B) over bar (0) -> J/psi pi K-+(-), where the pi K-+(-) mass is consistent with that of the (K) over bar*(0)(892) meson. The lifetime ratio is determined with unprecedented precision to be 0.974 +/- 0.006 +/- 0.004, where the first uncertainty is statistical and the second systematic. This result is in agreement with original theoretical predictions based on the heavy quark expansion. Using the current world average of the (B) over bar (0) lifetime, the Lambda(0)(b) lifetime is found to be 1.479 +/- 0.009 +/- 0.010 ps. (C) 2014 The Authors. Published by Elsevier B.V.

yearjournalcountryeditionlanguage
2014-06-01Physics Letters B
https://doi.org/10.1016/j.physletb.2014.05.021