6533b854fe1ef96bd12aea8d

RESEARCH PRODUCT

Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

R. AaijB. AdevaM. AdinolfiC. AdroverA. AffolderZ. AjaltouniJ. AlbrechtF. AlessioM. AlexanderS. AliG. AlkhazovP. CartelleA. AlvesS. AmatoS. AmerioY. AmhisL. AnderliniJ. AndersonR. AndreassenJ. AndrewsR. ApplebyO. GutierrezF. ArchilliA. ArtamonovM. ArtusoE. AslanidesG. AuriemmaM. BaalouchS. BachmannJ. BackC. BaessoV. BalaguraW. BaldiniR. BarlowC. BarschelS. BarsukW. BarterT. BauerA. BayJ. BeddowF. BedeschiI. BediagaS. BelogurovK. BelousI. BelyaevE. Ben-haimG. BencivenniS. BensonJ. BentonA. BerezhnoyR. BernetM. BettlerM. Van BeuzekomA. BienS. BifaniT. BirdA. BizzetiP. BjørnstadT. BlakeF. BlancJ. BlouwS. BluskV. BocciA. BondarN. BondarW. BoniventoS. BorghiA. BorgiaT. BowcockE. BowenC. BozziT. BrambachJ. Van Den BrandJ. BressieuxD. BrettM. BritschT. BrittonN. BrookH. BrownI. BurduceaA. BurscheG. BusettoJ. BuytaertS. CadedduO. CallotM. CalviM. GomezA. CamboniP. CampanaD. PerezA. CarboneG. CarboniR. CardinaleA. CardiniH. Carranza-mejiaL. CarsonK. AkibaG. CasseL. GarciaM. CattaneoC. CauetR. CenciM. CharlesP. CharpentierP. ChenN. ChiapoliniM. ChrzaszczK. CibaX. VidalG. CiezarekP. ClarkeM. ClemencicH. CliffJ. ClosierC. CocaV. CocoJ. CoganE. CognerasP. CollinsA. Comerma-montellsA. ContuA. CookM. CoombesS. CoquereauG. CortiB. CouturierG. CowanD. CraikS. CunliffeR. CurrieC. D’ambrosioP. DavidP. DavidA. DavisI. BonisK. BruynS. CapuaM. CianJ. MirandaL. PaulaW. SilvaP. SimoneD. DecampM. DeckenhoffL. BuonoN. DéléageD. DerkachO. DeschampsF. DettoriA. CantoH. DijkstraM. DogaruS. DonleavyF. DordeiA. SuárezD. DossettA. DovbnyaF. DupertuisP. DuranteR. DzhelyadinA. DziurdaA. DzyubaS. EasoU. EgedeV. EgorychevS. EidelmanD. Van EijkS. EisenhardtU. EitschbergerR. EkelhofL. EklundI. RifaiC. ElsasserA. FalabellaC. FärberG. FardellC. FarinelliS. FarryV. FaveD. FergusonV. AlborF. RodriguesM. Ferro-luzziS. FilippovM. FioreC. FitzpatrickM. FontanaF. FontanelliR. FortyO. FranciscoM. FrankC. FreiM. FrosiniS. FurcasE. FurfaroA. TorreiraD. GalliM. GandelmanP. GandiniY. GaoJ. GarofoliP. GarosiJ. TicoL. GarridoC. GasparR. GauldE. GersabeckM. GersabeckT. GershonP. GhezV. GibsonL. GiubegaV. GligorovC. GöbelD. GolubkovA. GolutvinA. GomesH. GordonM. GándaraR. DiazL. CardosoE. GraugésG. GrazianiA. GrecuE. GreeningS. GregsonP. GriffithO. GrünbergB. GuiE. GushchinY. GuzT. GysC. HadjivasiliouG. HaefeliC. HaenS. HainesS. HallB. HamiltonT. HampsonS. Hansmann-menzemerN. HarnewS. HarnewJ. HarrisonT. HartmannJ. HeT. HeadV. HeijneK. HennessyP. HenrardJ. MorataE. Van HerwijnenA. HicheurE. HicksD. HillM. HoballahC. HombachP. HopchevW. HulsbergenP. HuntT. HuseN. HussainD. HutchcroftD. HyndsV. IakovenkoM. IdzikP. IltenR. JacobssonA. JaegerE. JansP. JatonA. JawaheryF. JingM. JohnD. JohnsonC. JonesC. JoramB. JostM. KaballoS. KandybeiW. KansoM. KaracsonT. KarbachI. KenyonT. KetelA. KeuneB. KhanjiO. KochebinaI. KomarovR. KoopmanP. KoppenburgM. KorolevA. KozlinskiyL. KravchukK. KreplinM. KrepsG. KrockerP. KrokovnyF. KruseM. KucharczykV. KudryavtsevT. KvaratskheliyaV. La ThiD. LacarrereG. LaffertyA. LaiD. LambertR. LambertE. LanciottiG. LanfranchiC. LangenbruchT. LathamC. LazzeroniR. Le GacJ. Van LeerdamJ. LeesR. LefèvreA. LeflatJ. LefrançoisS. LeoO. LeroyT. LesiakB. LeveringtonY. LiL. GioiM. LilesR. LindnerC. LinnB. LiuG. LiuS. LohnI. LongstaffJ. LopesN. Lopez-marchH. LuD. LucchesiJ. LuisierH. LuoF. MachefertI. MachikhiliyanF. MaciucO. MaevS. MaldeG. MancaG. MancinelliJ. MaratasU. MarconiP. MarinoR. MärkiJ. MarksG. MartellottiA. MartensA. SánchezM. MartinelliD. SantosD. TostesA. MassafferriR. MatevZ. MatheC. MatteuzziE. MauriceA. MazurovB. McskellyJ. MccarthyA. McnabR. McnultyB. MeadowsF. MeierM. MeissnerM. MerkD. MilanesM. MinardJ. RodriguezS. MonteilD. MoranP. MorawskiA. MordàM. MorelloR. MountainI. MousF. MuheimK. MüllerR. MuresanB. MurynB. MusterP. NaikT. NakadaR. NandakumarI. NastevaM. NeedhamS. NeubertN. NeufeldA. NguyenT. NguyenC. Nguyen-mauM. NicolV. NiessR. NietN. NikitinT. NikodemA. NomerotskiA. NovoselovA. Oblakowska-muchaV. ObraztsovS. OggeroS. OgilvyO. OkhrimenkoR. OldemanM. OrlandeaJ. GoicocheaP. OwenA. OyangurenB. PalA. PalanoM. PalutanJ. PanmanA. PapanestisM. PappagalloC. ParkesC. ParkinsonG. PassalevaG. PatelM. PatelG. PatrickC. PatrignaniC. Pavel-nicorescuA. AlvarezA. PellegrinoG. PensoM. AltarelliS. PerazziniE. TrigoA. YzquierdoP. PerretM. Perrin-terrinL. PescatoreG. PessinaK. PetridisA. PetroliniA. PhanE. OlloquiB. PietrzykT. PilařD. PinciS. PlayferM. CasasusF. PolciG. PolokA. PoluektovE. PolycarpoA. PopovD. PopovB. PopoviciC. PotteratA. PowellJ. PrisciandaroA. PritchardC. ProuveV. PugatchA. NavarroG. PunziW. QianJ. RademackerB. RakotomiaramananaM. RangelI. RaniukN. RauschmayrG. RavenS. RedfordM. ReidA. ReisS. RicciardiA. RichardsK. RinnertV. MolinaD. RomeroP. RobbeD. RobertsE. RodriguesP. PerezS. RoiserV. RomanovskyA. VidalJ. RouvinetT. RufF. RuffiniH. RuizP. VallsG. SabatinoJ. SilvaN. SagidovaP. SailB. SaittaV. GuimaraesC. SalzmannB. SedesM. SanninoR. SantacesariaC. RiosE. SantovettiM. SapunovA. SartiC. SatrianoA. SattaM. SavrieD. SavrinaP. SchaackM. SchillerH. SchindlerM. SchluppM. SchmellingB. SchmidtO. SchneiderA. SchopperM. SchuneR. SchwemmerB. SciasciaA. SciubbaM. SecoA. SemennikovK. SenderowskaI. SeppN. SerraJ. SerranoP. SeyfertM. ShapkinI. ShapovalP. ShatalovY. ShcheglovT. ShearsL. ShekhtmanO. ShevchenkoV. ShevchenkoA. ShiresR. CoutinhoM. SirendiT. SkwarnickiN. SmithE. SmithJ. SmithM. SmithM. SokoloffF. SolerF. SoomroD. SouzaB. PaulaB. SpaanA. SparkesP. SpradlinF. StagniS. StahlO. SteinkampS. StevensonS. StoicaS. StoneB. StoraciM. StraticiucU. StraumannV. SubbiahL. SunS. SwientekV. SyropoulosM. SzczekowskiP. SzczypkaT. SzumlakS. T’jampensM. TeklishynE. TeodorescuF. TeubertC. ThomasE. ThomasJ. Van TilburgV. TisserandM. TobinS. TolkD. TonelliS. Topp-joergensenN. TorrE. TournefierS. TourneurM. TranM. TreschA. TsaregorodtsevP. TsopelasN. TuningM. GarciaA. UklejaD. UrnerA. UstyuzhaninU. UwerV. VagnoniG. ValentiA. VallierM. Van DijkR. GomezP. RegueiroC. SierraS. VecchiJ. VelthuisM. VeltriG. VenezianoM. VesterinenB. ViaudD. VieiraX. Vilasis-cardonaA. VollhardtD. VolyanskyyD. VoongA. VorobyevV. VorobyevC. VoßH. VossR. WaldiC. WallaceR. WallaceS. WandernothJ. WangD. WardN. WatsonA. WebberD. WebsdaleM. WhiteheadJ. WichtJ. WiechczynskiD. WiednerL. WiggersG. WilkinsonM. WilliamsM. WilliamsF. WilsonJ. WimberleyJ. WishahiM. WitekS. WottonS. WrightS. WuK. WyllieY. XieZ. XingZ. YangR. YoungX. YuanO. YushchenkoM. ZangoliM. ZavertyaevF. ZhangL. ZhangW. ZhangY. ZhangA. ZhelezovA. ZhokhovL. ZhongA. Zvyagin

subject

Nuclear and High Energy PhysicsParticle physicsFlavourDecays of leptons; Global symmetries (e.g. baryon number lepton number); 13.35.-r; 11.30.Fs;FOS: Physical sciences01 natural sciencesPartícules (Física nuclear)High Energy Physics - ExperimentSettore FIS/04 - Fisica Nucleare e SubnucleareNuclear physicslepton number)High Energy Physics - Experiment (hep-ex)Violació CP (Física nuclear)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]LHC flavour physics lepton number11.30.FsNeutrinsNeutrinos010306 general physicsParticles (Nuclear physics)Physics13.35.-rDecays of leptonsLarge Hadron Collider010308 nuclear & particles physicsGlobal symmetries (e.g. baryon number lepton number)Leptons (Física nuclear)Global symmetries (e.g.High Energy Physics::Phenomenologybaryon numberDecays of lepton3. Good healthFIS/01 - FISICA SPERIMENTALELeptons (Nuclear physics)Física nuclearHigh Energy Physics::ExperimentBaryon numberNeutrino11.30.FFIS/04 - FISICA NUCLEARE E SUBNUCLEAREParticle Physics - ExperimentLeptonCP violation (Nuclear physics)

description

Searches for the lepton flavour violating decay tau(-) -> mu(-)mu(+)mu(-) and the lepton flavour and baryon number violating decays tau(-) -> (p) over bar mu(+)mu(-) and tau(-) -> p mu(-)mu(-) have been carried out using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb(-1), taken by the LHCb experiment at root s = 7 TeV. No evidence has been found for any signal, and limits have been set at 90% confidence level on the branching fractions: B(tau(-) -> mu(-)mu(+)mu(-) mu(+)mu(-)) p mu(-)mu(-)) (p) over bar mu(+)mu(-) and tau(-) -> p mu(-)mu(-) decay modes represent the first direct experimental limits on these channels.

10.1016/j.physletb.2013.05.063http://dx.doi.org/10.1016/j.physletb.2013.05.063