6533b828fe1ef96bd1288213

RESEARCH PRODUCT

Search for weakly decaying Λn‾ and ΛΛ exotic bound states in central Pb–Pb collisions at sNN=2.76 TeV

Pietro CorteseEvgeny KondratyukL. CunqueiroG. SantagatiJørgen André LienStefano TrogoloHyun-chul KimD. S. HwangA. FelicielloPatrick Simon ReicheltSergey NazarenkoNaghmeh MohammadiC. E. Pérez LaraJeewon SeoJeewon SeoH.r. GulkanyanDario BerzanoM. MorandoBruno EspagnonA. A. VinogradovJeremy John WilkinsonBrigitte CheynisCarsten KleinAnju BhasinR. A. SoltzAgneta OskarssonHannes JungG. A. FeofilovSara ValleroChristoph BlumeAndrzej RybickiVit KuceraCiprian Mihai MituC. SøgaardEsther BartschHideki HamagakiM. ZhalovEwa Gladysz-dziadusJan RakS. K. OhIvan VorobyevM. Martinez PedreiraK. SchwedaFranco MeddiSylvain ChapelandFranck MansoX. G. LuChinorat KobdajSudipan DeSudipan DeE. MudnicCarlos A. SalgadoChristophe FurgetA. MatyjaJanusz OleniaczY. BerdnikovDong Jo KimJean Willy Andre CleymansVolker LindenstruthI. KulakovØYstein Senneset HaalandMaciej Pawel SzymanskiMichal MeresTiziano VirgiliAna VargasDanthasinghe PiyarathnaAnselmo MargottiI. Maldonado CervantesElena BrunaYu. V. KharlovMarie GermainJ. PorterHao WangS. LiS. LiRamona LeaAlessandra LattucaP. CerelloBoris BatyunyaAlessandro GrelliVolodymyr ChelnokovRinaldo RuiH. Pereira Da CostaM. Fusco GirardL. VickovicE. Calvo VillarM. E. ConnorsJ. Mercado PérezP. La RoccaAlberto CalivaStefan KirschA. MaireAli OkatanChristoph MayerZ. YinS. YasnopolskiyU. FrankenfeldAnton JuskoFederico AntinoriSergey EvdokimovJason KaminF. ScarlassaraKlaus Johannes ReygersSergey NikulinTrine Spedstad TveterMikolaj KrzewickiM. BotjeRaffaele GrossoPaolo BartaliniAdela KravcakovaS. P. SorensenDezso VargaAndrew John LoweAstrid MorrealeD. De GruttolaGerardus NoorenJan MusinskyThorsten Sven KolleggerS. SadovskyDomenico ColellaBenjamin Andreas HessIvan KralikMiroslav PiknaMario SittaR. Cruz AlbinoSiegfried Valentin FoertschS. K. BasuPaolo GiubellinoOmbretta PinazzaHiroki YokoyamaIvan KiselJiri KralSandro BjelogrlicM. SanoGiacomo VolpeGiacomo VolpeAlice Elisabeth OhlsonS. BöttgerY. WangP. PillotAlexander VodopyanovMartin Andreas VolklVladimir SamsonovM. ZyzakD. FabrisYonghong ZhangD. Domenicis GimenezJ. PlutaMihai PetroviciSilvia ArcelliP. H. S. Y. JayarathnaTome AnticicMarta VerweijL. ManceauManuel ColocciDebasish DasM. BorriSergey FilchaginMarco BregantChristine NattrassNaoto TanakaBuddhadeb BhattacharjeeEvgeny RyabinkinIosif LegrandPiotr Jan GasikLaura FabbiettiVikas SinghalD. L. D. KeijdenerAra GrigoryanE. López TorresA. KolojvariPeter ChochulaShuaib Ahmad KhanChristophe Pierre SuireJoel Anthony MazerG. PudduA. B. KurepinR. BelmontD. EliaAlexandr TumkinBernd Stefan WindelbandNatasha SharmaNatasha SharmaKamal Hussain KhanMikhail IppolitovJ. De CuvelandBoris WagnerChiara BianchinChiara BianchinTyler Allen BrowningVladimir BelyaevDeepa ThomasDeepa ThomasVarlen GrabskiRanbir SinghRanbir SinghEleazar CuautlePeter KalinakValery PuninPaolo CameriniSergey VoloshinJ. AnielskiJ. G. ContrerasJ. G. ContrerasOleg KaravichevAntonino ZichichiP. RosnetS. De PasqualeL. Montaño ZetinaI. MartashviliM. Spyropoulou-stassinakiMarcelo Gameiro MunhozJussi Samuli ViinikainenDmitry FinogeevShinichi HayashiKen OyamaS.a. ZaporozhetsAndrey ReshetinAdriana TelescaValeria MucciforaA. G. BogdanovMichelangelo AgnelloSaehanseul OhMohammad Ahmad SalehAlexander SzaboFilip KrizekChristian Holm ChristensenNéstor ArmestoNatalia ZhigarevaAndrey ZarochentsevKrzysztof Marek SielewiczTatsuya ChujoE. MontesF. PrinoB. PolichtchoukSubhash SinghaSubhash SinghaEmilia LeograndeSukalyan ChattopadhyayMarcello LunardonBranislav SitarMarkus Konrad KohlerD. MiśkowiecA. VyushinA. Szanto De ToledoCristina BeddaLucile RonflettePeter Zahariev HristovLaure Marie MassacrierMalgorzata Anna JanikMuhammad Umair NaruAlexei KhanzadeevAstrid VauthierVladimir KaplinSang Un AhnValentina ZaccoloL. Calero DiazLuciano MusaY. L. YamaguchiTimo Eero HildenBoris TeyssierBogdan Theodor RascanuAlexander MamonovSidharth Kumar PrasadRene BellwiedXing Long LiJaime NormanArild VelureMuhammad AjazS. LeeKjetil UllalandN. De MarcoE. Belmont-morenoB. Von HallerAmalia PopIonut Christian ArseneDavid Dobrigkeit ChinellatoY. VinogradovAlla MaevskayaM. MaseraRachid GuernaneFabian NgT. PawlakFrancesco RiggiHans Rudolf SchmidtAnnika PassfeldA. NedosekinSatoshi YanoJ.a. MaresVytautas VislaviciusM. I. MartínezOksana ShaduraMarek KowalskiMarek KowalskiL. Valencia PalomoChitrasen JenaImrich SzarkaJ. ZhuJ. ZhuGrazia LuparelloNicole BastidParaskevi GanotiAntonio RossiPanagiota FokaMesut ArslandokC. CavicchioliKgotlaesele SenosiMichal SumberaA. A. P. SuaideMichal KrelinaA. B. KurepinElisa LaudiM. BasileF. RettigM. SpacekAndrei Ionut HerghelegiuHeiko EngelD. R. GangadharanD. SilvermyrD. SilvermyrG. De CataldoG. S. PappalardoVladimir IzucheevWladyslaw Henryk TrzaskaMarc WeberMarc WeberMadalina-gabriela TarzilaA. C. Oliveira Da SilvaNicola BianchiDaniel BerenyiFriederike BockFriederike BockM. A. LisaGyula BencediJacek Tomasz OtwinowskiH. BøggildM. R. CosentinoM. HeideAnkhi RoyF. Baltasar Dos Santos PedrosaM. FaselE. StenlundM. Van LeeuwenMarcel Araujo Silva FigueredoO. Villalobos BaillieChristian LippmannJ. W. Van HoorneR. A. RicciV. P. KondratievWerner RieglerT. BreitnerBiswarup PaulCynthia Marie HadjidakisBarbara GuerzoniM. VeldhoenAlessandra FantoniA. Batista CamejoLatchezar BetevJ. J. GaardhøjeAngelo RivettiAngela BadalaSatyajit JenaCristina TerrevoliHongbo ZhuHongbo ZhuC. PajaresPaolo MartinengoMadan M. AggarwalBongsoo KimT.h. KimMaitreyee MukherjeeAndrey VasilievK. S. SeederWanchaloem PoonsawatY. F. RyabovS. SchuchmannRudiger HaakeA. De FalcoKrzysztof RedlichHartmut HillemannsA. Fernández TéllezMartin PoghosyanSami Sakari RasanenS. K. PalAshutosh PandeyJubin MitraNatalia KondratyevaE. BottaAndrei GheataE. NappiMin Jung KweonM. WildeE. FragiacomoDirk HutterM. Rodríguez CahuantziM. Rodríguez CahuantziR. RussoIan Gardner BeardenPeter ChristiansenTorsten DahmsJeremi NiedzielaYou ZhouD. PantEnrico ScomparinPaolo PaganoAntoine Xavier LardeuxAlexey KuryakinP. Vande VyvreAnthony Robert TimminsAdam Ryszard KisielFilimon RoukoutakisVladimir IvanovClaudiu Cornel SchiauaPooja PareekAnand Kumar DubeyHans Martin LjunggrenY. KucheriaevH. J. C. ZanoliJ. LehnertLukasz Kamil GraczykowskiEvgeny KryshenV. LentiAlexis Jean-michel MasI. Cortés MaldonadoJ. P. RevolA. ZaborowskaJ. D. Tapia TakakiTim SchusterChaosong GaoSaikat BiswasDmitry Mal'kevichTsunehiro KobayashiAlexander AkindinovV. GrigorievY. Corrales MoralesKohei TerasakiSonia RajputV. PetráčekRuben ShahoyanJanka VrlakovaJai Samuel Nielsen SalzwedelJ. S. RealJanet Elizabeth SegerAndrea FrancesconM. C. S. WilliamsFrancesco NoferiniAndry Malala RakotozafindrabeTuva Ora Herenui RichertMarkus Bernhard ZimmermannMarkus Bernhard ZimmermannSandra MorettoAndrea DanuGuillaume BatigneHenner BueschingErik BrückenJ. L. CharvetWisla CarenaB. GrinyovUlrich FuchsCorrado GargiuloMikhail MalaevXiangrong ZhuMateusz Andrzej PloskonM. BallD. PeresunkoKirill VoloshinDavid H. EvansFilippo CostaToralf Bernhard SkaaliTsubasa OkuboSonia ParmarM. VajzerSupriya DasArtur FursVladislav MankoM. GagliardiBogdan VulpescuV. R. LogginsJan PospíšilA. Karasu UysalPanagiotis ChristakoglouRaimond SnellingsS. K. GhoshJihye SongE. DénesG. L. UsaiM. SteinpreisPetr ZavadaHui ZhangHui ZhangAndrea AliciMichael Andreas WinnTomas Wilhelm SnellmanOliver BuschDai-mei ZhouVladimir PeskovMichael Linus KnichelMichael Henry OliverMeidana HuangCostin GrigorasArturo TauroG. Koyithatta MeethaleveeduPhilipp Johannes LuettigVolodymyr YurchenkoJihyun BhomAntonija UtrobicicA. M. GagoMaria VasileiouS. EsumiM. IrfanIgor PshenichnovDeepika RatheeD. BudnikovR. P. ScharenbergChristina MarkertPaul Christoph BätzingMonika KofaragoDonald M. McdonaldJinjin PanRenu BalaC. Alves Garcia PradoSona PochybovaJens WiechulaG. Martínez GarcíaHerve BorelJ. H. KangAlexander BorissovX. CaiSalvatore AiolaV. PaticchioVladimir KovalenkoBasanta Kumar NandiSvein LindalRishat SultanovPing YangM. A. TangaroI. K. YooAnte BilandzicM. MarchisoneJ. L. KlayA. R. ReolonP. CrochetY. J. KwonYves Roland SchutzYves Roland SchutzOlja DordicRoberto PreghenellaS. U. ChungDavid Michael RohrAlex HansenAlexander Philipp KalweitB. K. SrivastavaC. G. YaldoA. K. BhatiP. González-zamoraT. AronssonMarek ChojnackiDiego StoccoAlexandre ShabetaiKristin Fanebust HetlandDaniel Michael MuhlheimLee Stuart BarnbyPiero GiubilatoJan FigielI. IlkivSvetlana KushpilT. P. SinhaHanna Paulina ZbroszczykR. RomitaRaymond James EhlersPremomoy GhoshS. KoxG. HamarBruno AlessandroC. LaraLeonid VinogradovGabor KissD. W. KimD. W. KimG. StefanekVladimir NikulinKonstantin MikhaylovJ. BartkeE. SerradillaXavier Bernard LopezJaroslav BielcikJovan MilosevicElena RogochayaToru SugitateA. Rodriguez MansoMaria HaiducMichele FlorisBoris HippolyteZ. Conesa Del ValleNikolai SmirnovH. CainesSudhir RaniwalaRaphael Noel TieulentTatiana KaravichevaF. BossúPetra RiedlerCristian AndreiMichal BrozYasuo MiakeVenelin AnguelovJohanna StachelSabyasachi SiddhantaM. KimA. Di MauroIjaz AhmedFabio Filippo ColamariaM. EstienneAlexander KlugeSubikash ChoudhuryAlberto ColluM. VenaruzzoD. EschweilerRoy Crawford LemmonIwona Anna SputowskaNur HussainPalash KhanJesse Thomas BuxtonH. Bello MartinezM. BachAnders Garritt KnospeP. I. LoenneM. GallioAnton AndronicJacobus OnderwaaterRedmer Alexander BertensG. V. MargagliottiMaximiliano PuccioPeter Braun-munzingerSanjeev Singh SambyalA. J. Rubio Montero10Hans Peter BeckNicole Alice MartinAndrea FestantiSedat AltinpinarI. León MonzónZ. ButheleziStefan Thomas HeckelJozef FerenceiDavide CaffarriA. Ortiz VelasquezAlessandro FerrettiAlberto BaldisseriH. J. JangN. PoljakFiorella Maria Celeste FiondaZubayer AhammedT. K. NayakL. V. MalininaCvetan Valeriev CheshkovRadiy IlkaevR. D. MajkaC. CicaloF. CarenaJana BielcikovaC. Ceballos SanchezStefano BagnascoJohannes Hendrik StillerM. V. IvanovIouri BelikovThomas DietelG. ViestiAlberto MasoniD. Di BariHans MullerJohan AlmeRainer Arno Ernst RenfordtAndrew Michael KuberaLuciano RamelloAlina Gabriela GrigorasLivio BianchiBedangadas MohantyBedangadas MohantyBaldo SahlmullerRoman LietavaTaku GunjiSibaji RahaA. De CaroF. SoramelF. ErhardtPetr NomokonovMartin SchulcRashmi RaniwalaE. A. R. CasulaNirbhay Kumar BeheraNirbhay Kumar BeheraAttiq Ur RehmanBjarte KilengJ. Van Der MaarelThomas PeitzmannP. Di NezzaTomoya TsujiAlexandru Florin DobrinY. MartynovKi-seok ChoiMotoi InabaJitendra KumarDavide Francesco LodatoM. G. FleckEvgeny KarpechevFederico CindoloL. ŠáNdorClaude Andre PruneauArseniy ShabanovRalf KeidelDmitry BlauC. RoyAlice ZimmermannAnton AlkinSohail Musa MahmoodG. Aglieri RinellaBikash SinhaM. ValaRoberto BarberaM. KeilN. GrionMyunggeun SongS. Vergara LimónPeter LevaiJ. S. KimRama Chandra BaralT. DobrowolskiJorn Henning PutschkeMartijn ReicherLucia LeardiniJ. Castillo CastellanosE. G. FerreiroAdrian SevcencoMihai NiculescuY. SibiriakIlya SelyuzhenkovA. J. CastroSergey GorbunovMichael WangMichael WangM. CherneyGideon Francois SteynM. Mohisin KhanR. T. Jimenez BustamanteGergely Gabor BarnafoldiS. L. La PointeC. GarabatosE. SpiritiJurgen SchukraftChiara ZampolliPeter Graham JonesMatti Mikael MieskolainenRosi ReedThomas Michael CormierLokesh KumarLokesh KumarChristian Claude KuhnElena RoccoJ. Martin BlancoJ.-y. GrossiordH. AppelshäuserKetil RøedSatyabrata KarVictor TrubnikovAna Maria MarinSmbat GrigoryanStefano PianoI. BerceanuBorge Svane NielsenMarco LeoncinoNikita AgrawalJacopo MarguttiSergey NikolaevJulien FaivreAnastasia Maria BarbanoEugenio ScapparoneRainer Martin SchickerPascal DillensegerLuke David HanrattyLinus FeldkampAndres SandovalXiaowen RenRune LangøyRoberta ArnaldiS. MahajanArtem ShangaraevVardanush PapikyanR. Alfaro MolinaAndrzej DeloffR. ScottMarielle ChartierGyulnara EyyubovaC. PettaDagmar AdamováJ. W. HarrisA. RachevskiSilvia MasciocchiD. FeleaJ. BookKenta ShigakiA. Tarantola PeloniAlexander DeistingRenaud VernetC. Klein-bösingMaciej SlupeckiA. S. NyaninF. BelliniPaulus Gerardus KuijerKishora NayakKilian Eberhard SchwarzJames Declan MulliganAndre AugustinusT. J. HumanicK. ŠAfaříkSean MurrayJan WagnerL. M. MinerviniMarian KrivdaMarian KrivdaGrzegorz Andrzej WilkMatthias RichterG. Herrera CorralX. Sanchez CastroGilda ScioliBarbara Ewa ErazmusBarbara Ewa ErazmusLawrence PinskyJochen KleinSergey KiselevAndreas MorschShingo SakaiAndrea DublaUwe WesterhoffStefania BufalinoR. VarmaRicha GuptaI. E. YushmanovGiuseppe SimonettiRalf Peter AverbeckC. Lagana FernandesTomas VanatGuy PaicN. ZaviyalovA. Gomez RamirezAditya Nath MishraRoberto DiviaDimitry AleksandrovS. Porteboeuf-houssaisCristiane JahnkeBeomsu ChangSarita SahooYvonne Chiara PachmayerC. OppedisanoCatalin-lucian RisteaD. VranicVitaly LoginovMohd Danish AzmiYongwook BaekLidia Maria GorlichKenneth Francis ReadJan CepilaPeter MalzacherPodist KurashviliY. P. ViyogiL. NellenJogender SainiChristian SchmidtHåvard HelstrupFedor GuberConstantinos LoizidesAntonio UrasElisa MeninnoStefania BeoleM. KretzChengxin ZhaoTeodor SiemiarczukG. SimatovicT. J. M. SymonsIgor LakomovIgor LakomovBenjamin DonigusHelmut Oskar OeschlerY. SekiguchiInayat Rasool BhatP. L. M. Podesta-lermaG. Tejeda MuñozIonel StanAjay Kumar DashLevente MolnarIndranil DasIndranil DasJaroslav AdamA. SzczepankiewiczMarton VargyasFederico RonchettiAndre MischkeA. JacholkowskiY. PestovIlaria AimoPradip Kumar SahuRosario NaniaFelix ReidtFelix ReidtV. Chibante BarrosoRaghunath SahooM. BombaraValerie Ramillien BarretE. Pereira De Oliveira FilhoGraham Richard LeeEdmundo Javier Garcia-solisBastian BathenHenrik QvigstadAnnalisa MastroserioJan Fiete Grosse-oetringhausM. NicassioG. D'erasmoIgor AltsybeevM. A. Diaz CorcheroC. IonitaMohammad TariqAustin Vincent HartonSeyong KimLaszlo OlahUdo Wolfgang KebschullV. PetrovPascal DupieuxAndrea DaineseSergey FokinJ. ThäderTorsten AltThanushan KugathasanMais Kazim Oglu SuleymanovØYstein DjuvslandLaurent DucrouxPragati SahooSk Noor AlamMahmut OzdemirCatherine Micaela SilvestreE. M. FioreSteffen Georg WeberAlexandru BercuciD. WatanabeMihaela GheataRaphaelle Marie BailhacheErmanno VercellinI. S. ZguraM. A. MazzoniArtem KonevskikhTahir HussainDebojit SarkarPeter GlasselAli ZamanR. N. SingarajuFrancesco BarileMarco MarquardHeidrun E. K. HartmannHt YangJoakim NystrandAlberica ToiaMagnus MagerXiang ZhangGennady ZinovjevSadhana DashDieter RøhrichK. ShtejerV. RazaziSven GotovacZabulon VilakaziArturo Alejandro Menchaca-rochaW. J. ParkLeonardo MilanoL. AphecetchePrabhat Ranjan PujahariPeter StrmenVladimir VecherninPietro AntonioliKristjan Herlache GulbrandsenLuisa CifarelliCharalampos KouzinopoulosJohannes Peter WesselsAnik GuptaD. AlexandreSanjib MuhuriP. RoyTheo Alexander BrokerZixuan SongF. BlancoDespina HatzifotiadouZhuo ZhouM. PlaninicG. Conesa BalbastrePeter Martin JacobsJon Christopher WikneA. SharmaGiacomo BrunoPredrag BuncicLaszlo BoldizsarJ. TakahashiPaola GianottiAnnelies Marianne VeenVito ManzariViktor RiabovRosario Turrisi

subject

PhysicsNuclear and High Energy PhysicsLarge Hadron Collider010308 nuclear & particles physicsBranching fractionNuclear TheoryBinding energyLambda01 natural sciencesParticle identificationNuclear physics0103 physical sciencesBound stateHigh Energy Physics::ExperimentInvariant massNuclear Experiment010306 general physicsHypertriton

description

We present results of a search for two hypothetical strange dibaryon states, i.e. the H-dibaryon and the possible (Lambda n) over bar bound state. The search is performed with the ALICE detector in central (0-10%) Pb-Pb collisions at root S-NN = 2.76 TeV, by invariant mass analysis in the decay modes (Lambda n) over bar (d) over bar pi(+) and H-dibaryon -> Lambda p pi(-). No evidence for these bound states is observed. Upper limits are determined at 99% confidence level for a wide range of lifetimes and for the full range of branching ratios. The results are compared to thermal, coalescence and hybrid UrQMD model expectations, which describe correctly the production of other loosely bound states, like the deuteron and the hypertriton. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.

yearjournalcountryeditionlanguage
2016-01-01Physics Letters B
https://doi.org/10.1016/j.physletb.2015.11.048