6533b857fe1ef96bd12b454c

RESEARCH PRODUCT

Search for γγ decays of a Higgs boson in e+e- collisions at √s up to 209 GeV

R. W. ClifftJ.g. LynchLucia SilvestrisA. MoutoussiM. C. LemaireJ. C. BrientAndrea GiammancoG. LütjensP. A. McnamaraP. CoyleS. DhamotharanS. DhamotharanAndrea ValassiGeorg ZobernigM. G. GreenS. DessagneM. DavierJ. HessC. GewenigerQun OuyangD.p.s. FergusonU. SielerE. E. KlugeAndrea VenturiAndrea VenturiAlain FalvardT. R. EdgecockG. EllisJ. NielsenFabrizio PallaP. GirtlerH. G. SanderV. M. GheteG.p. MurtasS. BrandtO.j. HayesR. SettlesChang-zheng YuanA. MisiejukS. WasserbaechHasko StenzelA. Garcia-bellidoD. KuhnPiero Giorgio VerdiniB. MichelMaria SmizanskaJ. A. StrongG. ParriniE. FernandezMaria GironeMaria GironeF. CombleyY. B. PanA. BonissentG. PrangeV. HeppKyle CranmerP. H. HansenE. SimopoulouJ. P. LeesJ. D. HansenLl. GarridoLl. GarridoR. W. L. JonesP. PerezD.p. ClarkeB. Bloch-devauxGiovanna SelvaggiGy. WolfG. GianniniRichard CavanaughRichard CavanaughCorinne GoyKarl JakobsTommaso BoccaliPatrick JanotL. DuflotE. MerlePedro Teixeira-diasJ. BoucrotF. FosterGiuseppe ZitoA. PachecoEttore FocardiJohn RanderG. A. CowanLorenzo FoàEvelina Vassileva Bouhova-thackerB.s. NilssonS. XueL.t. JonesA. PutzerT. ZieglerB. FabbroR. BeuselinckA. BöhrerH. RuizC. BoreanF. RuggieriG. CaponH. DrevermannK. HüttmannRoberto TenchiniRoberto TenchiniA. J. FinchP. PerretH. VideauMarkus FrankClaus GrupenG. LeibenguthR.d. HillG. MerinoL. PassalacquaStéphane JézéquelA. BlondelJohn-bjarne HansenL. F. ThompsonBenjamin TrocméE. GraugesDominique PallinDonato CreanzaU. BlumenscheinJohn T HarveyM H. LehtoJie ZhangAristotelis KyriakisS. BravoH. HeA. EaletAlessandro GiassiF. MachefertB. JostG. MaggiStefan SchaelSalvatore NuzzoH. DietlGunter QuastGunter QuastAlberto MessineoYuehong XieI. De BonisK. BerkelmanGiuseppe RasoD. DecampR. BarateBoris TuchmingF. BadaudS. L. CartwrightG. RudolphDuccio AbbaneoPh. HeusseGiuseppe BagliesiXin WuF. GianottiElizabeth LocciPaul HodgsonJiali LinJ.c. ThompsonG. HughesJ. KennedyW. CameronF. HölldorferNancy MarinelliG. BencivenniBarbara ClerbauxBarbara ClerbauxReisaburo TanakaO. AwunorJ.m. PascoloMaria Pilar CasadoT.c. GreeningT.c. GreeningP. SeagerC. K. BowderyJ. PutzH. WachsmuthS.a. RutherfordAnna ColaleoI. VideauW. MännerP. PayreGavin DaviesRoger FortyD. SchlatterVitaliano CiulliJ. B. De Vivie De RegieA. AntonelliGiuseppe IaselliN. KonstantinidisR. WhiteEric LanconM. ChmeissaniM. SwynghedauwF. KayserJean-francois GrivazS. SchmelingH. HuLaurent SerinSau Lan WuP. NegusB. VallageJ. H. Von Wimmersperg-toellerJunjie WuP. J. DornanA. VayakiO. Van Der AaB. PietrzykA. DavidGiacomo SguazzoniM. De PalmaJ. M. CrespoA. TilquinF. MartinA.-s. MüllerA. SciabàJ. NowellLei ZhangB. RenkPere MatoF. BossiVal O'sheaVitaliano ChiarellaJ. RothbergAlessia TricomiM.r. PearsonChristian ZeitnitzPaul HankeJ.j. WardA. JacholkowskaTing WangC. N. BoothJ. JoussetVincent LemaitreGerardo GanisGerardo GanisG. B. TaylorP. TempestaD. FayolleDavid HutchcroftS.r. ArmstrongM. WunschS. JinA. NgacPaolo AzzurriGünther DissertoriD. FouchezChristophe DelaereTimothy BarklowTimothy BarklowC. CurtilAlan LitkeMario MaggiP. ColasG. SanguinettiM. MartinezA. S. ThompsonP. R. NortonX. HuangPaolo LaurelliO. BuchmüllerO. BuchmüllerA. RanieriJohn H. L. HansenF. CeruttiA. RougéG.a. BlairN. A. RobertsonW. ZhaoR. XuY. S. GaoY. S. GaoJ. J. VeilletFranco LigabueJ. LopezMarco CattaneoC. MarkouF. RanjardG. MannocchiN. De FilippisEmmerich KneringerS. GonzalezK. TittelKonrad KleinknechtMassimo AntonelliF. TeubertJ. KileS. MonteilW. TejessyDjamel Eddine BoumedieneM. Fernandez-bosmanIan R TomalinK. ZachariadouR. BrunelièreH. G. MoserMarumi KadoMarumi KadoL. RolandiArno HeisterFrancesco RagusaDavid PanequeJ. K. SedgbeerT. MedcalfO. CallotG. BoixG. BoixM. N. MinardWerner Wiedenmann

subject

PhysicsNuclear and High Energy PhysicsAlephParticle physicsPhoton010308 nuclear & particles physicsBranching fractionElectron–positron annihilationHigh Energy Physics::PhenomenologyFermion01 natural sciencesStandard ModelNuclear physics0103 physical sciencesHiggs bosonPhysique des particules élémentairesHigh Energy Physics::Experiment010306 general physics

description

A search for events with a photon pair arising from the decay of a Higgs boson produced in association with a fermion pair, is performed in 893 pb-1 of data recorded by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV. No excess of such events is found over the expected background, An upper limit is derived on the product of the e+e- → HZ cross section and the H → γγ branching fraction as a function of the Higgs boson mass. A fermiophobic Higgs boson produced with the Standard Model cross section is excluded at 95% confidence level for all masses below 105.4 GeV/c2. © 2002 Elsevier Science B.V. All rights reserved.

yearjournalcountryeditionlanguage
2002-09-01
10.1016/s0370-2693(02)02242-6http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/206156