6533b826fe1ef96bd1285318

RESEARCH PRODUCT

Update of the search for charginos nearly mass-degenerate with the lightest neutralino

P. AbreuW. AdamT. AdyeP. AdzicI. AjinenkoZ. AlbrechtT. AlderweireldG. AlekseevR. AlemanyT. AllmendingerP. AllportS. AlmehedU. AmaldiN. AmapaneS. AmatoE. AnassontzisP. AnderssonA. AndreazzaS. AndringaP. AntilogusW. ApelY. ArnoudB. AsmanJ. AugustinA. AugustinusP. BaillonA. BallestreroP. BambadeF. BaraoG. BarbielliniR. BarbierD. BardinG. BarkerA. BaroncelliM. BattagliaM. BaubillierK. BecksM. BegalliA. BehrmannP. BeilliereY. BelokopytovN. BenekosA. BenvenutiC. BeratM. BerggrenD. BertrandM. BesanconM. BigiM. BilenkyM. BizouardD. BlochH. BlomM. BonesiniM. BoonekampP. BoothA. BorglandG. BorisovC. BosioO. BotnerE. BoudinovB. BouquetC. BourdariosT. BowcockI. BoykoI. BozovicMarco BozzoM. BrackoP. BranchiniR. BrennerP. BruckmanJ. BrunetL. BuggeT. BuranB. BuschbeckP. BuschmannS. CabreraM. CacciaM. CalviT. CamporesiV. CanaleF. CarenaL. CarrollC. CasoM. GimenezA. CattaiF. CavalloV. ChabaudP. CharpentierP. ChecchiaG. ChelkovR. ChiericiP. ChliapnikovP. ChochulaV. ChorowiczJ. ChudobaK. CieslikP. CollinsR. ContriE. CortinaG. CosmeF. CossuttiH. CrawleyD. CrennellS. CrepeG. CrosettiJ. MaestroS. CzellarM. DavenportW. D. SilvaG. D. RiccaP. DelpierreN. DemariaA. D. AngelisW. D. BoerC. D. ClercqB. D. LottoA. D. MinL. D. PaulaH. DijkstraL. D. CiaccioJ. DolbeauK. DorobaM. DracosJ. DreesM. DrisA. DuperrinJ. DurandG. EigenT. EkelofG. EkspongM. EllertM. ElsingJ. EngelM. SantoG. FanourakisD. FassouliotisJ. FayotM. FeindtA. FerrerE. Ferrer RibasF. FerroS. FichetA. FirestoneU. FlagmeyerH. FoethE. FokitisFlavio FontanelliB. FranekA. FrodesenR. FruhwirthF. Fulda QuenzerJ. FusterA. GalloniD. GambaS. GamblinM. GandelmanC. GarciaC. GasparM. GasparU. GaspariniP. GavilletE. GazisD. GeleT. GeralisL. GerdyukovN. GhodbaneI. GilF. GlegeR. GokieliB. GolobG. Gomez CeballosP. GoncalvesI. CaballeroG. GopalL. GornY. GouzV. GraccoJ. GrahlE. GrazianiP. GrisG. GrosdidierK. GrzelakJ. GuyC. HaagF. HahnS. HahnS. HaiderA. HallgrenK. HamacherJ. HansenF. HarrisF. HaulerV. HedbergS. HeisingJ. HernandezP. HerquetH. HerrT. HessingJ. HeuserE. HigonS. HolmgrenP. HoltS. HoorelbekeM. HouldenJ. HrubecM. HuberK. HuetG. HughesK. HultqvistJ. JacksonR. JacobssonP. JalochaR. JanikC. JarlskogG. JarlskogP. JarryB. Jean MarieD. JeansE. JohanssonP. JonssonC. JoramP. JuillotL. JungermannF. KapustaK. KarafasoulisS. KatsanevasE. KatsoufisP. KeranenG. KernelB. KersevanY. KhokhlovB. KhomenkoN. KhovanskiA. KiiskinenB. KingA. KinvigN. KjaerO. KlappH. KleinP. KluitP. KokkiniasV. KostioukhineC. KourkoumelisO. KouznetsovM. KrammerE. KriznicZ. KrumsteinP. KubinecJ. KurowskaK. KurvinenJ. LamsaD. LaneJ. LaugierR. LauhakangasG. LederF. LedroitV. LefebureL. LeinonenA. LeisosR. LeitnerG. LenzenV. LepeltierT. LesiakM. LethuillierJ. LibbyW. LiebigD. LikoA. LipniackaI. LippiB. LoerstadJ. LokenJ. LopesJ. LopezR. Lopez FernandezD. LoukasP. LutzL. LyonsJ. MacnaughtonJ. MahonA. MaioA. MalekT. MalmgrenS. MaltezosV. MalychevF. MandlJ. MarcoR. MarcoB. MarechalM. MargoniJ. MarinC. MariottiA. MarkouC. Martinez RiveroF. Martinez VidalS. GarciaJ. MasikN. MastroyiannopoulosF. MatorrasC. MatteuzziG. MatthiaeF. MazzucatoM. MazzucatoM. M. CubbinR. M. KayR. M. NultyG. PhersonC. MeroniW. MeyerE. MiglioreL. MirabitoW. MitaroffU. MjoernmarkT. MoaM. MochR. MoellerK. MoenigMaria Roberta MongeD. MoraesX. MoreauP. MorettiniG. MortonU. MuellerK. MuenichM. MuldersC. Mulet MarquisR. MuresanW. MurrayB. MurynG. MyattT. MyklebustF. NaraghiM. NassiakouF. NavarriaS. NavasK. NawrockiP. NegriN. NeufeldR. NicolaidouB. NielsenP. NiezurawskiM. NikolenkoV. NomokonovA. NygrenV. ObraztsovA. OlshevskiA. OnofreR. OravaG. OraziK. OsterbergA. OuraouM. PaganoniS. PaianoR. PainR. PaivaJ. PalaciosH. PalkaT. PapadopoulouL. PapeC. ParkesFabrizio ParodiU. ParzefallA. PasseriO. PassonT. PavelM. PegoraroL. PeraltaM. PernickaA. PerrottaC. PetridouAlessandro PetroliniH. PhillipsF. PierreM. PimentaE. PiottoT. PodobnikM. PolG. PolokP. PoropatV. PozdniakovP. PriviteraN. PukhaevaA. PulliaD. RadojicicS. RagazziH. RahmaniJ. RamesP. RatoffA. ReadP. RebecchiN. RedaelliM. ReglerJ. RehnD. ReidR. ReinhardtP. RentonL. ResvanisF. RichardJ. RidkyG. RinaudoI. Ripp BaudotO. RohneA. RomeroP. RoncheseE. RosenbergP. RosinskyP. RoudeauT. RovelliC. RoyonV. Ruhlmann KleiderA. RuizH. SaarikkoY. SacquinA. SadovskyG. SajotJ. SaltD. SampsonidisMario SanninoP. SchwemlingB. SchweringU. SchwickerathF. ScuriP. SeagerY. SedykhA. SegarN. SeibertR. SekulinR. ShellardM. SiebelL. SimardF. SimonettoA. SisakianG. SmadjaN. SmirnovO. SmirnovaG. SmithA. SokolovA. SopczakR. SosnowskiT. SpassovE. SpiritiSandro SquarciaC. StanescuS. StanicM. StanitzkiK. StevensonA. StocchiJ. StraussR. StrubB. StuguM. SzczekowskiM. SzeptyckaT. TabarelliA. TaffardO. TchikilevF. TegenfeldtF. TerranovaJ. ThomasJ. TimmermansN. TintiL. TkatchevM. TobinS. TodorovaA. TomaradzeB. TomeA. TonazzoL. TortoraP. TortosaG. TranstromerD. TreilleG. TristramM. TrochimczukC. TronconM. TurluerI. TyapkinP. TyapkinS. TzamariasO. UllalandV. UvarovG. ValentiE. VallazzaP. V. DamW. V. DenJ. V. EldikA. V. LysebettenN. V. RemortalI. V. VulpenG. VegniL. VenturaW. VenusF. VerbeureP. VerdierM. VerlatoL. VertogradovV. VerziD. VilanovaL. VitaleE. VlasovA. VodopyanovG. VoulgarisV. VrbaH. WahlenC. WalckA. WashbrookC. WeiserD. WickeJ. WickensG. WilkinsonM. WinterM. WitekG. WolfJ. YiO. YushchenkoA. ZalewskaP. ZalewskiD. ZavrtanikE. ZevgolatakosN. ZiminA. ZintchenkoP. ZollerG. ZucchelliG. ZumerleD. Collaboration

subject

Nuclear and High Energy PhysicsParticle physicsCOLLISIONSField (physics)LOWEST ORDER CALCULATIONSENERGIESMONTE-CARLO SIMULATIONFOS: Physical sciences2-PHOTON PROCESSES01 natural sciencesLightest Supersymmetric ParticlePartícules (Física nuclear)Standard ModelHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)MONTE-CARLO SIMULATION; LOWEST ORDER CALCULATIONS; RADIATIVE-CORRECTIONS; 2-PHOTON PROCESSES; COLLISIONS; ENERGIES; PROGRAMChargino0103 physical sciencesPROGRAM[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]RADIATIVE-CORRECTIONSHiggsino010306 general physicsNuclear ExperimentDELPHIPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyGauginoLEPLARGE ELECTRON POSITRON COLLIDERSfermionNeutralinoPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSFísica nuclearHigh Energy Physics::ExperimentParticle Physics - Experiment

description

The data collected by DELPHI in 1998 at the centre-of-mass energy of 189 GeV have been used to update the search for charginos nearly mass-degenerate with the lightest supersymmetric particle, which is assumed to be the lightest neutralino. Mass differences below \Delta M = 3 GeV/c^2 are considered. No excess of events with respect to the Standard Model expectation has been observed, and exclusions in the plane of \Delta M versus chargino mass are given. The new \Delta M independent lower limit on the mass of the chargino is 62.4 GeV/c^2 in the higgsino scenario (which includes the gaugino mass unification scenario), if all sfermions are heavier than the lightest chargino. In the approximation of large sfermion masses the limit is 59.8 GeV/c^2, independently of the field content.

yearjournalcountryeditionlanguage
2000-01-01
http://hal.in2p3.fr/in2p3-00005638