advanced analysis methods in high energy physics

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1、AdvancedAnalysisMethodsinHighEnergyPhysics*PushpalathaC.BhatFermiNationalAcceleratorLaboratory,P.O.Box500,Batavia,IL60510Abstract.Duringthecomingdecade,highenergyphysicsexperimentsattheFermilabTevatronandaroundtheglobewilluseverysophisticatedequipmenttoreco

2、rdunprecedentedamountsofdatainthehopeofmakingmajordiscoveriesthatmayunravelsomeofNature’sdeepestmysteries.ThediscoveryoftheHiggsbosonandsignalsofnewphysicsmaybearoundthecorner.Theuseofadvancedanalysistechniqueswillbecrucialinachievingthesegoals.Iwilldiscuss

3、someofthenovelmethodsofanalysisthatcouldprovetobeparticularlyvaluableforfindingevidenceofanynewphysics,forimprovingprecisionmeasurementsandforexploringparameterspacesoftheoreticalmodels.“Areasonablemanadaptshimselftotheworld.Anunreasonablemanpersiststoadapt

4、theworldtohimself.So,allprogressdependsontheunreasonableone.”-BernardShaw.INTRODUCTIONdatawerewrittenout.EachnewgenerationofexperimentsismoredemandingthanthepreviousinTheCDFandDØexperimentsarepreparingforatermsofdatahandling;theratesofinteractionsandthenewa

5、ndpossiblyadecade-longrunattheupgradednumberofdetectorchannelstoberead-outoftengrowFermilabTevatron.Anewgenerationofacceleratorsbyordersofmagnitude.Findingthesignalsofnewanddetectorsareonthehorizon.Inthecomingphysicsbecomeaveritablecaseof“findingneedlesinde

6、cade,wehopetodiscovertheHiggsbosonandfindahay-stack”.SonewparadigmsandnewtechnologiesevidenceofphysicsbeyondtheStandardModel(SM)needtobeidentified,developedandadopted.suchasSupersymmetryorTechnicolor,orsomethingcompletelyunexpected.Inordertoachievethegoalso

7、fthehighenergyphysics(HEP)community,IbelieveitiscrucialthatadvancedandoptimaldataINTELLIGENTDETECTORSanalysismethodsbeusedbothon-lineandoff-line[1,2].Today,dataanalysisinHEPexperimentsstartswhenahighenergyeventoccurs.TheelectronicdatafromInourquesttounderst

8、andtheuniverse,wethedetectorsneedtobetransformedintousefulcontinuallyexperiment,analyzeobservations,interpret“physics”informationinreal-time.Onecanenvisionresultsandupdateourknowledge.Inhighenergythatt