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1、January29,200920:12WSPC-ProceedingsTrimSize:9inx6intasi1TASI2008lecturesonColliderSignalsII:missingETsignaturesanddarkmatterconnectionHowardBaer∗HomerL.DodgeDepartmentofPhysicsandAstronomy,UniversityofOklahoma,Norman,OK73019,USA∗E-mail:baer@nhn.ou.eduTheselect
2、uresgiveanoverviewofaspectsofmissingETsignaturesfromnewphysicsattheLHC,alongwiththeirimportantconnectiontodarkmatterphysics.Mostly,Iwillconcentrateonsupersymmetric(SUSY)sourcesofE6T,butwillalsomentionLittleHiggsmodelswithT-parity(LHT)anduniver-salextradimensio
3、ns(UED)modelswithKK-parity.Lecture1coversSUSYbasics,modelbuildingandspectracomputation.Lecture2addressessparticleproductionanddecaymechanismsathadroncollidersandeventgeneration.Lecture3coversSUSYsignaturesatLHC,alongwithLHTandUEDsigna-turesforcomparison.InLect
4、ure4,Iaddressthedarkmatterconnection,andhowdirectandindirectdarkmattersearches,alongwithLHCcollidersearches,mayallowustobothdiscoverandcharacterizedarkmatterinthenextseveralyears.Finally,theinterestingscenarioofYukawa-unifiedSUSYisexamined;thiscaseworksbestifth
5、edarkmatterturnsouttobeamixtureofaxion/axinostates,ratherthanneutralinos.Keywords:Supersymmetry;colliderphysics;darkmatter;missingtransverseenergyarXiv:0901.4732v1[hep-ph]29Jan20091.Introduction:E6TcollidersignaturesandthedarkmatterconnectionIhavebeenassignedt
6、hetopicofdiscussingmissingtransverseenergysig-naturesathadroncolliders,especiallytheCERNLHC,whichshouldbe-ginproducingdatain2009.Everycolliderevent–betheylepton-lepton,lepton-hadronorhadron-hadroninteractions–willcontainsomeamountofmissingenergy(E6)justduetoth
7、efactthatenergymeasurementsarenotperfectlyprecise.HadroniceventswillusuallycontainmoreE6thanleptoniceventssincetheenergyresolutionofhadroniccalorimetersisnotaspreciseasiselectromagneticresolution.Inaddition,colliderdetectorsareimper-fectdevices,oftencontaining
8、un-instrumentedregions,cracks,hotordeadJanuary29,200920:12WSPC-ProceedingsTrimSize:9inx6intasi2calorimetercells,andonlypartialcoverageofthe4πsteradianssurround-ingtheinteractionreg
