中科院理论物理所.ppt

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1、ColliderPhenomenologyofSUSYCosmicConnections杨金民中科院理论物理所2006.9.16于清华&目录1、IntroductiontoSUSY2、Fine-tuning&SUSY3、GUT&SUSY4、CosmicDarkMatter&SUSY5、SUSYatColliders6、Conclusion1、Introduction

2、F

3、BSUSY1.1WhatisandwhySUSY?起源:起源于60年代末;起源于纯数学逻辑物理模型创建于70年代初一直是研究热点，有30000篇文章发表!Why?FineTuningGUTEle

4、ctroweakBaryogenesisAffleck-DineBaryogenesisInflationDarkMatterSUSYSUSY超对称是物理吗？超粒子有多重？LHC上发现？???R-宇称R-宇称1.2SUSYModelsMSSMNMSSMSingletSMSSMmSUGRAmSUGRA不同的破缺机制Split-SUSYFine-tuningGUT暗物质TeV-ScaleSUSYallsparticles

5、os/Higgsinos

6、aybeunaccessibleatLHCLight!NotnecessarilysolightforLHC4.DarkMatter&SUSYMass:weak-scaleInteraction:weak-scaleDarkMatterWIMPWhichoneisLSPdarkmatter?LSP?LSP(DarkMatter)mSUGRASplit-SUSYsfermionsgauginos/higgsinoDarkMatterMaybeheavyMaybeunaccessibleatLHCLight!MostlikelysolightforLHC5、SUSYSe

7、archatCollidersLEP(I,II)TevatronITevatronIILHCclosedon-goingup-comingILCimaginingLEP(I,II)Tevatron(I,II)SUSYtan>2mh,mA,mH>95GeVSelectron>100GeVSmuon>97GeVStau>93GeV100GeVcchistop->blsnustop->cchiTevatronLHCILC沙

8、漠淘金！1粒金子/100亿粒沙子LHCILC在LHC上发现在ILC上精确测量粒子谱LHC:SUSYTypicalSignatureETbbb-jetb-jetETLHCSparticlessfermionsgauginosHiggsinossquarkssleptonsgluinocharginosneutralinosHiggsBosonsh,H(CP-even)HA(CP-odd)WhatSUSYpartilcescanbefoundatLHC?Dependsongooddetectioncapabilitiesforb’sandtau’s只能发现Gold-p

9、latedsignalLEPIIexcludedLHCTeV-scaleSUSYmSUGRALHCLHCDarkMatterConstraintsparticlesfermiongauginohiggsinoMSSMSplitSUSYmanyseveralmaybeno?Higgsh,HA,HallatleasthonlyhSplit-SUSY+1-1ppe+e-+1-1hH,A,Hsfermionsgaugino/HiggsinoHiggsbosonssparticlesSMweak-scaleSUSYSplit-SUSY????