supersymmetry and cosmology - j. feng

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1、SUPERSYMMETRYANDCOSMOLOGYJonathanL.Feng∗DepartmentofPhysicsandAstronomyUniversityofCalifornia,Irvine,CA92697ABSTRACTCosmologynowprovidesunambiguous,quantitativeevidencefornewparticlephysics.Idiscusstheimplicationsofcosmologyforsupersym-metryandviceversa.Topicsi

2、nclude:motivationsforsupersymmetry;su-persymmetrybreaking;darkenergy;freezeoutandWIMPs;neutralinodarkmatter;cosmologicallypreferredregionsofminimalsupergravity;directandindirectdetectionofneutralinos;theDAMAandHEATsig-nals;inflationandreheating;gravitinodarkmatt

3、er;BigBangnucleosyn-thesis;andthecosmicmicrowavebackground.Iconcludewithspecula-tionsabouttheprospectsforamicroscopicdescriptionofthedarkuniverse,stressingthenecessityofdiverseexperimentsonbothsidesoftheparticlephysics/cosmologyinterface.arXiv:hep-ph/0405215v22

4、7Sep2004∗c2004byJonathanL.Feng.Contents1Introduction32SupersymmetryEssentials42.1ANewSpacetimeSymmetry.......................42.2SupersymmetryandtheWeakScale...................52.3TheNeutralSupersymmetricSpectrum..................72.4R-Parity...................

5、...............82.5SupersymmetryBreakingandDarkEnergy...............92.6MinimalSupergravity...........................112.7Summary.................................143NeutralinoCosmology153.1FreezeOutandWIMPs..........................153.2ThermalRelicDensity....

6、......................173.2.1BulkRegion...........................183.2.2FocusPointRegion........................203.2.3AFunnelRegion.........................213.2.4Co-annihilationRegion......................223.3DirectDetection..............................233

7、.4IndirectDetection.............................273.4.1Positrons.............................273.4.2Photons..............................303.4.3Neutrinos.............................313.5Summary.................................334GravitinoCosmology344.1Gravitin

8、oProperties............................354.2ThermalRelicDensity..........................374.3ProductionduringReheating.......................384.4ProductionfromLateDecays..