軸子質(zhì)量限歸并及軸子實(shí)驗(yàn)中光子靜質(zhì)量效應(yīng)研究.pdf

1、華中科技大學(xué)碩士學(xué)位論文軸子質(zhì)量限歸并及軸子實(shí)驗(yàn)中光子靜質(zhì)量效應(yīng)研究姓名：李成德申請學(xué)位級(jí)別：碩士專業(yè)：理論物理指導(dǎo)教師：羅俊邵成剛20060514華中科技大學(xué)碩士學(xué)位論文IIIIAbstractAxionisahypotheticalelementaryparticlewhichemergedfromacompellingsolutiontotheStrongCPprobleminQCD.Subsequentlytheaxionwas

2、recognizedtobeagoodColdDarkMattercidate.Althoughdarkmatteraxionshaveonlyfeeblecouplingstomatterradiationextremelysensitivesearchesareunderwayaroundthewld.BesidessolvingthestrongCPprobleminQCDthediscoveryofaxionsmaybevery

3、meaningfulltothequantumfieldtheiesparticlephysicscosmology.Wereviewtheiginmodelsoftheaxionaswellasthestateofexperimentssearchingfitthroughitscouplingtophotonsprotons.wehavededucedtherelationshipbetweenthecouplingsofaxion

4、toprotonstophotonsafterrenmalizationbywkingwithintheframewkofperturbationthey.ThenwegetthemasslimitsofaxionfromthetsionbalanceexperimentswhichdevotedtotesttheWeakEquivalencePrinciple(WEP)theGravitationalInverseSquareLaw(

5、ISL)aftertransfmation.Maxwellclassicalelectromagictheythespecialtheyofrelativity，quantumelectrodynamicsconstitutethefundamentalframesoftheelectromagicinteractionswhichtransfmedbyphotons.Oneofthemajcontributionsofthemisth

6、attheydefinedthespeedofelectromagicwaveinvacuumastheconstantspeedoflightc，whichimpliesahypothesisthatthephotonrestmassmustbezeroexactly.Butwhetherthisrestmassiszeronotisstilloneofthefundamentalproblemsconfrontedbymanyphy

7、sicists.Allexperimentswhichdevotedtotesttherestmassofphotonwereonlyobtainedtheupperconstrainsonituptonow.Anyconclusiveevidenceofafiniterestmassfthephotonwillbringgreatinfluenceondevelopmentofthewholephysics.Sowehaveexple

8、dtheeffectsofnonzerophotonrestmassinthehighprecisionexperimentwhichdevotedtosearchftheaxionsbyusingthelaserbeamtravelingthroughastrongmagicfieldbasedonthemassiveelectromagicfieldthey.Thenwecomparedtheresultswhichimpliedb

9、ythisexperimentwiththelimitsofphotonrestmasspresentedbyusingmodulatedtsionbalanceinourlabatyin2003.wefoundthattheeffectsofnonzerophotonrestmassinthisexperimentisverysmallerthanthemasslimitofaxion，thesensitivityoftheimpli

10、edlimitofthephotonrestmassisverypoerthanours.Soitshowsthatthetsionbalanceisstillaneffectivemeasuretodetectthephotonrestmass.ThiswkwassupptedbytheNationalNaturalScienceFoundationofChina(10121503).Keywds:AxiontheStrongCPpr