Hf原子核的三軸超形變態(tài)的研究.pdf

1、學校代碼—』翌!研究類型基礎研究浙江師范大學碩士學位論文題目：Hf原子核的三軸超形變態(tài)的研究學科專業(yè)：理論物理年級：2004學號：200420199研究生：李曉偉指導教師：于少英中圍分類號答辯時間：!塑!午』三月鳥日摘要ABSTRACTStudyingoftheshapeinthenucleiisoneofthefundamentalproblemsoftheDUElearstructureThetriaxialsuperdeforma

2、tionstateinnucleiisaidealplacetostudynucleiundertheextremeconditions，itisthefrontiersofthehigh—spinstatesnuclearphysics，studyinthisaspectisaacth’i(yfieldbothinexperimentallyandtheoreticanyThetriaxialityofthesuperdeformat

3、ionnucleimeanstheaxialsymmetryoftheSDnucleiwithgoodrigiditycanalsobebrokenOut，SOitarosepeoplesgreatinterestRecentlyx～4tlrthedevelopmentinexperimentandtheoryresearchindepth，nuclearphysicshasmadeagreatprogressinaliaspects，

4、andwiththeheavy。ionphysicsresearchbeingcarryoutpeoplehasobtainedagreatmanydatainhigh—spinstates，discovereddeformednucleisband—backIn1986superdeformationstates＼vasobservedin152DyinDaresbureLab，itsIonghalfaxistoshorthalfax

5、isis2：1FromthefirstdiscoveryoftheTSDstatesin1。Luin1992，morethan30TSDbandshasbeenobservedin1611日16316”65168Lu，Ta，86Zr”Tm，刪7岬4Hf1SaErnucleiIn2001，9connectiontransidonsbetweentwOtriaxialsupcrdeformationbands由∞Luwereobserved

6、inTheNielsBohrInstitutewhichannouncedthefktexperimentalevidenceforthewobblingmodeitisauniqueproofforthetriaxiafityinnuclei，tulnowwobblingmodehasbeenobservedin1∞Lu，1酗Lu，1盯Lu，thisfurtherconfirmedtheexistenceofTSDstatesin出e

7、senucleiInthispaperWestudiedthenewlyfoundedTSDnuclei168H‘17。H￡174Hf”5HfwithTRScalculationwhichbasesoncrankedNilssonpotentialfunctionNamelyweregardedquackupole，hexaecupoleandtriaxialdeformationasvariableparametersandcalcu

8、lateflaetotalRouflfianenergyindifferentshapes，thendetermineshapeparametersfromthelocalninimumenergyTheresultsshowthesenucleiexistTSDstates，thedeformationparametersarealsobegivenComparedwithexperimentsandothermethodsconfi

9、zmedtheveracityoftheprogramandOUXcalculationsByanalyzingthecomponentenergysurfacesindetail，wefoundthesheHcorrectionenergyandrotationenergyplaykeyrolesintheformationofTSDshape，whilethedeformation—drivingeffectofhigh—N，hig