PDHF方法对偶A核NI的应用

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1、西南交通大学硕士学位论文PDHF方法对偶A核Ni的应用姓名：鲍晓芳申请学位级别：硕士专业：理论物理指导教师：曾家刚20070601西南交通大学硕士研究生学位论文第ll页AbstractTheatomicnucleusoftransitionalareahavecomplexnuclearshapeandenergyspectra,theresearchofthenuclearshapeandenergyspectraisfarlesssufficientthantheresearchofthebigdeformedarea．It'squitedif

2、ficulttoapplythestrictshellmodelortheinteractivebosonmodeltothesenucleus．Therefore，weputforwardawaythatwecanprojectagoodanglemomentumfromthedeformedHFintrinsicstateandablendwayoftwobandstothreekindsofeven·evennucleus．Astheprojectedenergyisonlybecomputedbynumericalvalueintegral

3、，andthesumofintegratedfunctioniscomputedasafunctionof0bycomputerwillConsumealongtime，SOweadopttheGaussapproximationoftheprojectedintegal．Inordertofurthersimplifythecomputeofprojectedenergyspectra，andtomakethecomputedenergyspectraaccording晰ththeexpefimentalenergyspectra．wecanre

4、formthereferencelightly．Asthestrictdeformedconfigurationblendingmethodwillconsumealotoftime，weconsidertheapproximatetheoryoftwoblendingbands．Inthecomputation，weuse40Ca勰nuclearcore，andwetakel五，22p3／2l兀，22死，2雒valuenucleusspace．Takingthemodifiedsurfacedeltainteraction(MSDI)andusi

5、ngasphericalshellmodelbasisset．wecarryoutthedeformedHFcalculationinthe昏space，andobtainthedeformedHFintrinsicstates．whicharetheSlaterdeterminantsconstructingfromtheHFsingle-particlestates．Comparingthecomputedenergyspectrawimtheexperimentalenergyspectra,weobtainalotofinformation

6、．TheapproximateangularmomentumprojecteddeformedHartree—ForkfPDHF)Methodandtheconfigurationblendingmethodiseffectiveandusefulways，itmakeafoundationoftheresearchtOthebiggermassnucleusoftransitionalarea．Atthesametime，Wepointoutthefurtherquestionsconsidered，andbringforwardthefutur

7、eobject．KeyWords：deformedHFmethod，angularmomentumprojection，deformedconfigurationblending，theGaussapproximationoftheprojectedintegral，themodifiedsurfacedeltainteraction(MSDI)，energyspectra西南交通大学硕士研究生学位论文第1页1．1问题的提出第1章绪论核物理学的主要任务之一就是确定核的性质，核的结构以及核与核之间的相互转变规律。从微观角度研究原子核的结构，就是从核子

8、．核子相互作用势出发，导出原子核的一系列在实验上可以观察的性质。胛自洽场理论，是进行微观研究的有力工具。它早在上个世纪三十