在53-280MEV下的α-α彈性散射光學(xué)勢的研究.pdf

1、廣西婀傳屯大學(xué)碩j啊F舅罐b掌位論文Y784880在53—280MEV下的口一口彈性散射光學(xué)勢的研究OpticalModelAnalysisoftheElasticScatteringofAlphaParticlesbyHeliumBetween53and120MEV院系：年級(jí)：專業(yè)：研究方向：論文類型：導(dǎo)師：研究生：完成日期：物理與信息工程學(xué)院2002級(jí)理論物理原子核物理基礎(chǔ)研究楊永栩教授張峰2005年4月廣曩n研范大掌碩士習(xí)門電生掌

2、位飩’文AbstraetOpticalModelAnalysisoftheElasticScatteringofAlphaParticlesbyHeliumBetween53andl20MEVGraduatestudent：ZhangFengAdviser：profYangYongxu(CollegeofPhysicsandInformationTechnologyGuangxiNormalUniversity)AbstractFord

3、iscussingreciprocalcommonruleofparticleandnucleusorcalculatingsomenoeasydeterminingdifferentialcrosssections，wemustlookforwhatiscalledatlargeopticalmodelpotential，namely，ina1imitedenergyrangeandtargetrange，itisresultinco

4、ncordancewithexperimentialdataIntermsoftheviewpointoftheleastsquarefitting，Utilizingelasticscatteringdifferentialcrosssectionof口一口Utilizingobtaintheopticalpotentialparametersoftheopticalpotentialforthe“一asystembyfittingt

5、oeachenergyexperimentaldata，atthefirst，theform，wemadeuseofwaswoods—saxonpotential，namely：I—K／[exp((r—rlA3)／A。)]secondly，wealteredthisformtoanotherformofgaussianpotentialasthe口一口interaction：一Vexp[一a4，2]atlastweuseddoubleg

6、aussianpotential，namely：一一exp[一口l4r2]一％exp[一口2r2]fortheimaginarypartoftheinteractionbetweentheincident口particleandthetargetnucleus，wetakethestandardwoods—saxonforml—W／[exp((r一％爿3)／Ao)]wetooksixparameterswoodsaxonpotentia