p-D碰撞Drell-Yan過程的核效應(yīng).pdf

1、河北師范大學(xué)碩士學(xué)位論文pD碰撞DrellYan過程的核效應(yīng)姓名：魏增江申請學(xué)位級別：碩士專業(yè)：理論物理指導(dǎo)教師：段春貴20080401Abs仃actEMCeffectsreflectthatfreenucleonstructurefunctionsaredifferentfromboundnucleonNucleareffectsofnucleonp咖distributionsfunctionisintroducedthroughth

2、einteractionofhighenergyparticleandnucleusThepartondistributionfunctionsofboundnucleonisobtainedSowecanbetterexplaintotheexperimentalresultsofAAandPAWeCancalculatethedifferentialcrosssectionandfindnewphysicsandnewmatters

3、tateWhenweresearchnuclearenvironmentininnersn佻tIlreofthenucleardistributionfunctiononlybyusingthestructurefunctionofthenucleardatagivenbyleptonnucleideepinelasticscatteringexperiments，itCall’tdeterminethesmallxregionofth

4、eupquarkandthebigXregiondistributionofseaquarkThroughnuclearDrellYanprocessofproton——nucleicollisions，itisanimportantmeansforpeopletostudynuclearquarkgluondistributionThereistheenergylosseffectintheprotonnucleuscollision

5、sofnuclearDrell—YahprocessfortheheavynucleartargetweneeddeductetheinfluenceoftheeffectsasdeterminingthedistributionofseaquarkWhileitcanbeignoredforlightnucleartargetsSo，bymeansofnuclearDrellYanprocessofprotondenteroncoll

6、isions，wecanstudythepartonmomentumdistributionofnucleiInthisthesis，byadoptingthenucleareffectsfunctionofdeuteronquarkseaquarkgivenbyHKNandpartondistributionfunctioninprotonproposedbyCTEQ，wecalculatetheratioso—orTMofDrell

7、YanprocessglOSSsectionbetweenproton—dentcronandproton—protonandcompared謝mtheE866experimentaldataTheresultsofthegroupisagree、析tllE866experimentalresults，apartfromthebigxregion(x02)Theinfluenceofdeuteroneffectofthenuclears

8、tructurefunctioninprotondeuteronandprotonprotonreactionDrellYanprocesstoo如|o攤isverysmallThereforewecanusetheexperimentaldataofDreUYanprocessinprotondeuteroncollisionstesearchthepattondistributionfunctionoftheprotonespeci