14388.半單舉深度非彈性散射過(guò)程中的能量損失和核幾何效應(yīng)

1、學(xué)校代碼：10094中圖分類(lèi)號(hào)：0572密級(jí)：UDC：訝4￡鯫藝尤學(xué)博士學(xué)位論文公開(kāi)530Energylossandnucleargeometryeffectinemiinclusivedeepinelastic；catteringsemeePinelaStlCscatterlng半單舉深度非彈性散射過(guò)程中的能量損失和核幾何效應(yīng)研究生姓名：劉娜指導(dǎo)教師：段春貴教授學(xué)科專(zhuān)業(yè)：理論物理研究方向：高能碰撞物理論文開(kāi)題日期：2011年3月10日

2、AbstractIndepthstudyofquarkpropagationandhadronizationprocessesincoldnuclearmatterCanhelpUStounderstandquarkgluonplasmaanditsspacetimeevolutionprocessInthehadronproductionfromsemiinclusiveleptonnucleusdeepinelasticscatte

3、ring，avirtualphotonfromtheincidentleptonisabsorbedbyaquarkwithinanucleus，thecoloredquarkpropagatesoversomedistancethroughthenuclearmedium，theexistenceofadegreeofenergylosscausedbymultiplecollisionandsoftgluonbremsstrahlu

4、ng，evolvessubsequentlyintoanobservedfinalhadronTherefore，thehadronproductionfromsemiinclusiveleptonnucleusdeepinelasticscatteringprovideidealenviormentforstudyingprotonpropagationandhadronizationprocessesincoldnuclearmat

5、terIfquarkhadronizationoccurringoutsidethenucleus，thehadronproductionfromsemiinclusiveleptonnucleusdeepinelasticscatteringisagoodtooltoinvestigatetheenergylosseffectofoutgoingquarkincoldnuclearmatterInthisthesis，bymeanso

6、ftheexpressionsofhadronformationtimefromHERMEScollaboration，withthehadronformationtimegreaterthanthediameterofthetargetnucleusasthestandard，theexperimentaldatawithquarkhadronizationoccurringoutsidethenucleusarepickedoutf

7、romtheexperimentalresultsreportedbyHERMEScollaborationonthehadronmultiplicityratiosforpositivelychargedpionsproductiononneonnucleusanddeuteriumtargetstruckbyleptonBymeansoftheSWquenchingweightsandtheanalyticparameterizat

8、ionsbasedonBDMPSquenchingweights，thecomputationsforhadronmultiplicityratiosinsemi—inclusivedeepinelasticscatteringarepresentedandcomparedwiththeexperimentaldataforthehadronizationoccurringoutsidethenucleusItisfoundthatth

9、ecalculationalresultswiththenucleargeometryeffectinhadronproductionprocessareingoodagreementwiththeexperimentaldataConsideringthenucleargeometryeffect，thetransportparameterfromtheglobalfitwithexperimentaldataisshowntobe西