手征夸克模型的重求和研究與手征對(duì)稱性自發(fā)破缺.pdf

1、中國(guó)科學(xué)技術(shù)大學(xué)博士學(xué)位論文手征夸克模型的重求和研究與手征對(duì)稱性自發(fā)破缺姓名：黃亦斌申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：理論物理指導(dǎo)教師：閆沐霖200312012003年6月中國(guó)科學(xué)技術(shù)大學(xué)博士學(xué)位論文第2頁(yè)AbstractInthispaper，wemainlyworkintheframeworkofchiralconstituentquarkmodelwestudyonshelldecaysoflightvectormesonresonance

2、sP，Kand≯usingresuinmationmethodSuchstudiesarenecessaryforshowingthatchiraIeffectivetheoryworkswellatthisenergyscaleTheeffectiveactionisderivedbypropervertexmethod)whereresun]mationofallordersofmomentumexpansionisaccompli

3、shedAlsostudiedaretheloopeffectsofpseudoscalarmeson，whichplayanimportantroleatthisenergyscaleThenn—mericalresultsagreewellwiththeexperimentaldataAnewmethodtoexplorethechiralsymmetryspontaneouslybreaking(CSSB)isproposedIt

4、isfoundthattheunitarityoftheeffectivemesontheoryresultedfromresummationderivationsdemandsallupper1imittothemomentumofvectormesonThisupper—limit，beingcriticalpointjisjusttheenergyscaleofCSSB，andisfoundtobeflavor—dependent

5、WealsestudytypicaldecayP_””inU(2)LXu(2)Rchiraltheoryofmesonsbyresummationmethodtocomparetheresunmationcalculationando(v4)calculationAcompleteandcompactexpressionfor‰”(p2)(uptoO(p。))isobtained，fromwhichwecaneasilygettheO(