高能物理与核物理
高能物理與覈物理
고능물리여핵물리
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
2006年
9期
833-837
,共5页
Dyson-Schwinger方程%非微扰QCD%红外行为%囚禁%重整化途径
Dyson-Schwinger方程%非微擾QCD%紅外行為%囚禁%重整化途徑
Dyson-Schwinger방정%비미우QCD%홍외행위%수금%중정화도경
Dyson-Schwinger equation%non-perturbative QCD%infrared behavior%confinement%renormalization approach
在胶子和鬼传播子所满足的耦合的Dyson-Schwinger方程中,采用裸胶子-鬼顶点,利用两种重整化方案:解析延拓方法和减除方法,得到了胶子和鬼传播子的红外行为.计算表明两种重整化方案在红外区对胶子和鬼传播子得到一致的结果.
在膠子和鬼傳播子所滿足的耦閤的Dyson-Schwinger方程中,採用裸膠子-鬼頂點,利用兩種重整化方案:解析延拓方法和減除方法,得到瞭膠子和鬼傳播子的紅外行為.計算錶明兩種重整化方案在紅外區對膠子和鬼傳播子得到一緻的結果.
재효자화귀전파자소만족적우합적Dyson-Schwinger방정중,채용라효자-귀정점,이용량충중정화방안:해석연탁방법화감제방법,득도료효자화귀전파자적홍외행위.계산표명량충중정화방안재홍외구대효자화귀전파자득도일치적결과.
Two renormalization approaches: the analytic continuation approach and the subtraction approach,are used to obtain the infrared behavior of gluon and ghost propagators in the coupled gluon and ghost DysonSchwinger equations, where the three-gluon and gluon-ghost vertices are taken to be bare. The results show that the two renormalization approaches give the same results in the infrared analysis of propagators.
