Confinement, diquarks and goldstone`s theorem
Confinement, diquarks and goldstone`s theorem
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发表时间：
1996-09
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通讯作者：
C. Roberts
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作者：
C. Roberts
比较了在连续介质中胶子传播子的确定和在格点模拟中胶子传播子的确定。本文描述了夸克Dyson-Schwinger方程和束缚态Bethe-Salpeter方程的系统截断方法。该程序确保味八重态轴矢量沃德恒等式是满足订单的订单，从而保证戈德斯通定理的保存;并确定了一种机制，同时确保双夸克在QCD中的存在和他们的存在QCD{sup N{sub c}=2}，其中的颜色单重态双夸克是理论的“重子”。
Determinations of the gluon propagator in the continuum and in lattice simulations are compared. A systematic truncation procedure for the quark Dyson-Schwinger and bound state Bethe-Salpeter equations is described. The procedure ensures the flavor-octet axial- vector Ward identity is satisfied order-by-order, thereby guaranteeing the preservation of Goldstone`s theorem; and identifies a mechanism that simultaneously ensures the absence of diquarks in QCD and their presence in QCD{sup N{sub c}=2}, where the color singlet diquark is the ``baryon`` of the theory.