Does There Exist Only One Solution of the Dyson-Schwinger Equation for the Quark Propagator in the Case of Non-Zero Current Quark Mass

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2005,（12）
• 页码范围: 3036-3039
• 页数: 4页
• 语种: 英文

摘要

It is shown on general ground that there exist two qualitatively distinct solutions of the Dyson-Schwinger equation for the quark propagator in the case of non-zero current quark mass. One solution corresponds to the "NambuGoldstone" phase and the other one corresponds to the "Wigner" phase in the chiral limit.