Enhanced worldvolume supersymmetry and intersecting domain walls in N=1 supersymmetric QCD
Enhanced worldvolume supersymmetry and intersecting domain walls in N=1 supersymmetric QCD
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N=1 超对称 QCD 中增强的世界体积超对称性和相交畴壁
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发表时间：
2004
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通讯作者：
A. Vainshtein
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作者：
A. Ritz;M. Shifman;A. Vainshtein
研究了具有N{subf}=N味的N=1超对称QCD中1/2超对称域壁的世界体积动力学，并证明了伴随着破裂味道对称性的约化模空间的超对称性增强.我们给出了世界体积超代数的显式构造，它对应于2+1D中的N=2 Kaehler sigma模型，该模型由U(1)杀死向量的范数平方给出的势所变形，该势是由不等夸克质量破坏的味道对称性引起的。这一框架导致了对新的两壁结结构的世界体积的描述，这些结构是1/4超对称物体，但当被视为墙世界体积上的扭结时，仍然保留了两个超电荷。
We study the worldvolume dynamics of 1/2-supersymmetric domain walls in N=1 supersymmetric QCD with N{sub f}=N flavors, and exhibit an enhancement of supersymmetry for the reduced moduli space associated with broken flavor symmetries. We provide an explicit construction of the worldvolume superalgebra which corresponds to an N=2 Kaehler sigma model in 2+1D deformed by a potential, given by the norm squared of a U(1) Killing vector, resulting from the flavor symmetries broken by unequal quark masses. This framework leads to a worldvolume description of novel two-wall-junction configurations, which are 1/4-supersymmetric objects, but nonetheless preserve two supercharges when viewed as kinks on the wall worldvolume.