Bagger Jonathan A, Feruglio Ferruccio, Zwirner Fabio
Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, USA.
Phys Rev Lett. 2002 Mar 11;88(10):101601. doi: 10.1103/PhysRevLett.88.101601. Epub 2002 Feb 20.
We reconsider the phenomenon of mass generation via coordinate-dependent compactifications of higher-dimensional theories on orbifolds. For definiteness, we study a generic five-dimensional theory compactified on S(1)/Z(2). We show that the presence of fixed points, where the fields or their derivatives may be discontinuous, permits new realizations of the Scherk-Schwarz mechanism where, for example, the mass terms are localized at the orbifold fixed points. Our technique can be used to describe the explicit breaking of global flavor symmetries and supersymmetries by brane-localized mass terms. It can also be applied to the spontaneous breaking of local symmetries, such as gauge symmetries or supergravities.
我们重新审视通过在orbifold上对高维理论进行坐标相关紧致化来产生质量的现象。为明确起见，我们研究在S(1)/Z(2)上紧致化的一般五维理论。我们表明，定点的存在（场或其导数可能在此处不连续）允许Scherk-Schwarz机制有新的实现方式，例如，质量项局域在orbifold定点处。我们的技术可用于描述由膜局域质量项导致的全局味对称性和超对称性的显式破缺。它也可应用于局部对称性的自发破缺，如规范对称性或超引力。
