On-shell constructibility of Born amplitudes in spontaneously broken gauge theories
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DOI: 10.1007/jhep02(2020)073
Abstract: We perform a comprehensive study of on-shell recursion relations for Born amplitudes in spontaneously broken gauge theories and identify the minimal shifts required to construct amplitudes with a given particle content and spin quantum numbers.… read more here.
Keywords: born amplitudes; gauge theories; amplitudes spontaneously; spontaneously broken ... See more keywords
Critical fermions with spontaneously broken scale symmetry
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DOI: 10.1103/physrevd.107.l101701
Abstract: We study relativistic fermions in three euclidean dimensions with four- and six-fermion interactions of the Gross-Neveu type. In the limit of many fermion flavors, and besides the isolated free fixed point, the theory displays a… read more here.
Keywords: critical fermions; scale symmetry; spontaneously broken; fermions spontaneously ... See more keywords
Homogeneous balls in a spontaneously broken U(1) gauge theory
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DOI: 10.1103/physrevd.99.056019
Abstract: We study the coupled system consisting of a complex matter scalar field, a U(1) gauge field, and a complex Higgs scalar field that causes spontaneously symmetry breaking. We show by numerical calculations that there are… read more here.
Keywords: field; homogeneous balls; balls spontaneously; scalar field ... See more keywords