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Sigma Models with Negative Curvature

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arxiv 1602.00706 v1 pith:42KCNS5N submitted 2016-02-01 hep-ph

Sigma Models with Negative Curvature

classification hep-ph
keywords curvaturenegativebosonglobalhefthiggsmanifoldsymmetry
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We construct Higgs Effective Field Theory (HEFT) based on the scalar manifold H^n, which is a hyperbolic space of constant negative curvature. The Lagrangian has a non-compact O(n,1) global symmetry group, but it gives a unitary theory as long as only a compact subgroup of the global symmetry is gauged. Whether the HEFT manifold has positive or negative curvature can be tested by measuring the S-parameter, and the cross sections for longitudinal gauge boson and Higgs boson scattering, since the curvature (including its sign) determines deviations from Standard Model values.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Supersymmetric geometry in non-supersymmetric effective field theory

    hep-th 2026-06 unverdicted novelty 6.0

    Authors construct supersymmetric embeddings for non-SUSY gauge theory operators up to dimension six and use vector bundles to reveal an underlying complex geometry that organizes operators under field redefinitions ac...

  2. The Spurion Massive EFT (SMEFT)

    hep-ph 2026-04 unverdicted novelty 5.0

    SMEFT contact terms are decomposed into spurion structures whose coefficients come from higher-order Higgs singlet combinations, with W/Z masses, mixing, and fermion couplings fully saturated by dimension-eight operators.