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Title: Sigma models with negative curvature

Here, we construct Higgs Effective Field Theory (HEFT) based on the scalar manifold Hn, 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.
Authors:
ORCiD logo [1] ;  [2] ;  [2]
  1. Univ. of California at San Diego, La Jolla, CA (United States)
  2. Univ. of California at San Diego, La Jolla, CA (United States); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Publication Date:
Grant/Contract Number:
SC0009919
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 756; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Univ. of California, San Diego, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1242323
Alternate Identifier(s):
OSTI ID: 1256872