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Title: Effective theories of universal theories

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States). Michigan Center for Theoretical Physics

It is well-known but sometimes overlooked that constraints on the oblique parameters (most notably S and T parameters) are generally speaking only applicable to a special class of new physics scenarios known as universal theories. The oblique parameters should not be associated with Wilson coefficients in a particular operator basis in the effective field theory (EFT) framework, unless restrictions have been imposed on the EFT so that it describes universal theories. Here, we work out these restrictions, and present a detailed EFT analysis of universal theories. We find that at the dimension-6 level, universal theories are completely characterized by 16 parameters. They are conveniently chosen to be: 5 oblique parameters that agree with the commonly-adopted ones, 4 anomalous triple-gauge couplings, 3 rescaling factors for the h3, hff, hV V vertices, 3 parameters for hV V vertices absent in the Standard Model, and 1 four-fermion coupling of order yf2. Furthermore, all these parameters are defined in an unambiguous and basis-independent way, allowing for consistent constraints on the universal theories parameter space from precision electroweak and Higgs data.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0007859
OSTI ID:
1327310
Journal Information:
Journal of High Energy Physics (Online), Vol. 2016, Issue 1; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Higgs boson self-coupling measurements using ratios of cross sections text January 2013
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The global electroweak fit at NNLO and prospects for the LHC and ILC text January 2014
Review of Particle Physics text January 2012
Higgs boson self-coupling measurements using ratios of cross sections text January 2013
Effective Lagrangian for a light Higgs-like scalar text January 2013
Higgs boson pair production merged to one jet text January 2014
Pseudo-observables in Higgs decays text January 2015
Higgs pseudo observables and radiative corrections text January 2015
Higgs boson pair production in the D=6 extension of the SM text January 2015
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Higgs At Last text January 2013
Searching for New Physics in the Three-Body Decays of the Higgs-like Particle text January 2013
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Cited By (20)

Precision probes of QCD at high energies journal July 2017
The Ĥ-parameter: an oblique Higgs view journal September 2019
Top-quark physics at the CLIC electron-positron linear collider journal November 2019
Standard model parameters in the tadpole-free pure MS ¯ scheme journal October 2019
Model-independent determination of the triple Higgs coupling at e + e colliders journal March 2018
Probing electroweak precision physics via boosted Higgs-strahlung at the LHC journal November 2018
A global likelihood for precision constraints and flavour anomalies journal June 2019
Diboson at the LHC vs LEP text January 2018
Diboson at the LHC vs LEP journal March 2019
The Ĥ -parameter: an oblique Higgs view text January 2019
Top-quark physics at the CLIC electron-positron linear collider text January 2019
Time to Go Beyond Triple-Gauge-Boson-Coupling Interpretation of W Pair Production text January 2017
CP Violation in Higgs-Gauge Interactions: From Tabletop Experiments to the LHC text January 2019
Top-quark physics at the CLIC electron-positron linear collider text January 2019
On the Validity of the Effective Field Theory Approach to SM Precision Tests text January 2016
Compilation of low-energy constraints on 4-fermion operators in the SMEFT text January 2017
Dimension-six electroweak top-loop effects in Higgs production and decay text January 2018
Top-Quark Physics at the CLIC Electron-Positron Linear Collider text January 2018
Complete One-Loop Matching for a Singlet Scalar in the Standard Model EFT text January 2018
Hilbert Series and Plethystics: Paving the path towards 2HDM- and MLRSM-EFT text January 2019

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