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Title: Impersonating the Standard Model Higgs boson: Alignment without decoupling

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [4]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)
  2. Univ. of California, Santa Barbara, CA (United States); Argonne National Lab., Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States)
  4. Univ. of Chicago, Chicago, IL (United States); Argonne National Lab., Argonne, IL (United States)

In models with an extended Higgs sector there exists an alignment limit, in which the lightest CP-even Higgs boson mimics the Standard Model Higgs. The alignment limit is commonly associated with the decoupling limit, where all non-standard scalars are significantly heavier than the Z boson. However, alignment can occur irrespective of the mass scale of the rest of the Higgs sector. In this work we discuss the general conditions that lead to “alignment without decoupling”, therefore allowing for the existence of additional non-standard Higgs bosons at the weak scale. The values of tan β for which this happens are derived in terms of the effective Higgs quartic couplings in general two-Higgs-doublet models as well as in supersymmetric theories, including the MSSM and the NMSSM. In addition, we study the information encoded in the variations of the SM Higgs-fermion couplings to explore regions in the mA – tan β parameter space.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1226268
Report Number(s):
FERMILAB-PUB-13-455-T; MCTP-13-31; ANL-HEP-PR-13-50; EFI-13-27; arXiv eprint number arXiv:1310.2248
Journal Information:
Journal of High Energy Physics (Online), Vol. 2014, Issue 4; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 168 works
Citation information provided by
Web of Science

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Symmetries and mass degeneracies in the scalar sector journal January 2019
Enhanced Higgs associated production with a top quark pair in the NMSSM with light singlets journal February 2017
The effective Standard Model after LHC Run I journal March 2015
Neutrino masses in a two Higgs doublet model with a U(1) gauge symmetry journal April 2019
Light (and darkness) from a light hidden Higgs journal June 2018
Interference effects in the decays of spin-zero resonances into γγ and t t ¯ $$ t\overline{t} $$ journal July 2016
Higgs pair production via gluon fusion in the Two-Higgs-Doublet Model journal September 2014
Alignment limit in 2HDM: robustness put to test journal September 2018
Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft Z 2 breaking journal November 2015
Next-to-leading order unitarity fits in Two-Higgs-Doublet models with soft ℤ 2 breaking journal November 2016
A comprehensive approach to dark matter studies: exploration of simplified top-philic models journal November 2016
Challenges and opportunities for heavy scalar searches in the t t ¯ $$ t\overline{t} $$ channel at the LHC journal November 2016
Learning from Higgs physics at future Higgs factories journal December 2017
Supervised Deep Learning in High Energy Phenomenology: a Mini Review journal August 2019
Natural Alignment in the Two Higgs Doublet Model journal July 2017
Alignment limit in three Higgs-doublet models journal August 2019
Charged Higgs bosons in naturally aligned two-Higgs-doublet models at the LHC journal August 2019
Relaxed constraints on the heavy scalar masses in 2HDM journal September 2019
Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models journal October 2019
Blind spots for neutralino dark matter in the MSSM with an intermediate m A journal July 2014
Complementarity between nonstandard Higgs boson searches and precision Higgs boson measurements in the MSSM journal February 2015
LHC searches for the C P -odd Higgs boson with a jet substructure analysis journal April 2015
C P -odd component of the lightest neutral Higgs boson in the MSSM journal May 2015
Higgs bosons in heavy supersymmetry with an intermediate m A journal October 2015
Scrutinizing the alignment limit in two-Higgs-doublet models. II. m H = 125    GeV journal February 2016
Closing the wedge: Search strategies for extended Higgs sectors with heavy flavor final states journal April 2016
When matching matters: Loop effects in Higgs effective theory journal November 2016
Collider signatures of flavorful Higgs bosons journal December 2016
p p A Z h and the wrong-sign limit of the two-Higgs-doublet model journal March 2018
Muon g 2 in a U ( 1 ) -symmetric two-Higgs-doublet model journal February 2019
Natural stabilization of the Higgs boson’s mass and alignment journal March 2019
Quartic coupling unification in the maximally symmetric 2HDM journal June 2019
The light and heavy Higgs interpretation of the MSSM journal February 2017
The impact of two-loop effects on the scenario of MSSM Higgs alignment without decoupling journal November 2017
Status of the charged Higgs boson in two Higgs doublet models journal March 2018
Higgs alignment from extended supersymmetry journal August 2018
R-symmetry for Higgs alignment without decoupling journal February 2019
Current status of MSSM Higgs sector with LHC 13 TeV data journal April 2019
High energy physics and cosmology at the unification frontier: Opportunities and challenges in the coming years journal July 2018
MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond text January 2019
MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond journal July 2019
A comprehensive approach to dark matter studies: exploration of simplified top-philic models text January 2016
The light and heavy Higgs interpretation of the MSSM text January 2017
Learning from Higgs Physics at Future Higgs Factories text January 2017
Impact of Vacuum Stability Constraints on the Phenomenology of Supersymmetric Models text January 2018
Charged Higgs Bosons in Naturally Aligned Two Higgs Doublet Models at the LHC text January 2019
MSSM Higgs boson searches at the LHC: benchmark scenarios for Run 2 and beyond text January 2019
Impact of vacuum stability constraints on the phenomenology of supersymmetric models text January 2019
Probing wrong-sign Yukawa couplings at the LHC and a future linear collider text January 2014
Blind Spots for neutralino Dark Matter in the MSSM with an intermediate m_A text January 2014
Higgs pair production via gluon fusion in the Two-Higgs-Doublet Model text January 2014
Maximally Symmetric Two Higgs Doublet Model with Natural Standard Model Alignment text January 2014
Search for a 'stable alignment limit' in two Higgs-doublet models text January 2015
Closing the Wedge: Search Strategies for Extended Higgs Sectors with Heavy Flavor Final States text January 2016
Probing the Higgs Sector of the Minimal Left-Right Symmetric Model at Future Hadron Colliders text January 2016
A comprehensive approach to dark matter studies: exploration of simplified top-philic models text January 2016
Next-to-leading order unitarity fits in Two-Higgs-Doublet models with soft $\mathbb{Z}_2$ breaking text January 2016
Spontaneous CP violation in the 2HDM: physical conditions and the alignment limit text January 2016
Collider Signatures of Flavorful Higgs Bosons text January 2016
Natural Alignment in the Two Higgs Doublet Model text January 2017
Status of the Charged Higgs Boson in Two Higgs Doublet Models text January 2017
Alignment Limit in 2HDM: Robustness put to test text January 2018
Light (and darkness) from a light hidden Higgs text January 2018
MSSM Higgs Boson Searches at the LHC: Benchmark Scenarios for Run 2 and Beyond text January 2018
Natural Stabilization of the Higgs Boson's Mass and Alignment text January 2018
R-symmetry for Higgs alignment without decoupling text January 2018
Charged Higgs Bosons in Naturally Aligned Two Higgs Doublet Models at the LHC text January 2018

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