Higgs inflation with singlet scalar dark matter and right-handed neutrino in light of BICEP2

Haba, Naoyuki; Takahashi, Ryo

doi:10.1103/physrevd.89.115009

Cited by 33 publications

(29 citation statements)

References 66 publications

(49 reference statements)

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“…whereλ σ was already introduced in (44). Importantly,λ H runs with the couplings in the full SMASH model, and so it is different from the previously defined λ H , see (77), which runs (by definition) only with the SM field content. Armed with these results, we can now easily determine the stability conditions by considering two cases, depending on the sign of λ Hσ .…”

Section: Effective Potential In the Large-field And Small-field Regimesmentioning

confidence: 81%

“…the possible relation between the seesaw mechanism and either the axion [29,[50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68], or Higgs (Hidden Scalar) Inflation [69][70][71]. A relation between the latter and scalar [72][73][74][75] or fermionic [76] WIMP dark matter (plus right-handed (RH) neutrinos [77,78]) or axion dark matter [79] has also been studied. Leptogenesis and dark matter have not only been linked in the νMSM, but also in works such as [80].…”

Section: Introductionmentioning

confidence: 99%

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Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke

Ballesteros

Redondo

Ringwald³

et al. 2017

J. Cosmol. Astropart. Phys.

201

309

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We present a minimal extension of the Standard Model (SM) providing a consistent picture of particle physics from the electroweak scale to the Planck scale and of cosmology from inflation until today. Three right-handed neutrinos N i , a new color triplet Q and a complex SM-singlet scalar σ, whose vacuum expectation value v σ ∼ 10 11 GeV breaks lepton number and a Peccei-Quinn symmetry simultaneously, are added to the SM. At low energies, the model reduces to the SM, augmented by seesaw generated neutrino masses and mixing, plus the axion. The latter solves the strong CP problem and accounts for the cold dark matter in the Universe. The inflaton is comprised by a mixture of σ and the SM Higgs, and reheating of the Universe after inflation proceeds via the Higgs portal. Baryogenesis occurs via thermal leptogenesis. Thus, five fundamental problems of particle physics and cosmology are solved at one stroke in this unified Standard Model -Axion -seesawHiggs portal inflation (SMASH) model. It can be probed decisively by upcoming cosmic microwave background and axion dark matter experiments.

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Section: Effective Potential In the Large-field And Small-field Regimesmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke

Ballesteros

Redondo

Ringwald³

et al. 2017

J. Cosmol. Astropart. Phys.

201

309

View full text Add to dashboard Cite

show abstract

“…Recent analyses [41][42][43][44][45][46][47][48] of multifield models showed that unlike the single-field models they generically provide density (entropy) perturbations which can induce the curvature perturbation to evolve beyond the cosmological horizon in the process of inflation [49]. Evolution of density perturbations in multifield models should be studied in order to analyze new features in the observables such as non-Gaussianities [50] which are absent in the single-field inflationary models.…”

Section: Jhep12(2017)036mentioning

confidence: 99%

MSSM-inspired multifield inflation

Dubinin

Петрова

Pozdeeva

et al. 2017

J. High Energ. Phys.

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Despite the fact that experimentally with a high degree of statistical significance only a single Standard Model-like Higgs boson is discovered at the LHC, extended Higgs sectors with multiple scalar fields not excluded by combined fits of the data are more preferable theoretically for internally consistent realistic models of particle physics. We analyze the inflationary scenarios which could be induced by the two-Higgs-doublet potential of the Minimal Supersymmetric Standard Model (MSSM) where five scalar fields have non-minimal couplings to gravity. Observables following from such MSSM-inspired multifield inflation are calculated and a number of consistent inflationary scenarios are constructed. Cosmological evolution with different initial conditions for the multifield system leads to consequences fully compatible with observational data on the spectral index and the tensor-to-scalar ratio. It is demonstrated that the strong coupling approximation is precise enough to describe such inflationary scenarios.

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“…Assuming that in addition to S, the right-handed neutrino survives a low energies, we obtain the following renorm alization group equations (RGE's) for the evolution of the relevant parameters [94,96]:…”

Section: The Higgs Boson Mass From Su(2/2)mentioning

confidence: 99%

Higgs mass, superconnections, and the TeV-scale left-right symmetric model

et al. 2015

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We discuss the physical implications of formulating the Standard Model (SM) in terms of the superconnection formalism involving the superalgebra su(2/1). In particular, we discuss the prediction of the Higgs mass according to the formalism and point out that it is -170 GeV, in clear disagreement with experiment. To remedy this problem, we extend the formalism to the superalgebra su(2/2), which extends the SM to the left-right symmetric model (LRSM) and accommodates a -1 2 6 GeV Higgs boson. Both the SM in the su(2/1) case and the LRSM in the su(2/2) case are argued to emerge at -4 TeV from an underlying theory in which the spacetime geometry is modified by the addition of a discrete extra dimension. The formulation of the exterior derivative in this model space suggests a deep connection between the modified geometry, which can be described in the language of noncommutative geometry, and the spontaneous breaking of the gauge symmetries. The implication is that spontaneous symmetry breaking could actually be geometric/quantum gravitational in nature. The nondecoupling phenomenon seen in the Higgs sector can then be reinterpreted in a new light as due to the mixing of low energy (SM) physics and high energy physics associated with quantum gravity, such as string theory. The phenomenology of a TeV scale LRSM is also discussed, and we argue that some exciting discoveries may await us at the LHC, and other near-future experiments.

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Higgs inflation with singlet scalar dark matter and right-handed neutrino in light of BICEP2

Cited by 33 publications

References 66 publications

Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke

Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke

MSSM-inspired multifield inflation

Higgs mass, superconnections, and the TeV-scale left-right symmetric model

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