Phenomenology of an extended Higgs portal inflation model after Planck 2013

Huang, Fa Peng; Li, Chong Sheng; Shao, Ding Yu; Wang, Jian

doi:10.1140/epjc/s10052-014-2990-4

Cited by 9 publications

(10 citation statements)

References 40 publications

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“…In recent years, many extensions to the standard Higgs inflation model have been discussed [15][16][17][18][19][20][21][22]. Additionally, there have been many efforts to connect Higgs inflation to the dark matter paradigm [23][24][25][26][27][28][29][30][31]. In particular, there have been attempts at constructing Higgs-portal type models [27][28][29], where dark matter is coupled to the standard model through the Higgs field.…”

Section: Introductionmentioning

confidence: 99%

Higgs portal to inflation and fermionic dark matter

Aravind

Xiao

2016

Phys. Rev. D

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We investigate an inflationary model involving a gauge singlet scalar and fermionic dark matter. The mixing between the singlet scalar and the Higgs boson provides a portal to dark matter. The inflaton could either be the Higgs boson or the singlet scalar, and slow roll inflation is realized via its non-minimal coupling to gravity. In this setup, the effective scalar potential is stabilized by the mixing between two scalars and coupling with dark matter. We study constraints from collider searches, relic density and direct detection, and find that dark matter mass should be around half the mass of either the Higgs boson or singlet scalar. Using the renormalization group equation improved scalar potential and putting all the constraints together, we show that the inflationary observables n s − r are consistent with current Planck

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Section: Introductionmentioning

confidence: 99%

Higgs portal to inflation and fermionic dark matter

Aravind

Xiao

2016

Phys. Rev. D

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“…In refs. [33,88] this consideration has been applied to Weinberg's Higgs portal model. If the light Higgs boson is lighter than 354 MeV, the decay of K meson to a pion plus missing energy is a more powerful probe.…”

Section: Sn 1987a Constraints On Weinberg's Higgs Portal Modelmentioning

confidence: 99%

Supernovae and Weinberg’s Higgs portal dark radiation and dark matter

2017

J. High Energ. Phys.

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The observed burst duration and energies of the neutrinos from Supernova 1987A strongly limit the possibility of any weakly-interacting light particle species being produced in the proto-neutron star (PNS) core and leading to efficient energy loss. We reexamine this constraint on Weinberg's Higgs portal model, in which the dark radiation particles (the Goldstone bosons) and the dark matter candidate (a Majorana fermion) interact with Standard Model (SM) fields solely through the mixing of the SM Higgs boson and a light Higgs boson. In order for the Goldstone bosons to freely stream out of the PNS core region, the Higgs portal coupling has to be about a factor of 4-9 smaller than the current collider bound inferred from the SM Higgs invisible decay width. We find that in the energy loss rate calculations, results obtained by using the one-pion exchange (OPE) approximation and the SP07 global fits for the nucleon-nucleon total elastic cross section differ only by a factor 3. The SN 1987A constraints surpass those set by laboratory experiments or by the energy loss arguments in other astrophysical objects such as the gamma-ray bursts, even with other nuclear uncertainties taken into account. Furthermore, the SN 1987A constraints are comparable to bounds from the latest dark matter direct search for low-mass WIMPs ( 10 GeV.)

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“…In this section, we study a concrete attractive relaxion model, assuming a non-minimal coupling of the inflation field φ to gravity, namely (1/2)ξRφ 2 [43]. Such a non-minimal coupling may arise from some quantum gravity effects, such as the Higgs field with asymptotically safe gravity [44,45].…”

Section: A Concrete Modelmentioning

confidence: 99%

“…Such a non-minimal coupling may arise from some quantum gravity effects, such as the Higgs field with asymptotically safe gravity [44,45]. We begin the discussion with the following action [43] in the Jordan frame:…”

Section: A Concrete Modelmentioning

confidence: 99%

A possible interpretation of the Higgs mass by the cosmological attractive relaxion

Huang

Cai

et al. 2016

Chinese Phys. C

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Recently, a novel idea [1] has been proposed to relax the electroweak hierarchy problem through the cosmological inflation and the axion periodic potential. Here, we further assume that only the attractive inflation is needed to explain the light mass of the Higgs boson, where we do not need a specified periodic potential of the axion field. Attractive inflation during the early universe drives the Higgs boson mass from the large value in the early universe to the small value at present, where the Higgs mass is an evolving parameter of the Universe. Thus, the small Higgs mass can technically originate from the cosmological evolution rather than dynamical symmetry or anthropics. Further, we study the possible collider signals or constraints at future lepton collier and the possible constraints from the muon anomalous magnetic moment. A concrete attractive relaxion model is also discussed, which is consistent with the data of Planck 2015. PACS numbers: 12.60.Fr * Electronic address: huangfp@ihep.ac.cn 1 Many mechanisms have been proposed to solve the EW hierarchy problem, including the extra dimensions theory, the supersymmetry theory, and the compositeness of the Higgs boson [2-6]. However, all these new models lead to a technically natural EW scale [39], since the current experimental data from the colliders and indirect experiments have put their model parameters into fine-tuned regions. Or, we can just ignore the EW hierarchy problem if we believe the anthropic principle.

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Phenomenology of an extended Higgs portal inflation model after Planck 2013

Cited by 9 publications

References 40 publications

Higgs portal to inflation and fermionic dark matter

Higgs portal to inflation and fermionic dark matter

Supernovae and Weinberg’s Higgs portal dark radiation and dark matter

A possible interpretation of the Higgs mass by the cosmological attractive relaxion

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