Multifield dynamics in Higgs-otic inflation

@article{Bielleman2016MultifieldDI,
  title={Multifield dynamics in Higgs-otic inflation},
  author={Sjoerd Bielleman and Luis E. Ib{\'a}{\~n}ez and Francisco Gil Pedro and Irene Valenzuela},
  journal={Journal of High Energy Physics},
  year={2016},
  volume={2016},
  pages={1-31}
}
A bstractIn Higgs-otic inflation a complex neutral scalar combination of the h0 and H0 MSSM Higgs fields plays the role of inflaton in a chaotic fashion. The potential is protected from large trans-Planckian corrections at large inflaton if the system is embedded in string theory so that the Higgs fields parametrize a D-brane position. The inflaton potential is then given by a DBI+CS D-brane action yielding an approximate linear behaviour at large field. The inflaton scalar potential is a 2… 

D6-branes and axion monodromy inflation

A bstractWe develop new scenarios of large field inflation in type IIA string compactifications in which the key ingredient is a D6-brane that creates a potential for a B-field axion. The potential

Higgs-otic inflation and moduli stabilization

A bstractWe study closed-string moduli stabilization in Higgs-otic inflation in Type IIB orientifold backgrounds with fluxes. In this setup large-field inflation is driven by the vacuum energy of

The DBI action, higher-derivative supergravity, and flattening inflaton potentials

A bstractIn string theory compactifications it is common to find an effective Lagrangian for the scalar fields with a non-canonical kinetic term. We study the effective action of the scalar position

Perturbative reheating in Sneutrino-Higgs cosmology

A bstractThe theory of perturbative reheating in the Sneutrino-Higgs cosmology of the B-L MSSM is presented. It is shown that following an epoch of inflation consistent with all Planck2015 data, the

The swampland conjecture and F-term axion monodromy inflation

A bstractWe continue the investigation of F-term axion monodromy inflation in string theory, while seriously taking the issue of moduli stabilization into account. For a number of closed and open

Supersymmetric Sneutrino-Higgs Inflation

An axion-induced SM/MSSM Higgs landscape and the Weak Gravity Conjecture

A bstractWe construct models in which the SM Higgs mass scans in a landscape. This is achieved by coupling the SM to a monodromy axion field through Minkowski 3-forms. The Higgs mass scans with steps

Relaxion monodromy and the Weak Gravity Conjecture

A bstractThe recently proposed relaxion models require extremely large trans-Planckian axion excursions as well as a potential explicitly violating the axion shift symmetry. The latter property is

Microscopic origin of volume modulus inflation

High-scale string inflationary models are in well-known tension with low-energy supersymmetry. A promising solution involves models where the inflaton is the volume of the extra dimensions so that

Minkowski 3-forms, flux string vacua, axion stability and naturalness

A bstractWe discuss the role of Minkowski 3-forms in flux string vacua. In these vacua all internal closed string fluxes are in one to one correspondence with quantized Minkowski 4-forms. By

References

SHOWING 1-10 OF 84 REFERENCES

Higgs-otic inflation and string theory

A bstractWe propose that inflation is driven by a (complex) neutral Higgs of the MSSM extension of the SM, in a chaotic-like inflation setting. The SUSY breaking soft term masses are of order 1012 −

F-term axion monodromy inflation

A bstractThe continuous shift symmetry of axions is at the heart of several realizations of inflationary models. In particular, axion monodromy inflation aims at achieving super-Planckian field

The inflaton as an MSSM Higgs and open string modulus monodromy inflation

A shift symmetry in the Higgs sector: experimental hints and stringy realizations

A bstractWe interpret reported hints of a Standard Model Higgs boson at ~ 125 GeV in terms of high-scale supersymmetry breaking with a shift symmetry in the Higgs sector. More specifically, the Higgs

Higgs-Dilaton Cosmology: an effective field theory approach

The Higgs-dilaton cosmological model is able to describe simultaneously an inflationary expansion in the early Universe and a dark energy dominated stage responsible for the present day acceleration.

On axion monodromy inflation in warped throats

A bstractRecent models of axion monodromy inflation in string theory link the inflationary potential and the moduli stabilization potential. Realistic inflationary models require mechanisms to

An ignoble approach to large field inflation

We study an inflationary model developed by Kaloper and Sorbo, in which the inflaton is an axion with a sub-Planckian decay constant, whose potential is generated by mixing with a topological 4-form

On reaching the adiabatic limit in multi-field inflation

We calculate the scalar spectral index ns and the tensor-to-scalar ratio r in a class of recently proposed two-field no-scale inflationary models in supergravity. We show that, in order to obtain

Higgs inflation as a mirage

A bstractWe discuss a simple unitarization of Higgs inflation that is genuinely weakly coupled up to Planckian energies. A large non-minimal coupling between the Higgs and the Ricci curvature is

The Higgs mass from a String-Theoretic Perspective

...