Inflationary gravitational leptogenesis

Article Astronomy & Astrophysics

Gravitational dark matter: Free streaming and phase space distribution

Md Riajul Haque et al.

Summary: Gravitational dark matter, the simplest scenario in early Universe cosmology, is studied in this research. The production mechanism, mass range, and phase space distribution of gravitational dark matter are discussed.

PHYSICAL REVIEW D (2022)

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Article Astronomy & Astrophysics

Gravitational portals in the early Universe

Simon Clery et al.

Summary: In this paper, we investigate the production of matter and radiation during reheating after inflation, focusing on gravitational interactions. We consider the exchange of graviton in the scattering of the inflaton or particles in the newly created radiation bath. We analyze the gravitational production of dark matter and radiation, and derive a lower bound on the maximal temperature for a specific scenario. The importance of each process in the production of radiation and dark matter is compared.

PHYSICAL REVIEW D (2022)

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Article Astronomy & Astrophysics

Gravitational portals with nonminimal couplings

Simon Clery et al.

Summary: This study considers the effects of nonminimal couplings to curvature and investigates three types of scalars: the Higgs boson, the inflaton, and a scalar dark matter candidate. The study finds that these nonminimal couplings increase the production of dark matter and contribute to the radiation bath during reheating. Additionally, these couplings may also increase the maximum temperature during reheating.

PHYSICAL REVIEW D (2022)

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Article Astronomy & Astrophysics

BICEP/Keck constraints on attractor models of inflation and reheating

John Ellis et al.

Summary: Recent BICEP/Keck data, combined with previous WMAP and Planck data, provide strong new constraints on the tilt in the scalar perturbation spectrum (n(s)) and the tensor-to-scalar ratio (r). These constraints are evaluated in attractor models of inflation formulated in no-scale supergravity, and they determine the number of e-folds of inflation (N-*), the magnitude of the inflaton coupling to matter (y), and the reheating temperature (T-reh). The 68% C.L. region prefers large values of N-*, y, and T-reh, which are constrained by the production of gravitinos and supersymmetric dark matter.

PHYSICAL REVIEW D (2022)

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Article Astronomy & Astrophysics

Interplay between neutrino and gravity portals for FIMP dark matter

Marco Chianese et al.

Summary: The study focuses on the interplay between the neutrino portal through the right-handed neutrinos and the gravity portal through the massless spin-2 graviton in producing dark matter particles in the early universe. By exploring the parameter space and conducting analysis on the Littlest Seesaw model, it reveals the key elements involved in the production of dark matter particles.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

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Article Astronomy & Astrophysics

Inflaton oscillations and post-inflationary reheating

Marcos A. G. Garcia et al.

Summary: The perturbative decay of the inflaton and the effects of non-instantaneous reheating on temperature and final state mass were investigated. It was found that the spin statistics of the final state can affect the temperature evolution, and the final state mass can lead to kinematic suppression or enhancement.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

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Article Physics, Particles & Fields

Gravitational production of a conformal dark sector

Michele Redi et al.

Summary: This article examines dark sectors with gravitational couplings to the Standard Model, focusing on production in the relativistic regime and the impact of interactions leading to various phenomena. An illustrative example of the dark glueball scenario as a viable dark matter candidate is provided, with an extension to strongly coupled CFTs and their holographic duals with the dark dilaton as the dark matter candidate.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

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Correction Astronomy & Astrophysics

Planck 2018 results: VI. Cosmological parameters (vol 641, A6, 2020)

N. Aghanim et al.

ASTRONOMY & ASTROPHYSICS (2021)

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Article Astronomy & Astrophysics

Gravitational SIMPs

Basabendu Barman et al.

Summary: The study suggests that the self-interaction of dark matter can expand the viable parameter space, allowing lower reheating temperatures to be compatible with the observed relic abundance of cosmic microwave background radiation. This has significant implications for the yield of dark matter.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

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Article Astronomy & Astrophysics

Dark matter and leptogenesis from gravitational production

Nicolas Bernal et al.

Summary: The study explores the possibility that dark matter is generated purely from gravitational scatterings together with long-lived heavy Majorana right-handed neutrinos. The late decay of these neutrinos could inject significant entropy into the thermal bath, affecting the dark matter abundance and cosmic baryon asymmetry.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2021)

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Article Astronomy & Astrophysics

Gravitational production of dark matter during reheating

Yann Mambrini et al.

Summary: This study investigates the direct s-channel gravitational production of dark matter during the reheating process, finding that the abundance of dark matter primarily depends on the combination T-max(4)/TRHMP3 and can be produced at sufficient densities over a wide range of dark matter masses, from 1 GeV to 1 ZeV.

PHYSICAL REVIEW D (2021)

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Article Astronomy & Astrophysics

Planck 2018 results: X. Constraints on inflation

Y. Akrami et al.

ASTRONOMY & ASTROPHYSICS (2020)

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Article Astronomy & Astrophysics

Planck 2018 results: VI. Cosmological parameters

N. Aghanim et al.

ASTRONOMY & ASTROPHYSICS (2020)

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Article Astronomy & Astrophysics

Impact of Higgs portal on gravity-mediated production of superheavy dark matter

Marco Chianese et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2020)

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Article Astronomy & Astrophysics

Inflation and leptogenesis in high-scale supersymmetry

Kunio Kaneta et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Reheating and post-inflationary production of dark matter

Marcos A. G. Garcia et al.

PHYSICAL REVIEW D (2020)

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Article Astronomy & Astrophysics

Theory and phenomenology of Planckian interacting massive particles as dark matter

Mathias Garny et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2018)

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Article Physics, Particles & Fields

Production of purely gravitational dark matter

Yohei Ema et al.

JOURNAL OF HIGH ENERGY PHYSICS (2018)

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Article Astronomy & Astrophysics

Spin-2 portal dark matter

Nicolas Bernal et al.

PHYSICAL REVIEW D (2018)

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Article Physics, Particles & Fields

Leptogenesis after chaotic sneutrino inflation and the supersymmetry breaking scale

Fredrik Bjoerkeroth et al.

NUCLEAR PHYSICS B (2017)

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Article Astronomy & Astrophysics

On thermal gravitational contribution to particle production and dark matter

Yong Tang et al.

PHYSICS LETTERS B (2017)

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Article Astronomy & Astrophysics

Isocurvature constraints on portal couplings

Kimmo Kainulainen et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2016)

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Article Physics, Multidisciplinary

Planckian Interacting Massive Particles as Dark Matter

Mathias Garny et al.

PHYSICAL REVIEW LETTERS (2016)

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Article Astronomy & Astrophysics

Gravitational particle production in oscillating backgrounds and its cosmological implications

Yohei Ema et al.

PHYSICAL REVIEW D (2016)

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Article Astronomy & Astrophysics

Gravitational effects on inflaton decay

Yohei Ema et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2015)

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Article Astronomy & Astrophysics

Phenomenological aspects of no-scale inflation models

John Ellis et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2015)

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Article Physics, Particles & Fields

Flavour covariant transport equations: An application to resonant leptogenesis

P. S. Bhupal Dev et al.

NUCLEAR PHYSICS B (2014)

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Article Astronomy & Astrophysics

A no-scale supergravity framework for sub-Planckian physics

John Ellis et al.

PHYSICAL REVIEW D (2014)

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Article Astronomy & Astrophysics

Universality class in conformal inflation

Renata Kallosh et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2013)

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Article Physics, Particles & Fields

Spontaneous B-L breaking as the origin of the hot early universe

W. Buchmueller et al.

NUCLEAR PHYSICS B (2012)

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Article Astronomy & Astrophysics

Non-minimal sneutrino inflation, Peccei-Quinn phase transition and non-thermal leptogenesis

C. Pallis et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2011)

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Article Astronomy & Astrophysics

Sneutrino hybrid inflation and nonthermal leptogenesis

Stefan Antusch et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2010)

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Correction Physics, Particles & Fields

Cosmic microwave background, matter-antimatter asymmetry and neutrino masses (vol 643, pg 367, 2002)

W. Buchmueller et al.

NUCLEAR PHYSICS B (2008)

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Article Astronomy & Astrophysics

Primordial curvature fluctuation and its non-Gaussianity in models with modulated reheating

Kazuhide Ichikawa et al.

PHYSICAL REVIEW D (2008)

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Review Physics, Multidisciplinary

Leptogenesis

Sacha Davidson et al.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2008)

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Article Education, Scientific Disciplines

Graviton physics

Barry R. Holstein

AMERICAN JOURNAL OF PHYSICS (2006)

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Article Physics, Particles & Fields

Flavour matters in leptogenesis

Asmaa Abada et al.

JOURNAL OF HIGH ENERGY PHYSICS (2006)

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Article Astronomy & Astrophysics

D-term inflation and leptogenesis by a right-handed sneutrino

K Kadota et al.

PHYSICAL REVIEW D (2006)

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Correction Astronomy & Astrophysics

Low-scale standard supersymmetric leptogenesis (vol 609, pg 351, 2005)

M Raidal et al.

PHYSICS LETTERS B (2006)

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Article Astronomy & Astrophysics

Low-scale standard supersymmetric leptogenesis

M Raidal et al.

PHYSICS LETTERS B (2005)

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Article Astronomy & Astrophysics

Sneutrino inflation in the light of WMAP: reheating, leptogenesis and flavour-violating lepton decays

J Ellis et al.

PHYSICS LETTERS B (2004)

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Review Physics, Particles & Fields

Resonant leptogenesis

A Pilaftsis et al.

NUCLEAR PHYSICS B (2004)

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Review Physics, Particles & Fields

Towards a complete theory of thermal leptogenesis in the SM and MSSM

GF Giudice et al.

NUCLEAR PHYSICS B (2004)

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Article Astronomy & Astrophysics

Limits on Treh for thermal leptogenesis with hierarchical neutrino masses

PH Chankowski et al.

PHYSICS LETTERS B (2003)

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Article Physics, Particles & Fields

The neutrino mass window for baryogenesis

W Buchmüller et al.

NUCLEAR PHYSICS B (2003)

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Article Physics, Particles & Fields

Cosmic microwave background, matter-antimatter asymmetry and neutrino masses

W Buchmüller et al.

NUCLEAR PHYSICS B (2002)

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Article Astronomy & Astrophysics

A lower bound on the right-handed neutrino mass from leptogenesis

S Davidson et al.

PHYSICS LETTERS B (2002)

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Article Physics, Particles & Fields

Baryogenesis through leptogenesis

R Barbieri et al.

NUCLEAR PHYSICS B (2000)

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Inflationary gravitational leptogenesis

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