FIMP Dark Matter in Clockwork/Linear Dilaton extra-dimensions

Bernal, Nicolás; Donini, A.; Folgado, Miguel G.; Rius, Nuria

doi:10.1007/jhep04(2021)061

Cited by 17 publications

(14 citation statements)

References 82 publications

(136 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Second, the gravitational production can be enhanced in scenarios with extra dimensions, see e.g., Refs. [81][82][83][84][85][86][87][88].…”

Section: Inflaton Mediationmentioning

confidence: 99%

Polynomial Inflation and Dark Matter

Bernal,

2021

Preprint

Self Cite

View full text Add to dashboard Cite

We present a minimal UV complete framework to embed inflation and dark matter by extending the standard model with a singlet real scalar field (the inflaton) and a singlet fermonic field acting as dark matter. The inflaton features the most general renormalizable polynomial up to quartic order, which is flat due to the existence of a perturbed inflection-point, comfortably fitting CMB measurements. We also analyze (p)reheating by considering the Higgs production via inflaton decay. In the early universe, dark matter can be generated by the mediation of gravitons or inflatons. However, the production via the direct decay of the inflatons dominates, making viable a large range of dark matter masses, from O(10 −5 ) GeV to O(10 11 ) GeV.

show abstract

“…Second, the gravitational production can be enhanced in scenarios with extra dimensions, see e.g., Refs. [81][82][83][84][85][86][87][88].…”

Section: Inflaton Mediationmentioning

confidence: 99%

Polynomial Inflation and Dark Matter

Bernal,

2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…2 It was initially pointed out that such boosts only depend on the mass dimension of the operator and the ratio T max /T rh , however the equation-of-state parameter of the inflaton during reheating also plays a major role [25][26][27][28]. Subsequent papers have explored the impact of this boost factor in specific models [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet Freeze-in with a Time-dependent Inflaton Decay

Barman,

Bernal,

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

It is typically assumed that during reheating the inflaton decays with a constant decay width. However, this is not guaranteed and can have a strong impact on the dark matter (DM) genesis. In the context of the ultraviolet (UV) freeze-in mechanism, if the operators connecting the dark and visible sectors are of sufficiently high mass dimension, the bulk of the DM abundance is produced during and not after reheating. We study here the impact of a time-dependent decay width of the inflaton on the DM abundance, emphasizing the differences with respect to the cases where the decay is either instantaneous or constant. We also provide concrete examples for DM production via UV freeze-in, e.g., from 2-to-2 scatterings of standard model particles, or from inflaton scatterings or decays, elucidating how the time-dependence influences the DM yield."All war is a symptom of man's failure as a thinking animal."-John Steinbeck, 'Once There Was A War ' (1958)

show abstract

“…In the second case of the Infrared (IR) freeze-in, the relic density is sourced via small renormalizable couplings. Various techniques have been adopted to arrive at these two scenarios [14][15][16][17][18][19][20][21][22][23][23][24][25][26][27][28][29][30]. In recent times, there have also been attempts towards a full effective theory for freeze-in DM [31].…”

Section: Introductionmentioning

confidence: 99%

Freezing In with lepton flavored fermions

et al. 2021

View full text Add to dashboard Cite

Dark, chiral fermions carrying lepton flavor quantum numbers are natural candidates for freeze-in. Small couplings with the Standard Model fermions of the order of lepton Yukawas are `automatic' in the limit of Minimal Flavor Violation. In the absence of total lepton number violating interactions, particles with certain representations under the flavor group remain absolutely stable. For masses in the GeV-TeV range, the simplest model with three flavors, leads to signals at future direct detection experiments like DARWIN. Interestingly, freeze-in with a smaller flavor group such as SU(2) is already being probed by XENON1T.

show abstract

FIMP Dark Matter in Clockwork/Linear Dilaton extra-dimensions

Cited by 17 publications

References 82 publications

Polynomial Inflation and Dark Matter

Polynomial Inflation and Dark Matter

Ultraviolet Freeze-in with a Time-dependent Inflaton Decay

Freezing In with lepton flavored fermions

Contact Info

Product

Resources

About