Bounds on very low reheating scenarios after Planck

  title={Bounds on very low reheating scenarios after Planck},
  author={P. F. de Salas and Massimiliano Lattanzi and Gianpiero Mangano and Gennaro Miele and Sergio Pastor and Ofelia Pisanti},
  journal={Physical Review D},
We consider the case of very low reheating scenarios [${T}_{\mathrm{RH}}\ensuremath{\sim}\mathcal{O}(\mathrm{MeV})$] with a better calculation of the production of the relic neutrino background (with three-flavor oscillations). At 95% confidence level, a lower bound on the reheating temperature ${T}_{\mathrm{RH}}g4.1\text{ }\text{ }\mathrm{MeV}$ is obtained from big bang nucleosynthesis, while ${T}_{\mathrm{RH}}g4.7\text{ }\text{ }\mathrm{MeV}$ from Planck data (allowing neutrino masses to vary… 

Figures from this paper

ΔNeff and entropy production from early-decaying gravitinos
Gravitinos are a fundamental prediction of supergravity, their mass (${m}_{G}$) is informative of the value of the SUSY breaking scale, and, if produced during reheating, their number density is a
What if ALP dark matter for the XENON1T excess is the inflaton
Abstract The recent XENON1T excess in the electron recoil data can be explained by anomaly-free axion-like particle (ALP) dark matter with mass mϕ = 2.3 ± 0.2 keV and the decay constant $$ {f}_{\phi
Mutated hybrid inflation on brane and reheating temperature
Abstract.In the mutated hybrid-inflation standard case, the spectral index $n_{\rm s}$ns is constrained by the e-folds number N, and the gravitational waves are negligible $(r\sim 10^{-4})$(r∼10-4).
Thermal neutrino portal to sub-MeV dark matter
Thermal relics lighter than an MeV contribute to the energy density of the universe at the time of nucleosynthesis and recombination. Constraints on extra radiation degrees of freedom typically
Gravitational wave generation in a viable scenario of inflationary magnetogenesis
Generation of magnetic fields during inflation is a promising mechanism for the origin of the observed large scale magnetic fields in the universe. Among several attempts, a popular model is one
New physics at nuSTORM
In this work we investigate the usefulness of nuSTORM as a probe of two new-physics scenarios which are sterile neutrinos and non-unitarity of the neutrino mixing matrix. For the sterile neutrino we
Reheating from F-term inflation on brane and gravitino abundance
The braneworld Randall Sundrum II (RSII) model has been introduced to solve the problem related to the inflation standard scenario. The RSII model is based on a modification in the Friedmann equation
E-Model α-Attractor on Brane from Planck Data and Reheating Temperature
In inflation sdandard scenario with α-attractors E-model, the infaltionary parameters determine by the e-fold number N and by the parameter α. Therefore, we study this model in the framework of the
Type I hilltop inflation and the refined swampland criteria
In this paper, I show that type I hilltop inflation under the current observational constaints could have $M_P^2 \frac{V^{\prime\prime}}{V} \sim -\mathcal{O}(10^{-2})$ in the parameter space which is
Polynomial inflation and dark matter
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 fermionic field acting as


  • J. 538, 473
  • 2000
  • Rev. D 72, 043522
  • 2005
  • Rev. D 70, 043506
  • 2004
  • Rev. D 62, 023506
  • 2000
  • Rev. Lett. 82, 4168
  • 1999
  • Rev. D 77, 085020
  • 2008
  • Rev. D 49, 2710
  • 1994
JHEP 0706
  • 002
  • 2007
JCAP 1103
  • 035
  • 2011
  • Rev. D 80, 103504
  • 2009