An Extended Analysis of Heavy Neutral Leptons during Big Bang Nucleosynthesis

Abstract

Heavy Neutral Leptons (HNLs) are strongly motivated by theory due to their capability of simultaneously explaining the observed phenomena of dark matter, neutrino oscillations and the baryon asymmetry of the Universe. The existence of such particles would affect the expansion history of the Universe and the synthesis of primordial abundances of light elements. In this work we review, revise and extend the phenomenology of HNLs during the Big Bang Nucleosynthesis (BBN) epoch for masses up to 1 GeV. This is of great importance, as BBN is able to provide complementary bounds to those from upcoming and proposed laboratory experiments. To this end we have developed a high-precision Boltzmann code that simulates BBN in the presence of HNLs and takes into account all relevant HNL decay channels, as well as subsequent interactions of decay products (thermalization and decay showers), dilution due to QCD phase transition, active neutrino oscillations and corrections to the weak reaction rates. We present robust bounds on the lifetime and mixing angles of HNLs for masses $3\mathrm{MeV}\le m_N\le 1\mathrm{GeV}$ and show that BBN is able to constrain HNL lifetimes down to $0.03-0.05$ s, depending on the mixing pattern. Moreover, combining our results with current experimental searches, we can exclude HNLs that mix purely with electron neutrinos up to $\sim$450 MeV and those that mix purely with muon neutrinos up to $\sim$360 MeV, in both cases for lifetimes up to at least a few tens of seconds. Finally, we compare the BBN constraints with those obtained from Cosmic Microwave Background observations and explore how our results will be improved by a number of upcoming and proposed laboratory experiments.

arXiv comment66 pages, 17 figures, 10 tables - v3: journal version

References in corpus (138)

• Planck 2018 results. V. CMB power spectra and likelihoods
• The $\nu$MSM, Dark Matter and Baryon Asymmetry of the Universe
• Big Bang Nucleosynthesis: 2015
• The $\nu$MSM, Dark Matter and Neutrino Masses
• The Search for Heavy Majorana Neutrinos
• Big-Bang Nucleosynthesis and Hadronic Decay of Long-Lived Massive Particles
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• Relic neutrino decoupling including flavour oscillations
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• Pathways to Naturally Small Neutrino Masses
• The role of sterile neutrinos in cosmology and astrophysics
• Baryogenesis via neutrino oscillations
• MeV-scale Reheating Temperature and Thermalization of Neutrino Background
• Neutrinos in cosmology
• One percent determination of the primordial deuterium abundance
• Big Bang nucleosynthesis and physics beyond the Standard Model
• What is the lowest possible reheating temperature?
• Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report
• Neutrinos and Collider Physics
• Primordial Nucleosynthesis: from precision cosmology to fundamental physics
• Right-Handed Neutrinos at LHC and the Mechanism of Neutrino Mass Generation
• Precise quasielastic neutrino/nucleon cross section
• The effects of He I 10830 on helium abundance determinations
• Precision big bang nucleosynthesis with improved Helium-4 predictions
• Big-Bang Nucleosynthesis After Planck
• Sterile Neutrino Dark Matter
• Cosmological Constraints on Late-time Entropy Production
• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• The Phenomenology of Right Handed Neutrinos
• Global constraints on absolute neutrino masses and their ordering
• Dark Matter, Baryogenesis and Neutrino Oscillations from Right Handed Neutrinos
• MeV-scale reheating temperature and thermalization of oscillating neutrinos by radiative and hadronic decays of massive particles
• Minimal Flavor Violation in the Lepton Sector
• Global constraints on heavy neutrino mixing
• A precision calculation of relic neutrino decoupling
• Minimal Flavour Seesaw Models
• Non-unitarity of the leptonic mixing matrix: Present bounds and future sensitivities
• Dynamical Left-Right Symmetry Breaking
• A possible symmetry of the $\nu$MSM
• Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb
• Lightest sterile neutrino abundance within the nuMSM
• A new determination of the primordial He abundance using the HeI 10830A emission line: cosmological implications
• Left-Right Symmetry Breaking in NJL Approach
• Revisiting Big-Bang Nucleosynthesis Constraints on Long-Lived Decaying Particles
• The nuMSM, leptonic asymmetries, and properties of singlet fermions
• Nonequilibrium Corrections to the Spectra of Massless Neutrinos in the Early Universe
• Big Bang Nucleosynthesis as a Probe of New Physics
• Phenomenology of GeV-scale Heavy Neutral Leptons
• Big Bang Nucleosynthesis and Particle Dark Matter
• Search for heavy neutral leptons in events with three charged leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Neutrinoless double beta decay versus other probes of heavy sterile neutrinos
• Precision Early Universe Thermodynamics made simple: $N_{\mathrm{eff}}$ and Neutrino Decoupling in the Standard Model and beyond
• Heavy sterile neutrinos: Bounds from big-bang nucleosynthesis and SN 1987A
• Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at $\sqrt{s}=8$ TeV
• Refined Bounds on MeV-scale Thermal Dark Sectors from BBN and the CMB
• Dipole portal to heavy neutral leptons
• Testing sterile neutrino extensions of the Standard Model at future lepton colliders
• Search for Neutral Heavy Leptons in a High-Energy Neutrino Beam
• Neutrino decoupling beyond the Standard Model: CMB constraints on the Dark Matter mass with a fast and precise $N_{\mathrm{eff}}$ evaluation
• Global Constraints on a Heavy Neutrino
• Precision Prediction for the Big-Bang Abundance of Primordial Helium
• Search for heavy neutral leptons in decays of $W$ bosons produced in 13 TeV $pp$ collisions using prompt and displaced signatures with the ATLAS detector
• Heavy Neutral Leptons at FASER
• Neutrino energy transport in weak decoupling and big bang nucleosynthesis
• Search for heavy neutrinos at Belle
• PArthENoPE reloaded
• Constraints on Sterile Neutrinos in the MeV to GeV Mass Range
• Thermalisation of light sterile neutrinos in the early universe
• Combining Experimental and Cosmological Constraints on Heavy Neutrinos
• Baryon Asymmetry of the Universe in the NuMSM
• Search for heavy neutrinos with the T2K near detector ND280
• BBN bounds on active-sterile neutrino mixing
• Search for heavy neutrinos in $K^{+}\to {\mu }^{+}{\nu }_H$ decays
• Restrictions on the lifetime of sterile neutrinos from primordial nucleosynthesis
• Testing the low scale seesaw and leptogenesis
• Limits on the Mixing of Tau Neutrino to Heavy Neutrinos
• Experimental bounds on sterile neutrino mixing angles
• Improved Search for Heavy Neutrinos in the Decay $\pi \to e\nu$
• Search for heavy Majorana neutrinos in same-sign dilepton channels in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Sterile neutrino searches via displaced vertices at LHCb
• Cosmological and astrophysical bounds on a heavy sterile neutrino and the KARMEN anomaly
• Heavy Neutral Leptons from low-scale seesaws at the DUNE Near Detector
• Mixing of Active and Sterile Neutrinos
• Neutrino Quantum Kinetic Equations: The Collision Term
• Neutrino Masses
• Probing Leptogenesis at Future Colliders
• Quasielastic axial-vector mass from experiments on neutrino-nucleus scattering
• A frequentist analysis of three right-handed neutrinos with GAMBIT
• Search for heavy neutral lepton production in $K^{+}$ decays to positrons
• Constraining Sterile Neutrinos from Precision Higgs Data
• Supernova bound on keV-mass sterile neutrinos reexamined
• The primordial deuterium abundance: subDLA system at $z_{\mathrm{abs}}=2.437$ towards the QSO J1444+2919
• Minimal flavour violation extensions of the seesaw
• An MCMC determination of the primordial helium abundance
• Search for massive long-lived particles decaying semileptonically in the LHCb detector
• Long-Lived Fermions at AL3X
• Explaining the MiniBooNE excess by a decaying sterile neutrino with mass in the 250 MeV range
• Heavy sterile neutrinos and supernova explosions
• Multi-momentum and multi-flavour active-sterile neutrino oscillations in the early universe: role of neutrino asymmetries and effects on nucleosynthesis
• MeV-scale sterile neutrino decays at the Fermilab Short-Baseline Neutrino program
• Loop level constraints on Seesaw neutrino mixing
• Determination of the primordial helium abundance based on NGC 346 an HII region of the Small Magellanic Cloud
• Heavy neutrino decays at MiniBooNE
• Sensitivity of Lepton Number Violating Meson Decays in Different Experiments
• BBN constraints on MeV-scale dark sectors. Part I. Sterile decays
• Metastable GeV-scale particles as a solution to the cosmological lithium problem
• Improved Constraints on Sterile Neutrinos in the MeV to GeV Mass Range
• Heavy neutral leptons at ANUBIS
• Neutrino dynamics below the electroweak crossover
• A precise deuterium abundance: Re-measurement of the z=3.572 absorption system towards the quasar PKS1937-101
• Big Bang Nucleosynthesis constraints on sterile neutrino and lepton asymmetry of the Universe
• Limits from BBN on Light Electromagnetic Decays
• Primordial helium abundance determination using sulphur as metallicity tracer
• Search for heavy neutral leptons decaying into muon-pion pairs in the MicroBooNE detector
• Probing heavy neutrino oscillations in rare W boson decays
• Heavy sterile neutrino emission in core-collapse supernovae: Constraints and signatures
• The primordial deuterium abundance at z = 2.504 from a high signal-to-noise spectrum of Q1009+2956
• Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Revision of the LHCb Limit on Majorana Neutrinos
• Electric Dipole Moments of Charged Leptons with Sterile Fermions
• Inert-Sterile Neutrino: Cold or Warm Dark Matter Candidate
• A little theory of everything, with heavy neutral leptons
• Precision Rates for Nucleon Weak Interactions in Primordial Nucleosynthesis and He-4 Abundance
• Heavy Neutral Leptons from kaon decays in the SHiP experiment
• Sterile neutrino dark matter via GeV-scale leptogenesis?
• Revisiting Minimal Lepton Flavour Violation in the Light of Leptonic CP Violation
• Setup commissioning for an improved measurement of the D(p,gamma)3He cross section at Big Bang Nucleosynthesis energies
• Dirac vs. Majorana HNLs (and their oscillations) at SHiP
• Minimal lepton flavor violating realizations of minimal seesaw models
• Incomplete neutrino decoupling effect on big bang nucleosynthesis
• MeV-scale reheating temperature and cosmological production of light sterile neutrinos
• Sensitivity of the intensity frontier experiments for neutrino and scalar portals: analytic estimates
• New Long Lived Particles Searches in Heavy Ion Collisions at the LHC
• Probing new physics with displaced vertices: muon tracker at CMS
• Electron electric dipole moment in Inverse Seesaw models
• Exploring CP-Violating heavy neutrino oscillations in rare tau decays at Belle II
• Weak Interaction Rate Coulomb Corrections in Big Bang Nucleosynthesis
• Production of unstable heavy neutrinos in proto-neutron stars

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• Feebly-Interacting Particles:FIPs 2020 Workshop Report
• The Present and Future Status of Heavy Neutral Leptons
• Improved BBN constraints on Heavy Neutral Leptons
• GeV-scale neutrinos: interactions with mesons and DUNE sensitivity
• Long-lived Sterile Neutrinos at the LHC in Effective Field Theory
• Uniting low-scale leptogeneses
• Mapping the viable parameter space for testable leptogenesis
• Effective portals to heavy neutral leptons
• Constraints from the CHARM experiment on Heavy Neutral Leptons with tau mixing
• Blast from the past II: Constraints on heavy neutral leptons from the BEBC WA66 beam dump experiment
• Dark Scalars and Heavy Neutral Leptons at DarkQuest
• Heavy neutral leptons in effective field theory and the high-luminosity LHC
• Heavy neutral leptons below the kaon mass at hodoscopic detectors
• An allowed window for heavy neutral leptons below the kaon mass
• Cosmic Neutrino Background Detection in Large-Neutrino-Mass Cosmologies
• Comprehensive constraints on heavy sterile neutrinos from core-collapse supernovae
• Probing right-handed neutrinos dipole operators
• 511 keV line constraints on feebly interacting particles from supernovae
• Massive sterile neutrinos in the early universe: From thermal decoupling to cosmological constraints
• Possible Hints of Sterile Neutrinos in Recent Measurements of the Hubble Parameter
• HECATE: A long lived particle detector concept for the FCC-ee or CEPC
• MeV-scale Seesaw and Leptogenesis
• Neutrino Portals, Terrestrial Upscattering, and Atmospheric Neutrinos
• When FIMPs Decay into Neutrinos: The $N_{\mathrm{eff}}$ Story
• Long-lived neutral fermions at the DUNE near detector
• Luminous solar neutrinos II: Mass-mixing portals
• Light Sterile Neutrinos, Left-Right Symmetry, and $0\nu \beta \beta$ Decay
• LHCb potential to discover long-lived new physics particles with lifetimes above 100 ps
• Exploring the potential of FCC-hh to search for particles from $B$ mesons
• Neutrinoless Double Beta Decay via Light Neutralinos in R-Parity Violating Supersymmetry
• New Physics Search at the CEPC: a General Perspective
• Primordial neutrinos and new physics: novel approach to solving neutrino Boltzmann equation
• Heavy Neutral Leptons -- Advancing into the PeV domain
• Effects of an Intermediate Mass Sterile Neutrino Population on the Early Universe
• Light sterile neutrinos and lepton-number-violating kaon decays in effective field theory
• Low-Energy Supernovae Bounds on Sterile Neutrinos
• How new physics affects primordial neutrinos decoupling: Direct Simulation Monte Carlo approach
• New physics decaying into metastable particles: impact on cosmic neutrinos
• Low-Scale Leptogenesis with Low-Energy Dirac CP-Violation
• Low-scale Resonant Leptogenesis in $SU(5)$ GUT with ${\mathcal{T}}_{13}$ Family Symmetry
• Dynamics of metastable Standard Model particles from long-lived particle decays in the MeV primordial plasma
• Low-scale leptogenesis with flavour and CP symmetries
• Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the $\nu$MSM
• In-flight positron annihilation as a probe of feebly interacting particles
• Heavy Neutral Leptons at Beam Dump Experiments of Future Lepton Colliders
• Confronting the low-scale seesaw and leptogenesis with neutrinoless double beta decay
• On the collider-testability of the type-I seesaw model with 3 right-handed neutrinos
• Long-Lived Particles and the Quiet Sun
• Primordial Black Holes Evaporating before Big Bang Nucleosynthesis
• Impostor Among $\nu$s: Dark Radiation Masquerading as Self-Interacting Neutrinos
• Detecting LHC Neutrinos at Surface Level
• Discovering the Origin of Neutrino Masses at SHiP
• Relaxing Limits from Big Bang Nucleosynthesis on Heavy Neutral Leptons with Axion-like Particles
• Prospects for Heavy Neutral Lepton Searches at Short and Medium Baseline Reactor Experiments
• No Hiding in the Dark: Cosmological Bounds on Heavy Neutral Leptons with Dark Decay Channels
• Mass Reconstruction of Heavy Neutral Leptons from Stopped Mesons
• Sterile neutrino rates for general $M$, $T$, $\mu$, $k$: review of a theoretical framework
• Precision calculation of $N_{\text{eff}}$ with Neutrino Direct Simulation Monte Carlo
• Right handed neutrino production from $Z^{\prime }$ interactions in forward search experiments
• Modular-symmetry-protected seesaw
• Probing Solar Heavy Neutrinos with Heliospheric Electrons
• Constraints on Heavy Neutral Leptons interacting with a singlet scalar
• The Forward Physics Facility at the High-Luminosity LHC
• New Physics Searches at Kaon and Hyperon Factories
• Cosmological constraints on heavy sterile neutrinos
• Cosmic Overture Echoed in a Stellar Final Act: Implications of Nanohertz Gravitational Waves for Core Collapse Supernova Neutrinos