Neutrino Mass and Dark Matter in light of recent AMS-02 results

Abstract

We study a simple extension of the Standard Model supplemented by an electroweak triplet scalar field to accommodate small neutrino masses by the type-II seesaw mechanism, while an additional singlet scalar field can play the role of cold dark matter (DM) in our Universe. This DM candidate is leptophilic for a wide range of model parameter space, and the lepton flux due to its annihilation carries information about the neutrino mass hierarchy. Using the recently released high precision data on positron fraction and flux from the AMS-02 experiment, we examine the DM interpretation of the observed positron excess in our model for two kinematically distinct scenarios with the DM and triplet scalar masses (a) non-degenerate ($m_{\mathrm{DM}}\gg m_{\Delta }$), and (b) quasi-degenerate ($m_{\mathrm{DM}}\simeq m_{\Delta }$). We find that a good fit to the AMS-02 data can be obtained in both cases (a) and (b) with a normal hierarchy of neutrino masses, while the inverted hierarchy case is somewhat disfavored. Although we require a larger boost factor for the normal hierarchy case, this is still consistent with the current upper limits derived from Fermi-LAT and IceCube data for case (a). Moreover, the absence of an excess anti-proton flux as suggested by PAMELA data sets an indirect upper limit on the DM-nucleon spin-independent elastic scattering cross section which is stronger than the existing DM direct detection bound from LUX in the AMS-02 preferred DM mass range.

19 pages, 7 figures, 3 tables; version accepted for publication in Phys. Rev. D

References in corpus (52)

• Observation of an anomalous positron abundance in the cosmic radiation
• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Gauge Singlet Scalars as Cold Dark Matter
• Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
• micrOMEGAs3.1 : a program for calculating dark matter observables
• Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
• Global status of neutrino oscillation parameters after Neutrino-2012
• A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation
• Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC
• CMB Constraints on WIMP Annihilation: Energy Absorption During the Recombination Epoch
• Dark Matter Constraints from Observations of 25 Milky Way Satellite Galaxies with the Fermi Large Area Telescope
• Big Bang Nucleosynthesis Constraints on Hadronically and Electromagnetically Decaying Relic Neutral Particles
• Distinguishing seesaw models at LHC with multi-lepton signals
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Indirect search for dark matter with micrOMEGAs2.4
• The cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV
• Neutrino Masses and the LHC: Testing Type II Seesaw
• Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01
• Neutralino with the Right Cold Dark Matter Abundance in (Almost) Any Supersymmetric Model
• The cosmic-ray positron energy spectrum measured by PAMELA
• Minimal Extension of the Standard Model Scalar Sector
• On possible interpretations of the high energy electron-positron spectrum measured by the Fermi Large Area Telescope
• New limits on dark matter annihilation from AMS cosmic ray positron data
• Gamma-ray and radio tests of the e+e- excess from DM annihilations
• Pulsars versus Dark Matter Interpretation of ATIC/PAMELA
• Updated CMB constraints on Dark Matter annihilation cross-sections
• A search for a doubly-charged Higgs boson in pp collisions at sqrt(s) = 7 TeV
• Probing the Pulsar Origin of the Anomalous Positron Fraction with AMS-02 and Atmospheric Cherenkov Telescopes
• Vacuum Stability, Perturbativity, EWPD and Higgs-to-diphoton rate in Type II Seesaw Models
• Constraints on Dark Matter annihilations from reionization and heating of the intergalactic gas
• Enhancement of Dark Matter Annihilation via Breit-Wigner Resonance
• Lepton Flavour Violating Decays tau to lll and mu to e gamma in the Higgs Triplet Model
• Probing Majorana Phases and Neutrino Mass Spectrum in the Higgs Triplet Model at the LHC
• Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
• Inhomogeneity in the Supernova Remnant Distribution as the Origin of the PAMELA Anomaly
• AMS02 results support the secondary origin of cosmic ray positrons
• Pulsar interpretation for the AMS-02 result
• Dark matter and collider signatures of the MSSM
• IceCube Search for Dark Matter Annihilation in nearby Galaxies and Galaxy Clusters
• Dark Matter CMB Constraints and Likelihoods for Poor Particle Physicists
• Supersymmetry, Nonthermal Dark Matter and Precision Cosmology
• Higgs Mass Bounds, Type II SeeSaw and LHC
• Dynamical Dark Matter and the Positron Excess in Light of AMS
• Interpretation of AMS-02 Results: Correlations among Dark Matter Signals
• Neutrino Masses and Higgs Vacuum Stability
• Discriminating the source of high-energy positrons with AMS-02
• ATIC and PAMELA Results on Cosmic e^\pm Excesses and Neutrino Masses
• Type II Seesaw and the PAMELA/ATIC Signals
• AMS-02 Positrons from Decaying Wino in the Pure Gravity Mediation Model
• Distinguishing Between Dark Matter and Pulsar Origins of the ATIC Electron Spectrum With Atmospheric Cherenkov Telescopes
• Constraining the co-genesis of Visible and Dark Matter with AMS-02 and Xenon-100
• The cosmic-ray positron excess from a local Dark Matter over-density

Cited by in corpus (50)

• Interpretation of AMS-02 electrons and positrons data
• Dark matter vs. astrophysics in the interpretation of AMS-02 electron and positron data
• Constraining Non-thermal and Thermal properties of Dark Matter
• Unveiling Hidden Physics at the LHC
• Dark matter for excess of AMS-02 positrons and antiprotons
• Model-independent analysis of the DAMPE excess
• Scalar dark matter, Type II Seesaw and the DAMPE cosmic ray $e^{+}+e^{-}$ excess
• Model-independent Astrophysical Constraints on Leptophilic Dark Matter in the Framework of Tsallis Statistics
• Indirect and direct signatures of Higgs portal decaying vector dark matter for positron excess in cosmic rays
• Supersymmetric Custodial Triplets
• Leptophilic dark matter in gauged $U(1{)}_{L_e-L_{\mu }}$ model in light of DAMPE cosmic ray $e^{+}+e^{-}$ excess
• Fermi-LAT kills dark matter interpretations of AMS-02 data. Or not?
• Explaining the DAMPE $e^{+}{e}^{-}$ excess using the Higgs triplet model with a vector dark matter
• Prospects of type-II seesaw at future colliders in light of the DAMPE $e^{+}{e}^{-}$ excess
• Bayesian analysis of the break in DAMPE lepton spectra
• Leptophilic fermion WIMP ~ Role of future lepton colliders
• Scalar Dark Matter with Type II Seesaw
• Features in the Spectrum of Cosmic-Ray Positrons from Pulsars
• Revisiting Multi-Component Dark Matter with New AMS-02 Data
• Fermi/LAT observations of Dwarf Galaxies highly constrain a Dark Matter Interpretation of Excess Positrons seen in AMS-02, HEAT, and PAMELA
• AMS-02 Positron Excess and Indirect Detection of Three-body Decaying Dark Matter
• A dark matter model that reconciles tensions between the cosmic-ray $e^{\pm }$ excess and the gamma-ray and CMB constraints
• Limits on the Dark Matter from AMS-02 antiproton and positron fraction data
• Cosmic ray $e^{+}{e}^{-}$ spectrum excess and peak feature observed by the DAMPE experiment from dark matter
• Leptophilic Dark Matter and AMS-02 Cosmic-ray Positron Flux
• Utilizing cosmic-ray positron and electron observations to probe the averaged properties of Milky Way pulsars
• EFT analysis of leptophilic dark matter at future electron-positron colliders in the mono-photon and mono-$Z$ channels
• Confronting the DAMPE Excess with the Scotogenic Type-II Seesaw Model
• Leptophilic-portal Dark Matter in the Light of AMS-02 positron excess
• New Physics Search at the CEPC: a General Perspective
• LHC signals of triplet scalars as dark matter portal: cut-based approach and improvement with gradient boosting and neural networks
• Type II Seesaw with scalar dark matter in light of AMS-02, DAMPE and Fermi-LAT
• Revisiting GeV-scale annihilating dark matter with the AMS-02 positron fraction
• Interpretation of the cosmic ray positron and electron excesses with an annihilating-decaying dark matter scenario
• The leptophilic dark matter in the Sun: the minimum testable mass
• Neutrinos from the Sun can discover dark matter-electron scattering
• Observing Signals of Spectral Features in the Cosmic-Ray Positrons and Electrons from Milky Way Pulsars
• Consistent explanation for the cosmic-ray positron excess in $p$-wave Breit-Wigner enhanced dark matter annihilation
• Distinguishing Neutrino Mass Hierarchies using Dark Matter Annihilation Signals at IceCube
• Dark matter annihilation into leptons through gravity portals
• Snowmass 2021 LoI: Determination of cosmic ray properties in the local interstellar medium with all-sky anisotropy observations
• Explaining Dark Matter and Neutrino Mass in the light of TYPE-II Seesaw Model
• Confronting cosmic ray electron and positron excesses with hybrid triplet Higgs portal dark matter
• Possible counterpart signal of the Fermi bubbles at the cosmic-ray positrons
• Multicomponent Dark Matter in the Light of CALET and DAMPE
• Scalar dark matter with $Z_3$ symmetry in Type-II Seesaw
• Two-photon exchange in leptophilic dark matter scenarios
• Leptophilic Dark Matter at Linear Colliders
• Investigating two-zero texture in the light of gauged Type-II seesaw
• Renormalization Group Running of the Minimal Leptophilic Dark Matter Model toward a UV Completion