A High Sensitivity Search for ${\bar{\nu }}_e$'s from the Sun and Other Sources at KamLAND

Abstract

Data corresponding to a KamLAND detector exposure of 0.28 kton-year has been used to search for ${\bar{\nu }}_e$'s in the energy range 8.3 MeV $<$ E${}_{{\bar{\nu }}_e}$ $<$ 14.8 MeV. No candidates were found for an expected background of $1.1\pm 0.4$ events. This result can be used to obtain a limit on ${\bar{\nu }}_e$ fluxes of any origin. Assuming that all ${\bar{\nu }}_e$ flux has its origin in the Sun and has the characteristic ${}^8$B solar ${\nu }_e$ energy spectrum, we obtain an upper limit of 3.7 \times 10${}^2$ cm${}^{-2}$ s${}^{-1}$ (90% C.L.) on the ${\bar{\nu }}_e$ flux. We interpret this limit, corresponding to $2.8\times 10^{-4}$ of the Standard Solar Model ${}^8$B ${\nu }_e$ flux, in the framework of spin--flavor precession and neutrino decay models.

5 pages, 2 figures. New version has changes in text for sake of clarity per PRL referee Comments

References in corpus (1)

• Limits on the neutrino magnetic moment from the MUNU experiment

Cited by in corpus (88)

• The $\nu$MSM, Dark Matter and Baryon Asymmetry of the Universe
• The $\nu$MSM, Dark Matter and Neutrino Masses
• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• Phenomenology with Massive Neutrinos
• Status of global fits to neutrino oscillations
• The New Minimal Standard Model
• Explosion Mechanism, Neutrino Burst, and Gravitational Wave in Core-Collapse Supernovae
• Results from a search for the $0\nu \beta \beta$-decay of ${}^{130}Te$
• Are solar neutrino oscillations robust?
• Relic neutrino background from cosmological supernovae
• Neutrino Decays over Cosmological Distances and the Implications for Neutrino Telescopes
• Neutrino electromagnetic properties
• Predicting the Cosmological Constant from the Causal Entropic Principle
• Small neutrino masses from gravitational $\theta$-term
• Solar neutrinos and neutrino physics
• Asymmetric Inelastic Inert Doublet Dark Matter from Triplet Scalar Leptogenesis
• Neutrino masses and CDM in a non-supersymmetric model
• Diffuse supernova neutrinos at underground laboratories
• Study of solar and other unknown anti-neutrino fluxes with Borexino at LNGS
• Three-generation flavor transitions and decays of supernova relic neutrinos
• Constraints on neutrino decay lifetime using long-baseline charged and neutral current data
• The Sudbury Neutrino Observatory
• Testing neutrino flavor mixing plus decay with neutrino telescopes
• Astrophysical neutrinos flavored with Beyond the Standard Model physics
• Constraining the neutrino magnetic moment with anti-neutrinos from the Sun
• Getting the best out of T2K and NOvA
• Testing neutrino decay scenarios with IceCube data
• Co-genesis of Matter and Dark Matter with Vector-like Fourth Generation Leptons
• The diffuse supernova neutrino flux, supernova rate and SN1987A
• Searching for dark matter sterile neutrino in laboratory
• Distinguishing Dirac and Majorana neutrinos by their gravi-majoron decays
• Detection potential for the diffuse supernova neutrino background in the large liquid-scintillator detector LENA
• Explanation for the low flux of high energy astrophysical muon-neutrinos
• Electron Antineutrino Search at the Sudbury Neutrino Observatory
• Neutrino Spectrum from SN 1987A and from Cosmic Supernovae
• Constraining the invisible neutrino decay with KM3NeT-ORCA
• Enhanced solar anti-neutrino flux in random magnetic fields
• Solar Neutrino Measurements
• Neutrino Flavor Goniometry by High Energy Astrophysical Beams
• Appearance of neutronization peak and decaying supernova neutrinos
• The physics of antineutrinos in DUNE and determination of octant and ${\delta }_{CP}$
• Leptogenesis and dark matter unified in a non-SUSY model for neutrino masses
• Does the neutrino magnetic moment have an impact on solar neutrino physics?
• Neutrinos from failed supernovae at future water and liquid argon detectors
• KamLAND neutrino spectra in energy and time: Indications for reactor power variations and constraints on the georeactor
• Physics with Reactor Neutrinos
• New Test of Supernova Electron Neutrino Emission using Sudbury Neutrino Observatory Sensitivity to the Diffuse Supernova Neutrino Background
• Nonthermal production of baryon and dark matter
• Effect of non-zero theta(13) on the measurement of theta(23)
• Search for heavy neutrino in $K^{+}\to {\mu }^{+}{\nu }_H$ decay
• Mini Z' Burst from Relic Supernova Neutrinos and Late Neutrino Masses
• Charge conjugation and Lense-Thirring Effect: A new Asymmetry
• Limits on CPT violation from solar neutrinos
• On Bayesian Treatment of Systematic Uncertainties in Confidence Interval Calculation
• LMA and sterile neutrinos: a case for resonance spin flavour precession?
• Low Energy Solar Neutrinos and Spin Flavour Precession
• Probing nonstandard lepton number violating interactions in neutrino oscillations
• Measuring the Cosmic Ray Muon-Induced Fast Neutron Spectrum by (n,p) Isotope Production Reactions in Underground Detectors
• Search for electron antineutrino interactions with the Borexino Counting Test Facility at Gran Sasso
• The Cosmic MeV Neutrino Background as a Laboratory for Black Hole Formation
• The Minimal GUT with Inflaton and Dark Matter Unification
• Affleck-Dine leptogenesis in the radiative neutrino mass model
• Dark world and baryon asymmetry from a common source
• Testing neutrino spectra formation in collapsing stars with the diffuse supernova neutrino flux
• Improving LMA predictions with non-standard interactions: neutrino decay in solar matter?
• What Happens If an Unbroken Flavor Symmetry Exists?
• Search for modulations of the solar Be-7 flux in the next-generation neutrino observatory LENA
• Neutrino Magnetic Moments: Status and Prospects
• Hidden MeV-Scale Dark Matter in Neutrino Detectors
• Perturbative Bottom-up Approach for Neutrino Mass Matrix in Light of Large θ_{13} and Role of Lightest Neutrino Mass
• Enhanced tau neutrino appearance through invisible decay
• SNO, SuperKamiokande data, antineutrinos and sterile neutrinos
• New interactions: past and future experiments
• Random magnetic fields inducing solar neutrino spin-flavor precession in a three generation context
• New Physics from NSIs in charm Decays
• Neutrino Properties from High Energy Astrophysical Neutrinos
• Mimicking diffuse supernova antineutrinos with the Sun as a source
• Measurement on the thermal neutron capture cross section of w-180
• Neutrino texture saturating the CP asymmetry
• New limits on neutrino magnetic moment through non-vanishing 13-mixing
• New Physics Through Rare Decays Of Mesons
• Neutrino spin-flavor oscillations in solar environment
• Online monitoring system and data management for KamLAND
• Model Independent Constraints on Non-electronic Flavors in the Solar Boron Neutrino Flux
• Neutrino Masses Induced by R-Parity Violation in a SUSY SU(5) Model with Additional \bar{5}'_L+5'_L
• Determining neutrino mass hierarchy from electron disappearance at a Low energy neutrino factory
• NSI can improve LMA predictions: neutrino decay in solar matter?
• Estimating JUNO's Sensitivity to Solar Neutrino-to-antineutrino Conversion and Neutrino Magnetic Moments