Search for electron antineutrino interactions with the Borexino Counting Test Facility at Gran Sasso

Abstract

Electron antineutrino interactions above the inverse beta decay energy of protons ($E_\barν_e>$1.8) where looked for with the Borexino Counting Test Facility (CTF). One candidate event survived after rejection of background, which included muon-induced neutrons and random coincidences. An upper limit on the solar ${\bar{\nu }}_e$ flux, assumed having the ${}^8$B solar neutrino energy spectrum, of 1.1$\times 10^5$ cm${}^{-2}$~s${}^{-1}$ (90% C.L.) was set with a 7.8 ton $\times$ year exposure. This upper limit corresponds to a solar neutrino transition probability, ${\nu }_e\to {\bar{\nu }}_e$, of 0.02 (90% C.L.). Predictions for antineutrino detection with Borexino, including geoneutrinos, are discussed on the basis of background measurements performed with the CTF.

arXiv comment10 pages, 9 figures, 5 tables

References in corpus (26)

• Measurement of Neutrino Oscillation with KamLAND: Evidence of Spectral Distortion
• What do we (not) know theoretically about solar neutrino fluxes?
• Science and Technology of BOREXINO: A Real Time Detector for Low Energy Solar Neutrinos SOLAR NEUTRINOS
• Do solar neutrinos decay?
• A High Sensitivity Search for ${\bar{\nu }}_e$'s from the Sun and Other Sources at KamLAND
• Neutron Flux at the Gran Sasso Underground LaboratoryRevisited
• Antineutrinos from Earth: A reference model and its uncertainties
• Predicting Neutron Production from Cosmic-ray Muons
• Antineutrino Geophysics with Liquid Scintillator Detectors
• Precision spectroscopy with reactor anti-neutrinos
• Constraining the neutrino magnetic moment with anti-neutrinos from the Sun
• Search for anti-electron-neutrinos from the Sun at Super-Kamiokande-I
• New limits on nucleon decays into invisible channels with the BOREXINO Counting Test Facility
• New experimental limits on violations of the Pauli exclusion principle obtained with the Borexino Counting Test Facility
• Electron Antineutrino Search at the Sudbury Neutrino Observatory
• Enhanced solar anti-neutrino flux in random magnetic fields
• Does the neutrino magnetic moment have an impact on solar neutrino physics?
• Geo-neutrinos: a new probe of Earth's interior
• Measurement of the energy spectrum of underground muons at Gran Sasso with a transition radiation detector
• Neutrinos and Energetics of the Earth
• Bounds on neutrino magnetic moment tensor from solar neutrinos
• KamLAND, solar antineutrinos and the solar magnetic field
• A new solution to the solar neutrino deficit
• Testing the LMA solution with solar neutrinos independently of solar models
• Discriminating among Earth composition models using geo-antineutrinos
• Implications of SNO and BOREXINO results on Nuetrino Oscillations and Majorana Magnetic Moments

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• Final results of Borexino Phase-I on low energy solar neutrino spectroscopy
• Observation of Geo-Neutrinos
• Study of solar and other unknown anti-neutrino fluxes with Borexino at LNGS
• Particle production and chemical freezeout from the hybrid UrQMD approach at NICA energies
• Realistic Earth matter effects and a method to acquire information about small θ_{13} in the detection of supernova neutrinos
• Hidden MeV-Scale Dark Matter in Neutrino Detectors
• Acquire information about neutrino parameters by detecting supernova neutrinos
• Estimating JUNO's Sensitivity to Solar Neutrino-to-antineutrino Conversion and Neutrino Magnetic Moments