How to observe 8B solar neutrinos in liquid scintillator detectors

Ianni, Aldo; Montanino, D.; Villante, F. L.

doi:10.1016/j.physletb.2005.08.122

Cited by 22 publications

(16 citation statements)

References 34 publications

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“…Hence, 13 C events will be selected by the spatial and timing coincidence between prompt and delayed signals. Although the cross section is about 10 times larger than the cross section of the ES channel [14], the event rate is almost two orders of magnitude lower due to the low isotopic abundance of 13 C (1.07%). Nevertheless, the measurement of the unconvoluted shape of the solar 8 B neutrino spectrum 1 with the 13 C channel allows an energy dependent measurement of P ee , as the unoscillated solar 8 B flux is known from the NC measurements of the SNO experiment [22].…”

Section: Charged Current Reaction On 13 Cmentioning

confidence: 86%

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Detecting the upturn of the solar 8 B neutrino spectrum with LENA

Möllenberg¹,

Feilitzsch²,

Hellgartner³

et al. 2014

Physics Letters B

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LENA (Low Energy Neutrino Astronomy) has been proposed as a next generation 50 kt liquid scintillator detector. The large target mass allows a high precision measurement of the solar 8 B neutrino spectrum, with an unprecedented energy threshold of 2 MeV. Hence, it can probe the MSW-LMA prediction for the electron neutrino survival probability in the transition region between vacuum and matter-dominated neutrino oscillations. Based on Monte Carlo simulations of the solar neutrino and the corresponding background spectra, it was found that the predicted upturn of the solar 8 B neutrino spectrum can be detected with 5σ significance after 5 years.

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Section: Charged Current Reaction On 13 Cmentioning

confidence: 86%

“…The elastic neutrino electron scattering (ES) channel and charged current reactions of ν e 's on 13 C ( 13 C channel) [13,14].…”

Section: Simulation Of the Solar Neutrino Spectramentioning

confidence: 99%

Detecting the upturn of the solar 8 B neutrino spectrum with LENA

Möllenberg¹,

Feilitzsch²,

Hellgartner³

et al. 2014

Physics Letters B

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“…[201,202] as well as expectation values for the respective energy windows (EW) for observation [9,205,206]. The quoted fiducial masses (m fid ) in LAB are based on a Monte Carlo simulation of the external γ-ray background in LENA [207].…”

Section: Lena Observables and Capabilitiesmentioning

confidence: 99%

The next-generation liquid-scintillator neutrino observatory LENA

Wurm

Beacom

Bezrukov

et al. 2012

Astroparticle Physics

212

200

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2As part of the European LAGUNA design study on a next-generation neutrino detector, we propose the liquid-scintillator detector LENA (Low Energy Neutrino Astronomy) as a multipurpose neutrino observatory. The outstanding successes of the Borexino and KamLAND experiments demonstrate the large potential of liquid-scintillator detectors in low-energy neutrino physics. Low energy threshold, good energy resolution and efficient background discrimination are inherent to the liquidscintillator technique. A target mass of 50 kt will offer a substantial increase in detection sensitivity.At low energies, the variety of detection channels available in liquid scintillator will allow for an energy-and flavor-resolved analysis of the neutrino burst emitted by a galactic Supernova. Due to target mass and background conditions, LENA will also be sensitive to the faint signal of the Diffuse Supernova Neutrino Background. Solar metallicity, time-variation in the solar neutrino flux and deviations from MSW-LMA survival probabilities can be investigated based on unprecedented statistics. Low background conditions allow to search for dark matter by observing rare annihilation neutrinos. The large number of events expected for geoneutrinos will give valuable information on the abundances of Uranium and Thorium and their relative ratio in the Earth's crust and mantle. Reactor neutrinos enable a high-precision measurement of solar mixing parameters. A strong radioactive or pion decay-at-rest neutrino source can be placed close to the detector to investigate neutrino oscillations for short distances and sub-MeV to MeV energies.At high energies, LENA will provide a new lifetime limit for the SUSY-favored proton decay mode into kaon and antineutrino, surpassing current experimental limits by about one order of magnitude. Recent studies have demonstrated that a reconstruction of momentum and energy of GeV particles is well feasible in liquid scintillator. Monte Carlo studies on the reconstruction of the complex event topologies found for neutrino interactions at multi-GeV energies have shown promising results. If this is confirmed, LENA might serve as far detector in a long-baseline neutrino oscillation experiment currently investigated in LAGUNA-LBNO.3

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“…With a liquid scintillator, 13 C atoms naturally contained in it can be used as target for 8 B neutrinos [12] as the energy threshold is 2.2 MeV. Around 360 events of this type per year can be estimated for LENA.…”

Section: Detection Of Solar Neutrinosmentioning

confidence: 99%