The Short-Baseline Neutrino Program at Fermilab

Machado, Pedro A. N.; Palamara, O.; Schmitz, D.

doi:10.1146/annurev-nucl-101917-020949

Cited by 170 publications

(148 citation statements)

References 147 publications

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“…The Short Baseline Neutrino Program (SBN) [170,171] is a three-detector setup aiming to search for light sterile neutrinos causing ν e appearance and ν µ disappearance in a muon neutrino beam, and in particular to probe the result of the MiniBooNE experiment (see Sec. 3.3.2).…”

Section: Short Baseline Neutrino Program At Fermilabmentioning

confidence: 99%

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Status of light sterile neutrino searches

Böser

Buck

Giunti

et al. 2020

Progress in Particle and Nuclear Physics

209

195

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A number of anomalous results in short-baseline oscillation may hint at the existence of one or more light sterile neutrino states in the eV mass range and have triggered a wave of new experimental efforts to search for a definite signature of oscillations between active and sterile neutrino states. The present paper aims to provide a comprehensive review on the status of light sterile neutrino searches in mid-2019: we discuss not only the basic experimental approaches and sensitivities of reactor, source, atmospheric, and accelerator neutrino oscillation experiments but also the complementary bounds arising from direct neutrino mass experiments and cosmological observations. Moreover, we review current results from global oscillation analyses that include the constraints set by running reactor and atmospheric neutrino experiments. They permit to set tighter bounds on the active-sterile oscillation parameters but as yet are not able to provide a definite conclusion on the existence of eV-scale sterile neutrinos.

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Section: Short Baseline Neutrino Program At Fermilabmentioning

confidence: 99%

“…30). [171]. The solid red line corresponds to a 3σ, the dashed red line to a 5σ sensitivity to a light sterile neutrino.…”

Section: Icarus Sbndmentioning

confidence: 99%

Status of light sterile neutrino searches

Böser

Buck

Giunti

et al. 2020

Progress in Particle and Nuclear Physics

209

195

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“…The Fermilab short-baseline neutrino program: The short-baseline neutrino (SBN) program at Fermilab consists of three liquid argon detectors in the booster neutrino beam line: SBND, MicroBooNE, and Icarus [48,49], with the MicroBooNE detector already running and producing results. A sensitivity study to heavy neutrino decays, including the photon decay mode has been performed in [8], see also [50].…”

Section: Istra+mentioning

confidence: 99%

“…Liquid argon detectors will be very suitable to search for the signal predicted here, since such detectors can discriminate photons from electrons. The main characteristics of the three detectors are summarized in Table 2: Benchmark characteristics of the three SBN detectors [48,49] compared to MiniBooNE. We assume the same POT as quoted in [8].…”

Section: Istra+mentioning

confidence: 99%

Explaining the MiniBooNE excess by a decaying sterile neutrino with mass in the 250 MeV range

2020

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The MiniBooNE collaboration has reported an excess of 460.5 ± 95.8 electron-like events (4.8σ). We propose an explanation of these events in terms of a sterile neutrino decaying into a photon and a light neutrino. The sterile neutrino has a mass around 250 MeV and it is produced from kaon decays in the proton beam target via mixing with the muon or the electron in the range 10 −11 |U 4 | 2 10 −7 ( = e, µ). The model can be tested by considering the time distribution of the events in MiniBooNE and by looking for single-photon events in running or upcoming neutrino experiments, in particular by the suite of liquid argon detectors in the short-baseline neutrino program at Fermilab.

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“…The Short-Baseline Neutrino program at Fermilab utilizes three liquid argon time projection chamber detectors -SBND [5], MicroBooNE [6], and ICARUS [7] -situated along the Booster Neutrino Beam (BNB) [8]. While the primary physics goals of the SBN program include searches for eV-scale sterile neutrinos (motivated by the LSND [9] and Mini-BooNE [10][11][12] anomalies) and measurements of neutrino-nucleus scattering cross sections, these experiments are also expected to have significant sensitivity to hidden sector particles in the MeV-GeV range.…”

Section: Introductionmentioning

confidence: 99%

Probing the Higgs portal at the Fermilab short-baseline neutrino experiments

2019

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The Fermilab Short-Baseline Neutrino (SBN) experiments, MicroBooNE, ICARUS, and SBND, are expected to have significant sensitivity to light weakly coupled hidden sector particles. Here we study the capability of the SBN experiments to probe dark scalars interacting through the Higgs portal. We investigate production of dark scalars using both the Fermilab Booster 8 GeV and NuMI 120 GeV proton beams, simulating kaons decaying to dark scalars and taking into account the beamline geometry. We also investigate strategies to mitigate backgrounds from beam-related neutrino scattering events. We find that SBND, with its comparatively short O(100 m) baseline, will have the best sensitivity to scalars produced with Booster, while ICARUS, with its large detector volume, will provide the best limits on off-axis dark scalar production from NuMI. The SBN experiments can provide leading tests of dark scalars with masses in the 50 -350 MeV range in the near term. Our results motivate dedicated experimental searches for dark scalars and other long-lived hidden sector states at these experiments. *

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The Short-Baseline Neutrino Program at Fermilab

Cited by 170 publications

References 147 publications

Status of light sterile neutrino searches

Status of light sterile neutrino searches

Explaining the MiniBooNE excess by a decaying sterile neutrino with mass in the 250 MeV range

Probing the Higgs portal at the Fermilab short-baseline neutrino experiments

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