VSBL Electron Neutrino Disappearance

Carlo Giunti; Marco Laveder

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VSBL Electron Neutrino Disappearance

Carlo Giunti, Marco Laveder

High Energy Physics - Phenomenology · Submitted 11 Feb 2009

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Considering the first possibility, we present the results of a combined fit of all data, which indicate that P_{ee} < 1 with 97.04 CL.

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What the abstract itself states, as probabilities: claims first 0.02 · states limitation 0.77 · human participants 0.03 · controlled comparison 0.27 · randomized assignment 0.01 · states quantitative result 0.98 · compares with prior results 0.64 · mentions code or data availability 0.02.

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We consider possible indications of Very-Short-BaseLine (VSBL) electron neutrino disappearance into sterile neutrinos in MiniBooNE neutrino data and Gallium radioactive source experiments. We discuss the compatibility of such a disappearance with reactor and MiniBooNE antineutrino data. We find a tension between neutrino and antineutrino data which could be due to: 1) statistical fluctuations; 2) underestimate of systematic uncertainties; 3) exclusion of our hypothesis of VSBL nu_e disappearance; 4) a violation of CPT symmetry. Considering the first possibility, we present the results of a combined fit of all data, which indicate that P_{ee} < 1 with 97.04 CL. We consider also the possibility of CPT violation, which leads to the best-fit value A_{ee}^{CPT,bf} = -0.17 for the asymmetry of the nu_e and antinu_e survival probabilities and A_{ee}^{CPT} < 0 at 99.7 CL.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We consider possible indications of Very-Short-BaseLine (VSBL) electron neutrino disappearance into sterile neutrinos in MiniBooNE neutrino data and Gallium radioactive source experiments.	contribution 0.94	0.36	0.05	hedged possibility 0.94
s1	We discuss the compatibility of such a disappearance with reactor and MiniBooNE antineutrino data.	contribution 0.91	0.59	0.03	unclear 0.79
s2	We find a tension between neutrino and antineutrino data which could be due to: 1) statistical fluctuations; 2) underestimate of systematic uncertainties; 3) exclusion of our hypothesis of VSBL nu_e disappearance; 4) a violation of CPT symmetry.	interpretation 0.58	0.94	0.30	hedged possibility 0.52
s3	Considering the first possibility, we present the results of a combined fit of all data, which indicate that P_{ee} < 1 with 97.04 CL.	result 0.99	0.94	0.37	hedged possibility 0.58
s4	We consider also the possibility of CPT violation, which leads to the best-fit value A_{ee}^{CPT,bf} = -0.17 for the asymmetry of the nu_e and antinu_e survival probabilities and A_{ee}^{CPT} < 0 at 99.7 CL.	result 1.00	0.92	0.21	asserted 0.59

What kind of paper the classifier reports this is: empirical study 0.52 · evidence from analysis of existing data 1.00.

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The paper

Original abstract

We consider possible indications of Very-Short-BaseLine (VSBL) electron neutrino disappearance into sterile neutrinos in MiniBooNE neutrino data and Gallium radioactive source experiments. We discuss the compatibility of such a disappearance with reactor and MiniBooNE antineutrino data. We find a tension between neutrino and antineutrino data which could be due to: 1) statistical fluctuations; 2) underestimate of systematic uncertainties; 3) exclusion of our hypothesis of VSBL nu_e disappearance; 4) a violation of CPT symmetry. Considering the first possibility, we present the results of a combined fit of all data, which indicate that P_{ee} < 1 with 97.04 CL. We consider also the possibility of CPT violation, which leads to the best-fit value A_{ee}^{CPT,bf} = -0.17 for the asymmetry of the nu_e and antinu_e survival probabilities and A_{ee}^{CPT} < 0 at 99.7 CL.

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References

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Implications of 3+1 Short-Baseline Neutrino Oscillations
hep-ph 2011-11 conditional novelty 4.0 of 10

Adding KARMEN and LSND neutrino-carbon scattering to a 3+1 sterile-neutrino global fit lowers the preferred mass splitting to about 1 eV and yields beta-decay and double-beta mass ranges of 0.1-0.7 eV and 0.01-0.1 eV.
Status of 3+1 Neutrino Mixing
hep-ph 2011-09 conditional novelty 4.0 of 10

Adding updated MiniBooNE antineutrino and new MINOS neutral-current data to a global 3+1 sterile-neutrino fit yields a best point near 5.6 eV squared, with appearance and disappearance data only marginally compatible ...
3+1 and 3+2 Sterile Neutrino Fits
hep-ph 2011-07 conditional novelty 4.0 of 10

Global fits of short-baseline neutrino data favor eV-scale sterile neutrinos but fail a parameter goodness-of-fit test at the 10^-6 to 10^-4 level.
Statistical Significance of the Gallium Anomaly
hep-ph 2010-06 conditional novelty 4.0 of 10

Accounting for the uncertainty in the neutrino detection cross section, the Gallium radioactive-source deficit stands at about 3.0 sigma, and a short-baseline oscillation fit is favored over no oscillations at about 2...
Light sterile neutrinos
hep-ph 2015-07 conditional novelty 3.0 of 10

A review of eV-scale sterile neutrinos argues that reactor, Gallium, and LSND anomalies can be fit by 3+1 short-baseline oscillations, while acknowledging appearance-disappearance and cosmological tensions.

How the literature uses it

18 arXiv papers cite this in 40 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 28 sentences without a confident label

Uses its data or values 3 papers

* The data of Gallium radioactive source experiments (GALLEX [ref] and SAGE [ref] ) which indicate a $ν_e$ disappearance (the Gallium neutrino anomaly [ref] ).

Implications of 3+1 Short-Baseline Neutrino Oscillations · Introduction · 0.93
Moreover, since $| sin4 θ| ≤1$ and $θ≤π/2$, also $|a_CPT|$ has a lower limit, which is plotted in Fig. [ref] for $A_ee^CPT < - 0.08$, which is the 95% C.L. limit found in [ref] .

Short-Baseline Electron Neutrino Disappearance at a Neutrino Factory · CPT violation · 0.88
We present global analyses of all these data without and with the data of Gallium radioactive source experiments (GALLEX [ref] and SAGE [ref] ) which indicate a $ν_e$ disappearance (the Gallium neutrino anomaly [ref] ).

Status of 3+1 Neutrino Mixing · Global 3+1 Fits · 0.96

Cites it as support 2 papers

The MiniBooNE result open the interesting possibility [ref] of consider a tiny CPT violation in order to explain, in one hand the absence of oscillation in the antineutrino mode and, on the other hand, the $Δm^2_MB∼$ $eV^2$ which is in contradiction with solar neutrino reports.

Neutrino Oscillations in a Minimal CPT Violation Frame · Introduction · 0.98
The explanation of the Gallium radioactive source experiments anomaly and the MiniBooNE low-energy anomaly through active-sterile neutrino oscillations requires the disappearance of electron neutrinos into sterile states [ref] .

Matter Effects in Active-Sterile Solar Neutrino Oscillations · Introduction · 0.96

Cites it as background 4 papers

The GALLEX and SAGE radioactive source experiments revealed a disappearance of electron neutrinos with energy $E$ of the order of 1 MeV at a distance $L$ of the order of 1 m which could be due to short-baseline oscillations [ref] .

Short-BaseLine Electron Neutrino Disappearance · Introduction · 0.82
Here we consider the electron neutrino disappearance explanation of the Gallium radioactive source experiments anomaly [ref] (another interesting explanation through quantum decoherence in neutrino oscillations has been proposed in Ref. [ref] ).

Short-Baseline Electron Neutrino Disappearance, Tritium Beta Decay and Neutrinoless Double-Beta Decay · Gallium Radioactive Source Experiments · 0.84
In the following, we consider the possibility of electron neutrino disappearance due to short-baseline oscillations [ref] (another explanation based on quantum decoherence in neutrino oscillations has been proposed in Ref. [ref] ).

Statistical Significance of the Gallium Anomaly · Introduction · 0.82

What it cites · 72 sentences without a confident label

Builds on 2 papers

In this paper we update the analysis presented in Ref. [ref] of MiniBooNE neutrino events by considering the new data in Ref. [ref] (Section [ref]).

nu_e Disappearance in MiniBooNE · Introduction · 0.80
In this paper we update the analysis presented in Ref. [ref] of MiniBooNE neutrino events by considering the new data in Ref. [ref] (Section [ref]).

Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam · Introduction · 0.80

Uses the method or tool of 1 paper

The parameter goodness-of-fit [ref] of 12.4% implies that the results of the MiniBooNE neutrino and the Gallium radioactive source experiments are compatible in the framework of the VSBL $ν_e$ disappearance hypothesis.

Testing the statistical compatibility of independent data sets · Gallium Radioactive Source Experiments · 0.96

Uses data or values from 6 papers

We consider the MiniBooNE $ν_e$-like events from Ref. [ref] , which are listed in Tab. [ref].

Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam · MiniBooNE Neutrino Data · 1.00
In this Section we discuss the results of a combined fit of the MiniBooNE neutrino data considered in the previous Section with the result in Eq. ([ref]) for the ratio of measured and predicted $^71Ge$ production rates in the Gallium radioactive source experiments [ref] .

Measurement of the response of a gallium metal solar neutrino experiment to neutrinos from a 51Cr source · Gallium Radioactive Source Experiments · 0.95
In this Section we discuss the results of a combined fit of the MiniBooNE neutrino data considered in the previous Section with the result in Eq. ([ref]) for the ratio of measured and predicted $^71Ge$ production rates in the Gallium radioactive source experiments [ref] .

Measurement of the solar neutrino capture rate with gallium metal. III: Results for the 2002--2007 data-taking period · Gallium Radioactive Source Experiments · 0.95

Compares with 3 papers

The indication in favor of VSBL $ν_e$ disappearance that we have obtained from the data of the MiniBooNE neutrino experiment and the Gallium radioactive source experiments must be confronted with the lack of any evidence of VSBL $ν̅_e$ disappearance in reactor experiments[ The compatibility of MiniBooNE neutrino data with the weak indication of $ν̅_e$ disappearance due $Δm^2 ≃2 eV^2$ found in Ref. [ref] from the analysis of the Bugey reactor neutrino data [ref] will be discussed elsewhere [ref] . ], since $P_ν_e→ν_e=P_ν̅_e→ν̅_e$ in the framework of local CPT-invariant Quantum Field Theory (see Ref. [ref] ).

Limits on nu_e and anti-nu_e disappearance from Gallium and reactor experiments · Reactor Neutrino Experiments · 0.80
There is a tension between this result and the absence of any indication of $ν̅_e$ disappearance in reactor neutrino data [ref] which could be due to statistical fluctuations, or to an underestimation of systematic uncertainties, or to the inexistence of VSBL $ν_e$ disappearance, or to a violation of the CPT equality $P_ν_e→ν_e = P_ν̅_e→ν̅_e$.

Search for neutrino oscillations on a long base-line at the CHOOZ nuclear power station · Conclusions · 0.87
The new analysis confirms the absence of a signal in the $475-3000$ MeV energy range due to $ν_μ→ν_e$ oscillations with a $Δm^2$ compatible with the indication of $ν̅_μ→ν̅_e$ oscillations found in the LSND experiment [ref] .

Evidence for Neutrino Oscillations from the Observation of Electron Anti-neutrinos in a Muon Anti-Neutrino Beam · Introduction · 0.88

Cites as background 3 papers

Beta-beam experiments [ref] with pure $ν_e$ or $ν̅_e$ beams from nuclear decay (see the reviews in Refs. [ref] ) could investigate the disappearance of electron neutrinos and antineutrinos, testing the CPT symmetry.

Beam Cooling with ionisation losses · Conclusions · 0.81
Beta-beam experiments [ref] with pure $ν_e$ or $ν̅_e$ beams from nuclear decay (see the reviews in Refs. [ref] ) could investigate the disappearance of electron neutrinos and antineutrinos, testing the CPT symmetry.

Topical Review on "Beta-beams" · Conclusions · 0.81
Beta-beam experiments [ref] with pure $ν_e$ or $ν̅_e$ beams from nuclear decay (see the reviews in Refs. [ref] ) could investigate the disappearance of electron neutrinos and antineutrinos, testing the CPT symmetry.

The Neutrino Factory and Beta Beam Experiments and Development · Conclusions · 0.81

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