Reevaluating reactor antineutrino spectra with new measurements of the ratio between 
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 and 
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Копейкин, В. И.; Skorokhvatov, M.; Titov, O.

doi:10.1103/physrevd.104.l071301

Cited by 62 publications

(31 citation statements)

References 20 publications

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“…It was suggested by Kopeikin et al, that this discrepancy is likely due to an overestimation of the absolute normalization of 235 U at ILL. Under this assumption, the re-evaluated flux (KI model) based on the modified normalization produces IBD yields that agree with reactor flux and evolution measurements within 1σ [17], reducing the significance of the original motivation for the RAA. Though is appears likely that a normalization error contributed to the original RAA, the KI model does not preclude sterile neutrinos from existing in this parameter space as shown in Fig.…”

Section: Recent Results Further Complicate the Short Baseline Os-cill...mentioning

confidence: 99%

Physics Opportunities with PROSPECT-II

Andriamirado¹,

Balantekin²,

D.³

et al. 2022

Preprint

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Section: Recent Results Further Complicate the Short Baseline Os-cill...mentioning

confidence: 99%

Physics Opportunities with PROSPECT-II

Andriamirado¹,

Balantekin²,

D.³

et al. 2022

Preprint

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“…The ν e → ν e has now been updated by the data collected by BEST [49], which strongly favors rather large mixing angle and masses larger than 1 eV 2 . Concerning the reactor anomalies, a recent reevaluation of the neutrino fluxes [50] has led to new global analyses [51,52] showing that combined reactor data are consistent with no sterile-neutrino oscillations. Despite the recent progress in all oscillation channels, new experimental data is still needed to fully assess the sterile neutrino option.…”

Section: A Active-sterile Neutrino Oscillationsmentioning

confidence: 99%

Neutrino Flavor Conversions in High-Density Astrophysical and Cosmological Environments

Capozzi,

Saviano

2022

Preprint

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Despite being a well understood phenomenon in the context of current terrestrial experiments, neutrino flavor conversions in dense astrophysical environments probably represent one of the most challenging open problems in neutrino physics. Apart from being theoretically interesting, such a problem has several phenomenological implications in cosmology and in astrophysics, including the primordial nucleosynthesis of light elements abundance and other cosmological observables, nucleosynthesis of heavy nuclei and the explosion of massive stars. In this review, we briefly summarize the state of the art on this topic, focusing on three environments: early universe, core-collapse supernovae and compact binary mergers.

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“…The deficit of ν e in the calibration of the SAGE and GALEX experimets with radioactive sources [1,2] ("Galium Anomaly"(GA)) and the deficit in reactor νe fluxes [3,4] ("Reactor Antineutrino Anomaly"(RAA)) can be explained by active-sterile neutrino oscillations with the best-fit values for sterile neutrino parameters of ∆m 2 41 = 2.4 eV 2 and sin 2 2θ ee = 0.14 [5,6]. New measurements [7,8] of beta spectra of fission products of 235 U and 239 Pu give 5.4% smaller ratio than the ILL results used for predictions of the νe fluxes from reactors [3,4]. This can explain RAA.…”

Section: Introductionmentioning

confidence: 96%

New results from the DANSS experiment

Danilov¹,

Skrobova²

2021

Preprint

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The DANSS experiment collected 5.5 million Inverse Beta Decay (IBD) events during 5 years of operation. Data were collected at 3 distances (10.9 m, 11.9 m, and 12.9 m) from the center of the core of the industrial 3.1 GW reactor. The IBD event rate exceeds 5000/day at the smallest distance. The detector position was changed usually 3 times a week. Therefore in the analysis that uses information only about relative IBD counting rates and changes in positron energy spectra shapes many systematic uncertainties were canceled out. No statistically significant evidence for sterile neutrinos is found. The significance of the best-fit point in the 4ν case is only 1.3σ . The excluded area covers a very interesting range of the sterile neutrino parameters up to sin 2 2θ ee < 0.008 in the most sensitive region. The IBD rate dependence on the fission fraction of 239 Pu was measured. It agrees with predictions of the Huber-Mueller model. The reactor power was measured during more than 4 years with ≈ 2% accuracy in 2 days using the rate of neutrino events normalized to the thermal power at the initial period. *** The European Physical Society Conference on High Energy Physics (EPS-HEP2021), *** ** 26-30 July 2021 *** ** Online conference, jointly organized by Universität Hamburg and the research center DESY *** * Speaker.

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Reevaluating reactor antineutrino spectra with new measurements of the ratio between U235 and Pu

Cited by 62 publications

References 20 publications

Physics Opportunities with PROSPECT-II

Physics Opportunities with PROSPECT-II

Neutrino Flavor Conversions in High-Density Astrophysical and Cosmological Environments

New results from the DANSS experiment

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