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The Daya Bay reactor antineutrino experiment has recently measured the neutrino mixing parameter sin22{\theta}13 by observing electron antineutrino disappearance over kilometer-scale baselines using six antineutrino detectors at near and…

Instrumentation and Detectors · Physics 2017-08-23 M. Krohn , B. R. Littlejohn , K. M. Heeger

Anomalies in past neutrino measurements have led to the discovery that these particles have non-zero mass and oscillate between their three flavors when they propagate. In the 2010's, similar anomalies observed in the antineutrino spectra…

Antineutrinos produced at nuclear reactors constitute a severe source of background for the detection of geoneutrinos, which bring to the Earth's surface information about natural radioactivity in the whole planet. In this framework we…

Instrumentation and Detectors · Physics 2015-06-23 Marica Baldoncini , Ivan Callegari , Giovanni Fiorentini , Fabio Mantovani , Barbara Ricci , Virginia Strati , Gerti Xhixha

Measurements of the solar neutrino mass-squared difference from KamLAND and solar neutrino data are somewhat discrepant, perhaps due to nonstandard neutrino interactions in matter. We show that the zenith angle distribution of solar…

High Energy Physics - Phenomenology · Physics 2017-05-30 Jiajun Liao , Danny Marfatia , Kerry Whisnant

Several observed anomalies in neutrino oscillation data could be explained by a hypothetical fourth neutrino separated from the three standard neutrinos by a squared mass difference of a few 0.1 eV$^2$ or more. This hypothesis can be tested…

Instrumentation and Detectors · Physics 2015-06-11 Th. Lasserre

Neutrino flavour oscillation is one of the primary indication of the existence of new physics beyond standard model. The presence of small neutrino mass is indispensable to explicate the oscillation among different flavours of neutrino. By…

High Energy Physics - Phenomenology · Physics 2023-01-31 Trisha Sarkar

Nuclear reactors provide intense sources of electron antineutrinos, characterized by few-MeV energy E and unoscillated spectral shape Phi(E). High-statistics observations of reactor neutrino oscillations over medium-baseline distances L ~…

High Energy Physics - Phenomenology · Physics 2015-12-02 F. Capozzi , E. Lisi , A. Marrone

In this paper, we first calculate the realistic Earth matter effects in the detection of type II supernova neutrinos at the Daya Bay reactor neutrino experiment which is currently under construction. It is found that the Earth matter…

High Energy Physics - Phenomenology · Physics 2009-06-19 Xin-Heng Guo , Ming-Yang Huang , Bing-Lin Young

Three dedicated reactor experiments, Double Chooz, RENO and Daya Bay, have recently performed a precision measurement of the third standard mixing angle $\theta_{13}$ exploiting a multiple baseline comparison of $\nu_e \to \nu_e$…

High Energy Physics - Phenomenology · Physics 2015-06-17 Antonio Palazzo

Recent measurements of reactor-produced antineutrino fluxes and energy spectra are inconsistent with models based on measured thermal fission beta spectra. In this paper, we examine the dependence of antineutrino production on fission…

Nuclear Theory · Physics 2018-05-09 B. R. Littlejohn , A. Conant , D. A. Dwyer , A. Erickson , I. Gustafson , K. Hermanek

The Reactor Antineutrino Anomaly refers to the deficit observed between the average event rate measured in reactor antineutrino experiments with respect to the theoretical prediction. This anomaly was first identified in 2011 ($2.5\sigma$)…

High Energy Physics - Phenomenology · Physics 2026-05-12 C. Giunti , Y. F. Li , R. P. Zhang

Nuclear reactors have served as the antineutrino source for many fundamental physics experiments. The techniques developed by these experiments make it possible to use these very weakly interacting particles for a practical purpose. The…

Nuclear Experiment · Physics 2008-12-18 N. S. Bowden

In this paper I give an overview of the status of neutrino oscillation experiments performed using nuclear reactors as sources of neutrinos. I review the present generation of experiments (Chooz and Palo Verde) with baselines of about 1 km…

High Energy Physics - Experiment · Physics 2009-10-31 Giorgio Gratta

Several new reactor neutrino experiments are being considered to measure the parameter theta-13. The current plans for Angra, Braidwood, Daya Bay, KASKA and KR2DET are reviewed. A case is made that, together with Double-CHOOZ, a future…

High Energy Physics - Phenomenology · Physics 2009-11-11 Maury Goodman

The existence of Large Extra Dimensions can be probed in various neutrino experiments. We analyze several neutrino data sets in a model with a dominant large extra dimension. We show that the Gallium anomaly can be explained with neutrino…

High Energy Physics - Phenomenology · Physics 2022-09-14 D. V. Forero , C. Giunti , C. A. Ternes , O. Tyagi

We suggest a would-be solution to the solar neutrino tension why solar neutrinos appear to mix differently from reactor antineutrinos, in theoretical respect. To do that, based on an extended theory with light sterile neutrinos added we…

High Energy Physics - Phenomenology · Physics 2021-03-31 Y. H. Ahn

We present results of a study of neutrino oscillation based on a 766 ton-year exposure of KamLAND to reactor anti-neutrinos. We observe 258 \nuebar\ candidate events with energies above 3.4 MeV compared to 365.2 events expected in the…

High Energy Physics - Experiment · Physics 2012-08-27 The KamLAND Collaboration

We present an updated estimate of reactor antineutrino signal all over the world, with particular attention to the sites proposed for existing and future geo-neutrino experiment. In our calculation we take into account the most updated data…

High Energy Physics - Experiment · Physics 2014-03-18 B. Ricci , F. Mantovani , M. Baldoncini , J. Esposito , L. Ludhova , S. Zavatarelli

We consider an alternative explanation for the deficit of nu_e in Ga solar neutrino calibration experiments and of the anti nu_e in short baseline reactor experiments by a model where neutrinos can oscillate into sterile Kaluza-Klein modes…

High Energy Physics - Phenomenology · Physics 2012-05-29 P. A. N. Machado , H. Nunokawa , F. A. Pereira dos Santos , R. Zukanovich Funchal

Knowledge of the energy spectrum of $^8$B neutrinos is an important ingredient for interpreting experiments that detect energetic neutrinos from the Sun. The neutrino spectrum deviates from the allowed approximation because of the broad…

Nuclear Experiment · Physics 2013-05-29 W. T. Winter , S. J. Freedman , K. E. Rehm , J. P. Schiffer