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We show that fitting linear combinations of low-energy beta-beam spectra to supernova-neutrino energy-distributions reconstructs the response of a nuclear target to a supernova flux in a very accurate way. This allows one to make direct…

Nuclear Theory · Physics 2009-11-11 N. Jachowicz , G. C. McLaughlin

The experimental and theoretical research on the physics of massive neutrinos is based on the standard paradigm of three-neutrino mixing, which describes the oscillations of neutrino flavors measured in solar, atmospheric, and long-baseline…

High Energy Physics - Experiment · Physics 2024-12-18 Ilham El Atmani

We describe a beta electron spectrometer for use in an upcoming experiment that will measure the beta-antineutrino correlation coefficient (a-coefficient) in neutron beta decay. Electron energy is measured by a thick plastic scintillator…

Potential applications of neutrino detection to nuclear security have been discussed since the 1970s. Recent years have seen great progress in detector technologies based on inverse beta decay, with the demonstration of ton-scale…

Instrumentation and Detectors · Physics 2020-09-30 Maitland Bowen , Patrick Huber

The understanding of the antineutrino production in fission and the theoretical calculation of their energy spectra in different types of fission reactors rely on the application of the summation method, where the individual contributions…

Nuclear Experiment · Physics 2020-12-16 K. -H. Schmidt , M. Estienne , M. Fallot , S. Cormon , A. Cucoanes , B. Jurado , K. Kern , Ch. Schmitt , T. Shiba

A next-generation neutrino oscillation experiment using reactor neutrinos could give important information on the size of mixing angle $\theta_{13}$. The motivation and goals for a new reactor measurement are discussed in the context of…

High Energy Physics - Experiment · Physics 2017-08-23 M. H. Shaevitz , J. M. Link

This project is focused on the development of a novel strategy for the precise measurement of beta decay energy spectra. The exact determination of beta spectra has wide implications in the particle and nuclear physics fields: from sterile…

The measurement of the beta asymmetry parameter in nuclear beta decay is a potentially very sensitive tool to search for non V-A components in the charge-changing weak interaction. To reach the required precision (percent level) all effects…

Segmented antineutrino detectors placed near a compact research reactor provide an excellent opportunity to probe short-baseline neutrino oscillations and precisely measure the reactor antineutrino spectrum. Close proximity to a reactor…

Instrumentation and Detectors · Physics 2015-01-05 T. J. Langford

Proposed low energy beta beam facilities would be capable of producing intense beams of neutrinos (anti-neutrinos) with well defined spectra. We present analytic expressions and numerical results which accurately show how the total neutrino…

High Energy Physics - Phenomenology · Physics 2008-11-26 Philip S. Amanik , Gail C. McLaughlin

The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make both a precise measurement of the antineutrino spectrum from a highly-enriched uranium reactor and to probe eV-scale sterile neutrinos by searching for…

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

Only weakly interacting, neutrinos are the principal messengers reaching us from the center of a supernova. Terrestrial neutrino telescopes, such as SNO and SuperKamiokande, can provide precious information about the processes in the core…

Nuclear Theory · Physics 2009-11-11 N. Jachowicz , G. C. McLaughlin

We identify a new, flux-dependent correction to the antineutrino spectrum as produced in nuclear reactors. The abundance of certain nuclides, whose decay chains produce antineutrinos above the threshold for inverse beta decay, has a…

High Energy Physics - Phenomenology · Physics 2016-03-30 Patrick Huber , Patrick Jaffke

Recently, three successful antineutrino experiments (Daya Bay, Double Chooz, and RENO) measured the neutrino mixing angle theta_{13}; however, significant discrepancies were found, both in the absolute flux and spectral shape. Much effort…

Instrumentation and Detectors · Physics 2018-10-17 X. B. Ma , J. Y. Liu , J. Y. Xu , F. Lu , Y. X. Chen

With the goal of determining the $\theta_{13}$ neutrino oscillation mixing angle, the measurements of reactor antineutrino fluxes at the Double Chooz, RENO and Daya Bay experimental facilities have uncovered a systematic discrepancy between…

Nuclear Theory · Physics 2019-07-24 J. Petković , T. Marketin , G. Martínez-Pinedo , N. Paar

We review the status of the Standard Model theory of neutron beta decay. Particular emphasis is put on the recent developments in the electroweak radiative corrections. Given that some existing approaches give slightly different results, we…

High Energy Physics - Phenomenology · Physics 2023-11-01 Mikhail Gorchtein , Chien-Yeah Seng

Flux is an important source of uncertainties for a reactor neutrino experiment. It is determined from thermal power measurements, reactor core simulation, and knowledge of neutrino spectra of fuel isotopes. Past reactor neutrino experiments…

High Energy Physics - Experiment · Physics 2015-05-27 Jun Cao

Reactor antineutrinos have played a significant role in establishing the standard model of particle physics and the theory of neutrino oscillations. In this article, we review the reactor antineutrino flux and in particular the reactor…

High Energy Physics - Phenomenology · Physics 2024-03-12 Chao Zhang , Xin Qian , Muriel Fallot

Measurements of the reactor antineutrino flux and spectrum compared to model predictions have revealed an apparent deficit in the interaction rates of reactor antineutrinos and an unexpected spectral deviation. PROSPECT, the Precision…

Instrumentation and Detectors · Physics 2015-11-03 Karin Gilje