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Related papers: The reactor antineutrino spectrum calculation

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Short distance reactor antineutrino experiments measure an antineutrino spectrum a few percent lower than expected from theoretical predictions. In this work we study the potential of low energy threshold reactor experiments in the context…

High Energy Physics - Phenomenology · Physics 2019-08-20 B. C. Cañas , E. A. Garcés , O. G. Miranda , A. Parada

Nuclear structure calculations in the context of a novel hybrid nuclear model, combining the nuclear shell model and the microscopic quasiparticle-phonon model are presented. The predictivity of the hybrid model is tested by computing…

Nuclear Theory · Physics 2025-02-13 Matti Hellgren , Dimitrios K. Papoulias , Jouni Suhonen

The estimations of integral intensity and energy spectrum of geoantineutrino on the Earth's surface (in the absence of oscillations) from different radioactive sources (U, Th and K) are obtained on the basis of temporal evolution analysis…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. D. Rusov , V. N. Pavlovich , V. N. Vaschenko , V. A. Tarasov , D. A. Litvinov , V. N. Bolshakov , E. N. Khotyaintseva

We have surveyed leptonic and grand unified models of neutrino masses and mixings in the literature which are still viable and give numerical predictions for the reactor angle, $\theta_{13}$. The results are of considerable interest in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Carl H. Albright , Mu-Chun Chen

Nuclear fission reactors are abundant sources of antineutrinos. The flux and spectrum of antineutrinos emitted by a reactor can indicate its activity and composition, suggesting potential applications of neutrino measurements beyond…

The masses of sterile neutrinos are not yet known, and depending on the orders of magnitudes, their existence may explain reactor anomalies or the spectral shape of reactor neutrino events at 1.5km-baseline detector. Here, we present…

High Energy Physics - Phenomenology · Physics 2014-08-20 Sin Kyu Kang , Yeong-Duk Kim , Young-Ju Ko , Kim Siyeon

Neutrinos are elementary particles in the standard model of particle physics. There are 3 flavors of neutrinos that oscillate among themselves. Their oscillation can be described by a 3$\times$3 unitary matrix, containing three mixing…

High Energy Physics - Experiment · Physics 2015-06-19 Haoqi Lu

We have studied the properties of hot $^{234,236}$U and $^{240}$Pu nuclei in the framework of relativistic mean field formalism. The recently developed FSUGarnet and IOPB-I parameter sets are implemented for the first time to deform nuclei…

Nuclear Theory · Physics 2018-06-21 Abdul Quddus , K. C. Naik , S. K. Patra

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

The prompt fission neutron spectra for neutron-induced fission of 233U for low energy neutrons (below 6 MeV) are calculated using the nuclear evaporation theory with a semi-empirical method, in which the partition of the total excitation…

Nuclear Theory · Physics 2015-06-16 Yong-Jing Chen , Jia Min , Ting-Jin Liu , Neng-Chuan Shu

The mechanism of beta decay in nature is not understood yet. Mirrored energy spectra of electron and antineutrino can clarify the situation. A special experiment is needed to measure antineutrino spectrum from known beta-decaying isotope to…

High Energy Physics - Phenomenology · Physics 2021-02-26 S. V. Silaeva , V. V. Sinev

For the first time an analytic expression was obtained for the inelastic neutron scattering law with an isotropic neutron source within the gas model, considering moderating medium temperature as a parameter. The inelastic scattering law is…

Uncertainties of fission fraction is an important uncertainty source for the antineutrino flux prediction in a reactor antineutrino experiment. A new MC-based method of evaluating the covariance coefficients between isotopes was proposed.…

High Energy Physics - Experiment · Physics 2017-01-04 X. B. Ma , R. M. Qiu , Y. X. Chen

The new concept of antineutrino source for future short-baseline experiments is discussed. The source ensures: 1) well defined hard antineutrino flux; 2) the rate of counts more than ~(1E+2 - 1E+3) per day in the detector volume about cubic…

Instrumentation and Detectors · Physics 2022-10-12 V. I. Lyashuk

The next generation of very-short-baseline reactor experiments will require compact detectors operating at surface level and close to a nuclear reactor. This paper presents a new detector concept based on a composite solid scintillator…

We propose a new method for calculating spectra and luminosities for (anti)neutrinos produced in the pre-supernova environment by weak processes with hot nuclei. It is based on the thermal quasiparticle random phase approximation (TQRPA),…

Nuclear Theory · Physics 2023-12-14 A. A. Dzhioev , A. V. Yudin , N. V. Dunina-Barkovskaya , A. I. Vdovin

Nuclear-structure calculations for the description of low-energy neutral-current neutrino scattering off the stable $^{203,205}$Tl isotopes are performed in the context of the nuclear shell model using the model space jj56pn. Cross-section…

Nuclear Theory · Physics 2024-10-04 Dimitrios K. Papoulias , Matti Hellgren , Jouni Suhonen

We discuss the possibility of forecasting earthquakes by means of (anti)neutrino tomography. Antineutrinos emitted from reactors are used as a probe. As the antineutrinos traverse through a region prone to earthquakes, observable variations…

High Energy Physics - Phenomenology · Physics 2015-05-18 Bin Wang , Ya-Zheng Chen , Xue-Qian Li

The electron energy spectra, not connected to b-decay, of 235U- and 239Pu-films, irradiated by thermal neutrons, obtained by a Monte Carlo method is presented in the given work. The modelling was performed with the help of a computer code…

Nuclear Theory · Physics 2007-05-23 V. D. Rusova , V. N. Pavlovychb , V. A. Tarasova , S. V. Iaroshenkob , D. A. Litvinova