Publications (57)
Improved Predictions of Reactor Antineutrino Spectra
Th. A. Mueller, D. Lhuillier, M. Fallot +9
We report new calculations of reactor antineutrino spectra including the latest information from nuclear databases and a detailed error budget. The first part of this work is the s…
Updated Summation Model: An Improved Agreement with the Daya Bay Antineutrino Fluxes
M. Estienne, M. Fallot, A. Algora +30
A new summation method model of the reactor antineutrino energy spectrum is presented. It is updated with the most recent evaluated decay databases and with our Total Absorption Ga…
Extensive study of the quality of fission yields from experiment, evaluation and GEF for antineutrino studies and applications
K. -H. Schmidt, M. Estienne, M. Fallot +6
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 o…
Spectroscopy of Na: Bridging the two-proton radioactivity of Mg
M. Assié, F. de Oliveira Santos, T. Davinson +31
The unbound nucleus Na, the intermediate nucleus in the two-proton radioactivity of Mg, was studied by the measurement of the resonant elastic scattering reaction $^{…
Probing pre-formed alpha particles in the ground state of nuclei
J. A. Scarpaci, M. Fallot, D. Lacroix +18
In this Letter, we report on alpha particle emission through the nuclear break-up in the reaction 40Ca on a 40Ca target at 50A MeV. It is observed that, similarly to nucleons, alph…
Direct Measurement of Backgrounds using Reactor-Off Data in Double Chooz
Y. Abe, C. Aberle, J. C. dos Anjos +170
Double Chooz is unique among modern reactor-based neutrino experiments studying disappearance in that data can be collected with all reactors off. In this paper, we pre…
First measurements with a new -electron detector for spectral shape studies
V. Guadilla, A. Algora, M. Estienne +5
The shape of the electron spectrum emitted in decay carries a wealth of information about nuclear structure and fundamental physics. In spite of that, few dedicated measuremen…
On the -decay of Hg
A. Algora, E. GanioÄlu, P. Sarriguren +20
The Gamow-Teller strength distribution of the decay of Hg into Au has been determined for the first time using the total absorption gamma spectroscopy technique and…
Characterization and performance of the DTAS detector
V. Guadilla, J. L. Tain, A. Algora +42
DTAS is a segmented total absorption γ-ray spectrometer developed for the DESPEC experiment at FAIR. It is composed of up to eighteen NaI(Tl) crystals. In this work we study the p…
Total Absorption Gamma-Ray Spectroscopy of 87Br, 88Br and 94Rb Beta-Delayed Neutron Emitters
E. Valencia, J. L. Tain, A. Algora +35
We investigate the decay of 87Br, 88Br and 94Rb using total absorption gamma-ray spectroscopy. These important fission products are beta-delayed neutron emitters. Our data show con…
First Measurement of θ_13 from Delayed Neutron Capture on Hydrogen in the Double Chooz Experiment
Double Chooz Collaboration, Y. Abe, C. Aberle +169
The Double Chooz experiment has determined the value of the neutrino oscillation parameter from an analysis of inverse beta decay interactions with neutron capture on hyd…
Beta-decay studies for applied and basic nuclear physics
A. Algora, J. L. Tain, B. Rubio +2
In this review we will present the results of recent beta-decay studies using the total absorption technique that cover topics of interest for applications, nuclear structure and a…
Novel event classification based on spectral analysis of scintillation waveforms in Double Chooz
T. Abrahão, H. Almazan, J. C. dos Anjos +94
Liquid scintillators are a common choice for neutrino physics experiments, but their capabilities to perform background rejection by scintillation pulse shape discrimination is gen…
Improving Fission-product Decay Data for Reactor Applications: Part I -- Decay Heat
A. L. Nichols, P. Dimitriou, A. Algora +10
Effort has been expended to assess the relative merits of undertaking further decay-data measurements of the main fission-product contributors to the decay heat of neutron-irradiat…
Ortho-positronium observation in the Double Chooz Experiment
Y. Abe, J. C. dos Anjos, J. C. Barriere +143
The Double Chooz experiment measures the neutrino mixing angle by detecting reactor via inverse beta decay. The positron-neutron space and time coincidence all…
Study of Decay Shape Factors in First-Forbidden Transitions with for Reactor Antineutrino Spectra Predictions
G. A. Alcalá, A. Algora, M. Estienne +36
The electron spectra of the decays of Rb and Cs, key contributors to the reactor antineutrino spectrum, were measured at the IGISOL facility using radioactive b…
Development of a Reference Database for Beta-Delayed Neutron Emission
P. Dimitriou, I. Dillmann, B. Singh +30
Beta-delayed neutron emission is important for nuclear structure and astrophysics as well as for reactor applications. Significant advances in nuclear experimental techniques in th…
Anharmonic vibrations in nuclei
M. Fallot, Ph. Chomaz, M. V. Andres +3
In this letter, we show that the non-linearitites of large amplitude motions in atomic nuclei induce giant quadrupole and monopole vibrations. As a consequence, the main source of…
Coulomb versus nuclear break-up of 11Be halo nucleus in a non perturbative framework
M. Fallot, J. A. Scarpaci, D. Lacroix +2
The 11Be break-up is calculated using a non perturbative time-dependent quantum calculation. The evolution of the neutron halo wave function shows an emission of neutron at large a…
Development of a Quality Assurance Process for the SoLid Experiment
Y. Abreu, Y. Amhis, G. Ban +53
The SoLid experiment has been designed to search for an oscillation pattern induced by a light sterile neutrino state, utilising the BR2 reactor of SCKCEN, in Belgium. The…
First Test of Lorentz Violation with a Reactor-based Antineutrino Experiment
Double Chooz Collaboration, Y. Abe, C. Aberle +164
We present a search for Lorentz violation with 8249 candidate electron antineutrino events taken by the Double Chooz experiment in 227.9 live days of running. This analysis, featur…
Enhanced Gamma-Ray Emission from Neutron Unbound States Populated in Beta Decay
J. L. Tain, E. Valencia, A. Algora +35
Total absorption spectroscopy was used to investigate the beta-decay intensity to states above the neutron separation energy followed by gamma-ray emission in 87,88Br and 94Rb. Acc…
New antineutrino energy spectra predictions from the summation of beta decay branches of the fission products
M. Fallot, S. Cormon, M. Estienne +14
In this paper, we study the impact of the inclusion of the recently measured beta decay properties of the Tc, Mo, and Nb nuclei in an update…
Search for Very-Short-Baseline Oscillations of Reactor Antineutrinos with the SoLid Detector
Y. Abreu, Y. Amhis, L. Arnold +57
In this letter we report the first scientific result based on antineutrinos emitted from the BR2 reactor at SCK CEN. The SoLid experiment uses a novel type of highly granular detec…
Letter of Intent for Double-CHOOZ: a Search for the Mixing Angle Theta13
F. Ardellier, I. Barabanov, J. C. Barriere +49
Tremendous progress has been achieved in neutrino oscillation physics during the last few years. However, the smallness of the $\t13$ neutrino mixing angle still remains enigmatic.…
Online Monitoring of the Osiris Reactor with the Nucifer Neutrino Detector
G. Boireau, L. Bouvet, A. P. Collin +51
Originally designed as a new nuclear reactor monitoring device, the Nucifer detector has successfully detected its first neutrinos. We provide the second shortest baseline measurem…
Total Absorption Spectroscopy Study of Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape
A. -A. Zakari-Issoufou, M. Fallot, A. Porta +44
The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor.…
Study of beta spectrum shapes relevant to the prediction of reactor antineutrino spectra
G. A. Alcalá, A. Algora, M. Estienne +35
The shapes of the beta spectra of 92Rb and 142Cs, two of the beta decays most relevant for the prediction of the antineutrino spectrum in reactors, have been measured. A new setup…
A novel segmented-scintillator antineutrino detector
Y. Abreu, Y. Amhis, L. Arnold +53
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 d…
Measurement of in Double Chooz using neutron captures on hydrogen with novel background rejection techniques
Y. Abe, S. Appel, T. Abrahão +142
The Double Chooz collaboration presents a measurement of the neutrino mixing angle using reactor observed via the inverse beta decay reaction in which t…
Total absorption -ray spectroscopy of niobium isomers
V. Guadilla, A. Algora, J. L. Tain +42
The intensity distributions of the decays of Nb and Nb have been determined using the Total Absorption -Ray Spect…
Background-independent measurement of in Double Chooz
Y. Abe, J. C. dos Anjos, J. C. Barriere +143
The oscillation results published by the Double Chooz collaboration in 2011 and 2012 rely on background models substantiated by reactor-on data. In this analysis, we present a back…
-delayed spectroscopy of Ge and competition between Gamow-Teller and first-forbidden transitions in Ga decay
R. Li, D. Verney I. Matea, M. N. Harakeh +28
The -delayed spectroscopy of Ge has been studied using sources of ground and low-lying isomeric states of Ga. A hybrid -ray spectrometer was used, composed of…
Muon capture on light isotopes in Double Chooz
Double Chooz collaboration, Y. Abe, T. Abrahão +144
Using the Double Chooz detector, designed to measure the neutrino mixing angle , the products of capture on C, C, N and O have been meas…
Total absorption -ray spectroscopy of the -delayed neutron emitters I and Rb
V. Guadilla, J. L. Tain, A. Algora +41
The decays of the -delayed neutron emitters I and Rb have been studied with the total absorption -ray spectroscopy technique. The purity of the beams provide…
Determination of Beta Decay Ground State Feeding of Nuclei of Importance for Reactor Applications
V. Guadilla, J. L. Tain, A. Algora +41
In -decay studies the determination of the decay probability to the ground state of the daughter nucleus often suffers from large systematic errors. The difficulty of the measu…
Commissioning and Operation of the Readout System for the SoLid Neutrino Detector
Y. Abreu, Y. Amhis, G. Ban +53
The SoLid experiment aims to measure neutrino oscillation at a baseline of 6.4 m from the BR2 nuclear reactor in Belgium. Anti-neutrinos interact via inverse beta decay (IBD), resu…
Reactor Simulation for Antineutrino Experiments using DRAGON and MURE
C. L. Jones, A. Bernstein, J. M. Conrad +6
Rising interest in nuclear reactors as a source of antineutrinos for experiments motivates validated, fast, and accessible simulations to predict reactor fission rates. Here we pre…
Antineutrino emission and gamma background characteristics from a thermal research reactor
V. M. Bui, L. Giot, M. Fallot +16
The detailed understanding of the antineutrino emission from research reactors is mandatory for any high sensitivity experiments either for fundamental or applied neutrino physics,…
Cosmic-muon characterization and annual modulation measurement with Double Chooz detectors
T. Abrahão, H. Almazan, J. C. dos Anjos +107
A study on cosmic muons has been performed for the two identical near and far neutrino detectors of the Double Chooz experiment, placed at 120 and 300 m.w.e. undergroun…
Nuclear break-up of 11Be
V. Lima, J. A. Scarpaci, D. Lacroix +14
The break-up of 11Be was studied at 41AMeV using a secondary beam of 11Be from the GANIL facility on a 48Ti target by measuring correlations between the 10Be core, the emitted neut…
Characterization of the Spontaneous Light Emission of the PMTs used in the Double Chooz Experiment
Double Chooz collaboration, Y. Abe, T. Abrahão +146
During the commissioning of the first of the two detectors of the Double Chooz experiment, an unexpected and dominant background caused by the emission of light inside the optical…
Reactor electron antineutrino disappearance in the Double Chooz experiment
Y. Abe, C. Aberle, J. C. dos Anjos +162
The Double Chooz experiment has observed 8,249 candidate electron antineutrino events in 227.93 live days with 33.71 GW-ton-years (reactor power x detector mass x livetime) exposur…
Microscopic description of Coulomb and nuclear excitation of multiphonon states in Ca + Ca collisions
M. V. Andres, F. Catara, E. G. Lanza +3
We calculate the inelastic scattering cross sections to populate one- and two-phonon states in heavy ion collisions with both Coulomb and nuclear excitations. Starting from a micro…
SoLid: A short baseline reactor neutrino experiment
SoLid Collaboration, Y. Abreu, Y. Amhis +59
The SoLid experiment, short for Search for Oscillations with a Lithium-6 detector, is a new generation neutrino experiment which tries to address the key challenges for high precis…
Study of the -decay of Tc with Total Absorption -Ray Spectroscopy
V. Guadilla, A. Algora, J. L. Tain +42
The \b{eta}-decay of 100 Tc has been studied using the Total Absorption γ-Ray Spectroscopy technique at IGISOL. In this work the new DTAS spectrometer in coincidence with a cylind…
Characterization of a cylindrical plastic β-detector with Monte Carlo simulations of optical photons
V. Guadilla, A. Algora, J. L. Tain +39
In this work we report on the Monte Carlo study performed to understand and reproduce experimental measurements of a new plastic \b{eta}-detector with cylindrical geometry. Since e…
Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment
Y. Abe, C. Aberle, T. Akiri +182
The Double Chooz Experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. A ratio of 0.944 0.016 (stat) 0…
Total Absorption Spectroscopy Study of the Beta Decay of Br and Rb
S. Rice, A. Algora, J. L. Tain +36
The beta decays of Br and Rb have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the IGISOL facility in Jyvä…
Simultaneous impacts of nuclear shell structure and collectivity on decay: Evidence from Ga
R. Li, D. Verney, G. De Gregorio +32
The Gamow-Teller strength distribution covering the entire -decay window, up to 10.312(4) MeV, of Ga was measured for the first time in photo fission of UC induce…
The Double Chooz antineutrino detectors
Double Chooz Collaboration, H. de Kerret, Y. Abe +247
This article describes the setup and performance of the near and far detectors in the Double Chooz experiment. The electron antineutrinos of the Chooz nuclear power plant were meas…
Microscopic calculations of double and triple Giant Resonance excitation in heavy ion collisions
E. G. Lanza, F. Catara, M. V. Andres +3
We perform microscopic calculations of the inelastic cross sections for the double and triple excitation of giant resonances induced by heavy ion probes within a semicalssical coup…
Precision Muon Reconstruction in Double Chooz
Double Chooz collaboration, Y. Abe, J. C. dos Anjos +141
We describe a muon track reconstruction algorithm for the reactor anti-neutrino experiment Double Chooz. The Double Chooz detector consists of two optically isolated volumes of liq…
Optimisation of the scintillation light collection and uniformity for the SoLid experiment
Y. Abreu, Y. Amhis, W. Beaumont +48
This paper presents a comprehensive optimisation study to maximise the light collection efficiency of scintillating cube elements used in the SoLid detector. Very short baseline re…
Performance of a full scale prototype detector at the BR2 reactor for the SoLid experiment
Y. Abreu, Y. Amhis, L. Arnold +48
The SoLid collaboration has developed a new detector technology to detect electron anti-neutrinos at close proximity to the Belgian BR2 reactor at surface level. A 288kg protot…
Total absorption -ray spectroscopy of the decays of Y
V. Guadilla, L. Le Meur, M. Fallot +42
The decays of the ground state (gs) and isomeric state (m) of Y have been studied with the total absorption -ray spectroscopy technique at the Ion Guide Isotope Sep…
Improved measurements of the neutrino mixing angle with the Double Chooz detector
Y. Abe, J. C. dos Anjos, J. C. Barriere +143
The Double Chooz experiment presents improved measurements of the neutrino mixing angle using the data collected in 467.90 live days from a detector positioned at an aver…