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Title: Large Impact of the Decay of Niobium Isomers on the Reactor ν ¯ e Summation Calculations

Journal Article · · Physical Review Letters
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  1. CSIC-Univ. de Valencia, Valencia (Spain); Univ. de Nantes, Nantes (France)
  2. CSIC-Univ. de Valencia, Valencia (Spain); Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen (Hungary)
  3. CSIC-Univ. de Valencia, Valencia (Spain)
  4. Univ. de Nantes, Nantes (France)
  5. Brookhaven National Lab. (BNL), Upton, NY (United States)
  6. Univ. of Jyvaskyla, Jyvaskyla (Finland)
  7. Univ. Complutense, Madrid (Spain)
  8. Istanbul Univ., Istanbul (Turkey)
  9. Univ. of Surrey, Guildford (United Kingdom)
  10. Institut de Physique Nucleaire d’Orsay, Orsay (France)
  11. Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, Madrid (Spain)
  12. Instituto de Estructura de la Materia, Madrid (Spain); CSIC-Univ. de Valencia, Valencia (Spain)

Even mass neutron-rich niobium isotopes are among the principal contributors to the reactor antineutrino energy spectrum. They are also among the most challenging to measure due to the refractory nature of niobium, and because they exhibit isomeric states lying very close in energy. The β-intensity distributions of 100gs,100mNb and 102gs,102mNb β decays have been determined using the total absorption γ-ray spectroscopy technique. The measurements were performed at the upgraded Ion Guide Isotope Separator On-Line facility at the University of Jyväskylä. Here, the double Penning trap system JYFLTRAP was employed to disentangle the β decay of the isomeric states. The new data obtained in this challenging measurement have a large impact in antineutrino summation calculations. As a result, for the first time the discrepancy between the summation model and the reactor antineutrino measurements in the region of the shape distortion has been reduced.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
SC0012704
OSTI ID:
1497386
Report Number(s):
BNL--211299-2019-JAAM
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 122; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (57)

Nuclear Data Sheets for A = 100 journal May 1997
Nuclear Data Sheets for A = 102 journal March 1998
Measurement of θ 13 in Double Chooz using neutron captures on hydrogen with novel background rejection techniques journal January 2016
The essential decay of pandemonium: A demonstration of errors in complex beta-decay schemes journal November 1977
Antineutrino spectra from 241Pu and 239Pu thermal neutron fission products journal February 1989
Cooling and bunching of ion beams for collinear laser spectroscopy journal May 2003
Geant4—a simulation toolkit
  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8
journal July 2003
Pulse pileup correction of large NaI(Tl) total absorption spectra using the true pulse shape
  • Cano-Ott, D.; Tain, J. L.; Gadea, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 430, Issue 2-3 https://doi.org/10.1016/S0168-9002(99)00216-8
journal July 1999
Monte Carlo simulation of the response of a large NaI(Tl)total absorption spectrometer for β-decay studies
  • Cano-Ott, D.; Tain, J. L.; Gadea, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 430, Issue 2-3 https://doi.org/10.1016/S0168-9002(99)00217-X
journal July 1999
Nuclear Data Sheets for A = 100 journal February 2008
RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations journal December 2009
ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data journal December 2011
The influence of the unknown de-excitation pattern in the analysis of -decay total absorption spectra
  • Tain, J. L.; Cano-Ott, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 571, Issue 3 https://doi.org/10.1016/j.nima.2006.09.084
journal February 2007
Algorithms for the analysis of -decay total absorption spectra
  • Tain, J. L.; Cano-Ott, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 571, Issue 3 https://doi.org/10.1016/j.nima.2006.10.098
journal February 2007
A decay total absorption spectrometer for DESPEC at FAIR
  • Tain, J. L.; Algora, A.; Agramunt, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 803 https://doi.org/10.1016/j.nima.2015.09.009
journal December 2015
Characterization and performance of the DTAS detector
  • Guadilla, V.; Tain, J. L.; Algora, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 910 https://doi.org/10.1016/j.nima.2018.09.001
journal December 2018
Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP
  • Eronen, T.; Elomaa, V. -V.; Hager, U.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 266, Issue 19-20 https://doi.org/10.1016/j.nimb.2008.05.076
journal October 2008
Towards commissioning the new IGISOL-4 facility journal December 2013
First experiment with the NUSTAR/FAIR Decay Total Absorption γ -Ray Spectrometer (DTAS) at the IGISOL IV facility journal June 2016
New results from RENO and prospects with RENO-50 journal August 2015
Neutrino physics with JUNO journal February 2016
The NUBASE2016 evaluation of nuclear properties journal March 2017
Mass and excited states of Nb 100 journal April 1979
β decay of the 5 + isomer of the odd-odd nucleus 100 Nb journal June 2001
Improved predictions of reactor antineutrino spectra journal May 2011
Determination of antineutrino spectra from nuclear reactors journal August 2011
Nuclear structure insights into reactor antineutrino spectra journal January 2015
Total absorption γ -ray spectroscopy of the β -delayed neutron emitters Br 87 , Br 88 , and Rb 94 journal February 2017
Experimental study of Tc 100 β decay with total absorption γ -ray spectroscopy journal July 2017
Total absorption spectroscopy study of the β decay of Br 86 and Rb 91 journal July 2017
Revealing fine structure in the antineutrino spectra from a nuclear reactor journal July 2018
Reactor antineutrino anomaly journal April 2011
Reactor Decay Heat in Pu 239 : Solving the γ Discrepancy in the 4–3000-s Cooling Period journal November 2010
Indication of Reactor ν ¯ e Disappearance in the Double Chooz Experiment journal March 2012
Observation of Electron-Antineutrino Disappearance at Daya Bay journal April 2012
Observation of Reactor Electron Antineutrinos Disappearance in the RENO Experiment journal May 2012
New Antineutrino Energy Spectra Predictions from the Summation of Beta Decay Branches of the Fission Products journal November 2012
Experimental Determination of the Antineutrino Spectrum of the Fission Products of U 238 journal March 2014
Total Absorption Spectroscopy Study of Rb 92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape journal September 2015
Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay journal February 2016
Observation of Energy and Baseline Dependent Reactor Antineutrino Disappearance in the RENO Experiment journal May 2016
Decays of the Three Top Contributors to the Reactor ν ¯ e High-Energy Spectrum, Rb 92 , Y 96 gs , and Cs 142 , Studied with Total Absorption Spectroscopy journal August 2016
Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay journal June 2017
Impact of Modular Total Absorption Spectrometer measurements of β decay of fission products on the decay heat and reactor ν ¯ e flux calculation journal August 2017
Dissecting Reactor Antineutrino Flux Calculations journal September 2017
Analysis of the Daya Bay Reactor Antineutrino Flux Changes with Fuel Burnup journal January 2018
Detection of the Free Neutrino: a Confirmation journal July 1956
Decay study of neutron-rich zirconium isotopes employing a Penning trap as a spectroscopy tool journal January 2007
JYFLTRAP: a Penning trap for precision mass spectroscopy and isobaric purification journal April 2012
Measurement of θ$_{13}$ in Double Chooz using neutron captures on hydrogen with novel background rejection techniques text January 2016
Preparing isomerically pure beams of short-lived nuclei at JYFLTRAP text January 2008
Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment text January 2012
New antineutrino energy spectra predictions from the summation of beta decay branches of the fission products text January 2012
Neutrino Physics with JUNO text January 2015
Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay text January 2015
Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay text January 2017
Analysis of the Daya Bay Reactor Antineutrino Flux Changes with Fuel Burnup text January 2017

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