skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Total Absorption Spectroscopy Study of ⁹²Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape

Abstract

The accurate determination of the emitted reactor antineutrino flux is still a major challenge for actual and future neutrino experiments at reactors, especially after the evidence of a disagreement between the measured antineutrino energy spectrum by Double Chooz, Daya Bay, and Reno and calculated antineutrino spectra obtained from the conversion of the unique integral beta spectra measured at the ILL reactor. Using nuclear data to compute reactor antineutrino spectra may help understanding this bias, with the study of the underlying nuclear physics. Summation calculations allow identifying a list of nuclei that contribute importantly to the antineutrino energy spectra emitted after the fission of ²³⁹ ,²⁴¹Pu and ²³⁵ ,²³⁸U, and whose beta decay properties might deserve new measurements. Among these nuclei, ⁹²Rb exhausts by itself about 16% of of the antineutrino energy spectrum emitted by Pressurized Water Reactors in the 5 to 8 MeV range. In this Letter, we report new Total Absorption Spectroscopy (TAS) results for this important contributor. The obtained beta feeding from ⁹²Rb shows beta intensity unobserved before in the 4.5 to 5.5 MeV energy region and gives a ground state to ground state branch of 87.5 % ± 3%. These new data induce a dramatic change inmore » recent summation calculations where a 51% GS to GS branch was considered for ⁹²Rb, increasing the summation antineutrino spectrum in the region nearby the observed bias.The new data still have an important impact on other summation calculations in which more recent data were considered« less

Authors:
 [1];  [2];  [2];  [2];  [3];  [4];  [4];  [5];  [2];  [2];  [2];  [4];  [6];  [5];  [2];  [7];  [8];  [2];  [6];  [4] more »;  [5];  [8];  [5];  [7];  [7];  [6];  [6];  [4];  [6];  [9];  [8];  [8];  [4];  [6];  [4];  [5];  [6];  [5];  [2];  [6];  [4];  [6] « less
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); National Physical Lab., Teddington (United Kingdom)
  2. Univ. de Nantes, Nantes (France)
  3. IFIC (CSIC-Univ.), Valencia (Spain); MTA ATOMKI (Hungary)
  4. IFIC (CSIC-Univ.), Valencia (Spain)
  5. Univ. Surrey, Guildford (United Kingdom)
  6. IGISOL Univ., Jyvaskyla (Finland)
  7. Univ. Politecnica de Catalunya (Spain)
  8. Research Centre for Energy, Environment and Technology (CIEMAT), Madrid (Spain)
  9. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
IGISOL Collaboration
OSTI Identifier:
1183877
Alternate Identifier(s):
OSTI ID: 1213966
Report Number(s):
BNL-108023-2015-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: EST-003-NEFA; KB0301041
Grant/Contract Number:
SC00112704; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 115; Journal Issue: 10; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; national nuclear data center

Citation Formats

Sonzogni, A., Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Algora, A., Tain, J. L., Valencia, E., Rice, S., Bui, V. M., Cormon, S., Estienne, M., Agramunt, J., Aysto, J., Bowry, M., Briz Monago, J. A., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Eloma, V., Estvez, E., Farrelly, G. F., Garcia, A., Gelletly, W., Gomez-Hornillos, M. B., Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Kondev, F. G., Martinez, T., Mendoza, E., Molina, F., Moore, I., Perez, A., Podolyak, Zs., Penttil, H., Regan, P. H., Shiba, T., Rissanen, J., Rubio, B., and Weber, C. Total Absorption Spectroscopy Study of ⁹²Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape. United States: N. p., 2015. Web. doi:10.1103/PhysRevLett.115.102503.
Sonzogni, A., Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Algora, A., Tain, J. L., Valencia, E., Rice, S., Bui, V. M., Cormon, S., Estienne, M., Agramunt, J., Aysto, J., Bowry, M., Briz Monago, J. A., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Eloma, V., Estvez, E., Farrelly, G. F., Garcia, A., Gelletly, W., Gomez-Hornillos, M. B., Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Kondev, F. G., Martinez, T., Mendoza, E., Molina, F., Moore, I., Perez, A., Podolyak, Zs., Penttil, H., Regan, P. H., Shiba, T., Rissanen, J., Rubio, B., & Weber, C. Total Absorption Spectroscopy Study of ⁹²Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape. United States. doi:10.1103/PhysRevLett.115.102503.
Sonzogni, A., Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Algora, A., Tain, J. L., Valencia, E., Rice, S., Bui, V. M., Cormon, S., Estienne, M., Agramunt, J., Aysto, J., Bowry, M., Briz Monago, J. A., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Eloma, V., Estvez, E., Farrelly, G. F., Garcia, A., Gelletly, W., Gomez-Hornillos, M. B., Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Kondev, F. G., Martinez, T., Mendoza, E., Molina, F., Moore, I., Perez, A., Podolyak, Zs., Penttil, H., Regan, P. H., Shiba, T., Rissanen, J., Rubio, B., and Weber, C. Mon . "Total Absorption Spectroscopy Study of ⁹²Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape". United States. doi:10.1103/PhysRevLett.115.102503. https://www.osti.gov/servlets/purl/1183877.
@article{osti_1183877,
title = {Total Absorption Spectroscopy Study of ⁹²Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape},
author = {Sonzogni, A. and Zakari-Issoufou, A. -A. and Fallot, M. and Porta, A. and Algora, A. and Tain, J. L. and Valencia, E. and Rice, S. and Bui, V. M. and Cormon, S. and Estienne, M. and Agramunt, J. and Aysto, J. and Bowry, M. and Briz Monago, J. A. and Caballero-Folch, R. and Cano-Ott, D. and Cucoanes, A. and Eloma, V. and Estvez, E. and Farrelly, G. F. and Garcia, A. and Gelletly, W. and Gomez-Hornillos, M. B. and Gorlychev, V. and Hakala, J. and Jokinen, A. and Jordan, M. D. and Kankainen, A. and Kondev, F. G. and Martinez, T. and Mendoza, E. and Molina, F. and Moore, I. and Perez, A. and Podolyak, Zs. and Penttil, H. and Regan, P. H. and Shiba, T. and Rissanen, J. and Rubio, B. and Weber, C.},
abstractNote = {The accurate determination of the emitted reactor antineutrino flux is still a major challenge for actual and future neutrino experiments at reactors, especially after the evidence of a disagreement between the measured antineutrino energy spectrum by Double Chooz, Daya Bay, and Reno and calculated antineutrino spectra obtained from the conversion of the unique integral beta spectra measured at the ILL reactor. Using nuclear data to compute reactor antineutrino spectra may help understanding this bias, with the study of the underlying nuclear physics. Summation calculations allow identifying a list of nuclei that contribute importantly to the antineutrino energy spectra emitted after the fission of ²³⁹,²⁴¹Pu and ²³⁵,²³⁸U, and whose beta decay properties might deserve new measurements. Among these nuclei, ⁹²Rb exhausts by itself about 16% of of the antineutrino energy spectrum emitted by Pressurized Water Reactors in the 5 to 8 MeV range. In this Letter, we report new Total Absorption Spectroscopy (TAS) results for this important contributor. The obtained beta feeding from ⁹²Rb shows beta intensity unobserved before in the 4.5 to 5.5 MeV energy region and gives a ground state to ground state branch of 87.5 % ± 3%. These new data induce a dramatic change in recent summation calculations where a 51% GS to GS branch was considered for ⁹²Rb, increasing the summation antineutrino spectrum in the region nearby the observed bias.The new data still have an important impact on other summation calculations in which more recent data were considered},
doi = {10.1103/PhysRevLett.115.102503},
journal = {Physical Review Letters},
number = 10,
volume = 115,
place = {United States},
year = {Mon Mar 09 00:00:00 EDT 2015},
month = {Mon Mar 09 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

Save / Share: