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

A. A. Zakari-Issoufou; M. Fallot; A. Porta; A. Algora; J. L. Tain; E. Valencia; S. Rice; V. M. Bui; S. Cormon; M. Estienne; J. Agramunt; J. Äystö; M. Bowry; J. A. Briz; R. Caballero-Folch; D. Cano-Ott; A. Cucoanes; V. V. Elomaa; T. Eronen; E. Estévez; G. F. Farrelly; A. R. Garcia; W. Gelletly; M. B. Gomez-Hornillos; V. Gorlychev; J. Hakala; A. Jokinen; M. D. Jordan; A. Kankainen; P. Karvonen; V. S. Kolhinen; F. G. Kondev; T. Martinez; E. Mendoza; F. Molina; I. Moore; A. B. Perez-Cerdán; Zs Podolyák; H. Penttilä; P. H. Regan; M. Reponen; J. Rissanen; B. Rubio; T. Shiba; A. A. Sonzogni; C. Weber

doi:10.1103/PhysRevLett.115.102503

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

A. A. Zakari-Issoufou, M. Fallot, A. Porta, A. Algora, J. L. Tain, E. Valencia, S. Rice, V. M. Bui, S. Cormon, M. Estienne, J. Agramunt, J. Äystö, M. Bowry, J. A. Briz, R. Caballero-Folch, D. Cano-Ott, A. Cucoanes, V. V. Elomaa, T. Eronen, E. EstévezG. F. Farrelly, A. R. Garcia, W. Gelletly, M. B. Gomez-Hornillos, V. Gorlychev, J. Hakala, A. Jokinen, M. D. Jordan, A. Kankainen, P. Karvonen, V. S. Kolhinen, F. G. Kondev, T. Martinez, E. Mendoza, F. Molina, I. Moore, A. B. Perez-Cerdán, Zs Podolyák, H. Penttilä, P. H. Regan, M. Reponen, J. Rissanen, B. Rubio, T. Shiba, A. A. Sonzogni, C. Weber

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Abstract

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. Rb92 makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied Rb92 decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.

Original language	English
Article number	102503
Journal	Physical Review Letters
Volume	115
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.115.102503 https://doi.org/10.1103/PhysRevLett.115.102503
Publication status	Published - 4 Sept 2015
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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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., Äystö, J., Bowry, M., Briz, J. A., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Elomaa, V. V., Eronen, T., ... Weber, C. (2015). Total Absorption Spectroscopy Study of Rb 92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape: A Major Contributor to Reactor Antineutrino Spectrum Shape. Physical Review Letters, 115(10), Article 102503. https://doi.org/10.1103/PhysRevLett.115.102503, https://doi.org/10.1103/PhysRevLett.115.102503

@article{f036070607ca4efda5f9cc58a6605c4e,

title = "Total Absorption Spectroscopy Study of Rb 92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape: A Major Contributor to Reactor Antineutrino Spectrum Shape",

abstract = "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. Rb92 makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied Rb92 decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.",

author = "Zakari-Issoufou, {A. A.} and M. Fallot and A. Porta and A. Algora and Tain, {J. L.} and E. Valencia and S. Rice and Bui, {V. M.} and S. Cormon and M. Estienne and J. Agramunt and J. {\"A}yst{\"o} and M. Bowry and Briz, {J. A.} and R. Caballero-Folch and D. Cano-Ott and A. Cucoanes and Elomaa, {V. V.} and T. Eronen and E. Est{\'e}vez and Farrelly, {G. F.} and Garcia, {A. R.} and W. Gelletly and Gomez-Hornillos, {M. B.} and V. Gorlychev and J. Hakala and A. Jokinen and Jordan, {M. D.} and A. Kankainen and P. Karvonen and Kolhinen, {V. S.} and Kondev, {F. G.} and T. Martinez and E. Mendoza and F. Molina and I. Moore and Perez-Cerd{\'a}n, {A. B.} and Zs Podoly{\'a}k and H. Penttil{\"a} and Regan, {P. H.} and M. Reponen and J. Rissanen and B. Rubio and T. Shiba and Sonzogni, {A. A.} and C. Weber",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society. {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = sep,

day = "4",

doi = "10.1103/PhysRevLett.115.102503",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

Zakari-Issoufou, AA, Fallot, M, Porta, A, Algora, A, Tain, JL, Valencia, E, Rice, S, Bui, VM, Cormon, S, Estienne, M, Agramunt, J, Äystö, J, Bowry, M, Briz, JA, Caballero-Folch, R, Cano-Ott, D, Cucoanes, A, Elomaa, VV, Eronen, T, Estévez, E, Farrelly, GF, Garcia, AR, Gelletly, W, Gomez-Hornillos, MB, Gorlychev, V, Hakala, J, Jokinen, A, Jordan, MD, Kankainen, A, Karvonen, P, Kolhinen, VS, Kondev, FG, Martinez, T, Mendoza, E, Molina, F, Moore, I, Perez-Cerdán, AB, Podolyák, Z, Penttilä, H, Regan, PH, Reponen, M, Rissanen, J, Rubio, B, Shiba, T, Sonzogni, AA & Weber, C 2015, 'Total Absorption Spectroscopy Study of Rb 92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape: A Major Contributor to Reactor Antineutrino Spectrum Shape', Physical Review Letters, vol. 115, no. 10, 102503. https://doi.org/10.1103/PhysRevLett.115.102503, https://doi.org/10.1103/PhysRevLett.115.102503

TY - JOUR

T1 - Total Absorption Spectroscopy Study of Rb 92 Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape

T2 - A Major Contributor to Reactor Antineutrino Spectrum Shape

AU - Zakari-Issoufou, A. A.

AU - Fallot, M.

AU - Porta, A.

AU - Algora, A.

AU - Tain, J. L.

AU - Valencia, E.

AU - Rice, S.

AU - Bui, V. M.

AU - Cormon, S.

AU - Estienne, M.

AU - Agramunt, J.

AU - Äystö, J.

AU - Bowry, M.

AU - Briz, J. A.

AU - Caballero-Folch, R.

AU - Cano-Ott, D.

AU - Cucoanes, A.

AU - Elomaa, V. V.

AU - Eronen, T.

AU - Estévez, E.

AU - Farrelly, G. F.

AU - Garcia, A. R.

AU - Gelletly, W.

AU - Gomez-Hornillos, M. B.

AU - Gorlychev, V.

AU - Hakala, J.

AU - Jokinen, A.

AU - Jordan, M. D.

AU - Kankainen, A.

AU - Karvonen, P.

AU - Kolhinen, V. S.

AU - Kondev, F. G.

AU - Martinez, T.

AU - Mendoza, E.

AU - Molina, F.

AU - Moore, I.

AU - Perez-Cerdán, A. B.

AU - Podolyák, Zs

AU - Penttilä, H.

AU - Regan, P. H.

AU - Reponen, M.

AU - Rissanen, J.

AU - Rubio, B.

AU - Shiba, T.

AU - Sonzogni, A. A.

AU - Weber, C.

PY - 2015/9/4

Y1 - 2015/9/4

N2 - 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. Rb92 makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied Rb92 decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.

AB - 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. Rb92 makes the dominant contribution to the reactor antineutrino spectrum in the 5-8 MeV range but its decay properties are in question. We have studied Rb92 decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed.

UR - http://www.scopus.com/inward/record.url?scp=84942133220&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.115.102503

DO - 10.1103/PhysRevLett.115.102503

M3 - Article

AN - SCOPUS:84942133220

SN - 0031-9007

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 102503

ER -

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

Abstract

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