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Title: First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT

Abstract

Here, this Letter reports the first scientific results from the observation of antineutrinos emitted by fission products of 235U at the High Flux Isotope Reactor. PROSPECT, the Precision Reactor Oscillation and Spectrum Experiment, consists of a segmented 4 ton 6Li-doped liquid scintillator detector covering a baseline range of 7–9 m from the reactor and operating under less than 1 m water equivalent overburden. Data collected during 33 live days of reactor operation at a nominal power of 85 MW yield a detection of 25 461 ± 283 (stat) inverse beta decays. Observation of reactor antineutrinos can be achieved in PROSPECT at 5σ statistical significance within 2 h of on-surface reactor-on data taking. A reactor model independent analysis of the inverse beta decay prompt energy spectrum as a function of baseline constrains significant portions of the previously allowed sterile neutrino oscillation parameter space at 95% confidence level and disfavors the best fit of the reactor antineutrino anomaly at 2.2σ confidence level.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
PROSPECT Collaboration 1; PROSPECT Collaboration
OSTI Identifier:
1488358
Alternate Identifier(s):
OSTI ID: 1491122; OSTI ID: 1510584; OSTI ID: 1525729
Report Number(s):
BNL-210866-2019-JAAM; LLNL-JRNL-752883
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
SC0012704; SC0016357; AC52-07NA27344; AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 25; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Ashenfelter, J., Balantekin, A. B., Baldenegro, C., Band, H. R., Bass, C. D., Bergeron, D. E., Berish, D., Bignell, L. J., Bowden, N. S., Bricco, J., Brodsky, J. P., Bryan, C. D., Bykadorova Telles, A., Cherwinka, J. J., Classen, T., Commeford, K., Conant, A. J., Cox, A. A., Davee, D., Dean, D., Deichert, G., Diwan, M. V., Dolinski, M. J., Erickson, A., Febbraro, M., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Gilje, K. E., Glenn, A., Goddard, B. W., Hackett, B. T., Han, K., Hans, S., Hansell, A. B., Heeger, K. M., Heffron, B., Insler, J., Jaffe, D. E., Ji, X., Jones, D. C., Koehler, K., Kyzylova, O., Lane, C. E., Langford, T. J., LaRosa, J., Littlejohn, B. R., Lopez, F., Lu, X., Martinez Caicedo, D. A., Matta, J. T., McKeown, R. D., Mendenhall, M. P., Miller, H. J., Minock, J. M., Mueller, P. E., Mumm, H. P., Napolitano, J., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Pushin, D. A., Qian, X., Romero-Romero, E., Rosero, R., Sarenac, D., Seilhan, B. S., Sharma, R., Surukuchi, P. T., Trinh, C., Tyra, M. A., Varner, R. L., Viren, B., Wagner, J. M., Wang, W., White, B., White, C., Wilhelmi, J., Wise, T., Yao, H., Yeh, M., Yen, Y. -R., Zhang, A., Zhang, C., Zhang, X., and Zhao, M. First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.251802.
Ashenfelter, J., Balantekin, A. B., Baldenegro, C., Band, H. R., Bass, C. D., Bergeron, D. E., Berish, D., Bignell, L. J., Bowden, N. S., Bricco, J., Brodsky, J. P., Bryan, C. D., Bykadorova Telles, A., Cherwinka, J. J., Classen, T., Commeford, K., Conant, A. J., Cox, A. A., Davee, D., Dean, D., Deichert, G., Diwan, M. V., Dolinski, M. J., Erickson, A., Febbraro, M., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Gilje, K. E., Glenn, A., Goddard, B. W., Hackett, B. T., Han, K., Hans, S., Hansell, A. B., Heeger, K. M., Heffron, B., Insler, J., Jaffe, D. E., Ji, X., Jones, D. C., Koehler, K., Kyzylova, O., Lane, C. E., Langford, T. J., LaRosa, J., Littlejohn, B. R., Lopez, F., Lu, X., Martinez Caicedo, D. A., Matta, J. T., McKeown, R. D., Mendenhall, M. P., Miller, H. J., Minock, J. M., Mueller, P. E., Mumm, H. P., Napolitano, J., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Pushin, D. A., Qian, X., Romero-Romero, E., Rosero, R., Sarenac, D., Seilhan, B. S., Sharma, R., Surukuchi, P. T., Trinh, C., Tyra, M. A., Varner, R. L., Viren, B., Wagner, J. M., Wang, W., White, B., White, C., Wilhelmi, J., Wise, T., Yao, H., Yeh, M., Yen, Y. -R., Zhang, A., Zhang, C., Zhang, X., & Zhao, M. First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT. United States. doi:10.1103/PhysRevLett.121.251802.
Ashenfelter, J., Balantekin, A. B., Baldenegro, C., Band, H. R., Bass, C. D., Bergeron, D. E., Berish, D., Bignell, L. J., Bowden, N. S., Bricco, J., Brodsky, J. P., Bryan, C. D., Bykadorova Telles, A., Cherwinka, J. J., Classen, T., Commeford, K., Conant, A. J., Cox, A. A., Davee, D., Dean, D., Deichert, G., Diwan, M. V., Dolinski, M. J., Erickson, A., Febbraro, M., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Gilje, K. E., Glenn, A., Goddard, B. W., Hackett, B. T., Han, K., Hans, S., Hansell, A. B., Heeger, K. M., Heffron, B., Insler, J., Jaffe, D. E., Ji, X., Jones, D. C., Koehler, K., Kyzylova, O., Lane, C. E., Langford, T. J., LaRosa, J., Littlejohn, B. R., Lopez, F., Lu, X., Martinez Caicedo, D. A., Matta, J. T., McKeown, R. D., Mendenhall, M. P., Miller, H. J., Minock, J. M., Mueller, P. E., Mumm, H. P., Napolitano, J., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Pushin, D. A., Qian, X., Romero-Romero, E., Rosero, R., Sarenac, D., Seilhan, B. S., Sharma, R., Surukuchi, P. T., Trinh, C., Tyra, M. A., Varner, R. L., Viren, B., Wagner, J. M., Wang, W., White, B., White, C., Wilhelmi, J., Wise, T., Yao, H., Yeh, M., Yen, Y. -R., Zhang, A., Zhang, C., Zhang, X., and Zhao, M. Wed . "First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT". United States. doi:10.1103/PhysRevLett.121.251802.
@article{osti_1488358,
title = {First Search for Short-Baseline Neutrino Oscillations at HFIR with PROSPECT},
author = {Ashenfelter, J. and Balantekin, A. B. and Baldenegro, C. and Band, H. R. and Bass, C. D. and Bergeron, D. E. and Berish, D. and Bignell, L. J. and Bowden, N. S. and Bricco, J. and Brodsky, J. P. and Bryan, C. D. and Bykadorova Telles, A. and Cherwinka, J. J. and Classen, T. and Commeford, K. and Conant, A. J. and Cox, A. A. and Davee, D. and Dean, D. and Deichert, G. and Diwan, M. V. and Dolinski, M. J. and Erickson, A. and Febbraro, M. and Foust, B. T. and Gaison, J. K. and Galindo-Uribarri, A. and Gilbert, C. E. and Gilje, K. E. and Glenn, A. and Goddard, B. W. and Hackett, B. T. and Han, K. and Hans, S. and Hansell, A. B. and Heeger, K. M. and Heffron, B. and Insler, J. and Jaffe, D. E. and Ji, X. and Jones, D. C. and Koehler, K. and Kyzylova, O. and Lane, C. E. and Langford, T. J. and LaRosa, J. and Littlejohn, B. R. and Lopez, F. and Lu, X. and Martinez Caicedo, D. A. and Matta, J. T. and McKeown, R. D. and Mendenhall, M. P. and Miller, H. J. and Minock, J. M. and Mueller, P. E. and Mumm, H. P. and Napolitano, J. and Neilson, R. and Nikkel, J. A. and Norcini, D. and Nour, S. and Pushin, D. A. and Qian, X. and Romero-Romero, E. and Rosero, R. and Sarenac, D. and Seilhan, B. S. and Sharma, R. and Surukuchi, P. T. and Trinh, C. and Tyra, M. A. and Varner, R. L. and Viren, B. and Wagner, J. M. and Wang, W. and White, B. and White, C. and Wilhelmi, J. and Wise, T. and Yao, H. and Yeh, M. and Yen, Y. -R. and Zhang, A. and Zhang, C. and Zhang, X. and Zhao, M.},
abstractNote = {Here, this Letter reports the first scientific results from the observation of antineutrinos emitted by fission products of 235U at the High Flux Isotope Reactor. PROSPECT, the Precision Reactor Oscillation and Spectrum Experiment, consists of a segmented 4 ton 6Li-doped liquid scintillator detector covering a baseline range of 7–9 m from the reactor and operating under less than 1 m water equivalent overburden. Data collected during 33 live days of reactor operation at a nominal power of 85 MW yield a detection of 25 461 ± 283 (stat) inverse beta decays. Observation of reactor antineutrinos can be achieved in PROSPECT at 5σ statistical significance within 2 h of on-surface reactor-on data taking. A reactor model independent analysis of the inverse beta decay prompt energy spectrum as a function of baseline constrains significant portions of the previously allowed sterile neutrino oscillation parameter space at 95% confidence level and disfavors the best fit of the reactor antineutrino anomaly at 2.2σ confidence level.},
doi = {10.1103/PhysRevLett.121.251802},
journal = {Physical Review Letters},
number = 25,
volume = 121,
place = {United States},
year = {2018},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.121.251802

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Cited by: 17 works
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Figures / Tables:

FIG. 1 FIG. 1: Detector time stability and segment-to-segment uniformity in energy (Erec), longitudinal position resolution (σz), and detection rate (R). Quantities are calculated for 214Po (black) and 215Po (blue) alpha decays and neutron-hydrogen captures uniformly distributed throughout the detector (magenta), and for 137Cs (red) source deployments. Reconstructed quantities are described inmore » more detail in the text. All quantities are shown relative to the average of all points in the data set. All error bars represent statistical uncertainties.« less

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.