Reactor antineutrino directionality measurement with the PROSPECT-I detector
Journal Article
·
· Physical Review. D.
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- Illinois Institute of Technology, Chicago, IL (United States); PROSPECT Collaboration. et al.
- University of Wisconsin
- Le Moyne College
- Illinois Institute of Technology
- Lawrence Livermore National Laboratory
- Oak Ridge National Laboratory
- United States Naval Academy
- Drexel University
- Georgia Institute of Technology
- Oak Ridge National Laboratory; University of Tennessee
- Brookhaven National Laboratory
- Boston University
- Susquehanna University
- Yale University
- Temple University
- University of Hawaii
- National Institute of Standards and Technology
The PROSPECT-I detector has several features that enable measurement of the direction of a compact neutrino source. Here, in this paper, a detailed report on the directional measurements made on electron antineutrinos emitted from the High Flux Isotope Reactor is presented. With an estimated true neutrino (reactor to detector) direction of φ = 40.8° ± 0.7° and θ= 98.6° ± 0.4°, the PROSPECT-I detector is able to reconstruct an average neutrino direction of φ = 39.4° ± 2.9° and θ = 97.6° ± 1.6°. This measurement is made with approximately 48 000 Inverse Beta Decay signal events and is the most precise directional reconstruction of reactor antineutrinos to date.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Hawaii, Honolulu, HI (United States)
- Sponsoring Organization:
- Heising-Simons Foundation; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- PROSPECT Collaboration
- Grant/Contract Number:
- AC05-00OR22725; AC52-07NA27344; SC0008347; SC0010504; SC0012704; SC0016060; SC0016357; SC0017660; SC0017815
- OSTI ID:
- 2525848
- Report Number(s):
- BNL--227632-2025-JAAM; LLNL--JRNL-865585
- Journal Information:
- Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 3 Vol. 111; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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