PhysRevD.102.062006.pdf (732.74 kB)
Search for hep solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory
Version 2 2023-06-12, 09:36
Version 1 2023-06-09, 22:16
journal contribution
posted on 2023-06-12, 09:36 authored by B Aharmim, S N Ahmed, A E Anthony, N Barros, E W Beier, A Bellerive, B Beltran, M Bergevin, S D Biller, E Blucher, R Bonventre, K Boudjemline, M G Boulay, B Cai, Simon PeetersSimon Peeters, SNO Collaboration, othersA search has been performed for neutrinos from two sources, the hep reaction in the solar pp fusion chain and the ?e component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino Observatory with a total exposure of 2.47 kton-years after fiducialization. The hep search is performed using both a single-bin counting analysis and a likelihood fit. We find a best-fit flux that is compatible with solar model predictions while remaining consistent with zero flux, and set a one-sided upper limit of fhep<30×103 cm-2 s-1 [90% credible interval (CI)]. No events are observed in the DSNB search region, and we set an improved upper bound on the ?e component of the DSNB flux of f?eDSNB<19 cm-2 s-1 (90% CI) in the energy range 22.9
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Physical Review DISSN
2470-0010Publisher
American Physical SocietyExternal DOI
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6Volume
102Page range
1-12Article number
a062006Department affiliated with
- Physics and Astronomy Publications
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- Yes
Legacy Posted Date
2020-11-24First Open Access (FOA) Date
2020-11-24First Compliant Deposit (FCD) Date
2020-11-23Usage metrics
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