University of Sussex
Browse
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

Download (732.74 kB)
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, others
A 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

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review D

ISSN

2470-0010

Publisher

American Physical Society

Issue

6

Volume

102

Page range

1-12

Article number

a062006

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2020-11-24

First Open Access (FOA) Date

2020-11-24

First Compliant Deposit (FCD) Date

2020-11-23

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC