2006/02/28 by Borexino collaboration, The Borexino Collaboration, M. Balata
Engineering · Physics and Astronomy · #Atomic and Subatomic Physics Research #Borexino #Electron neutrino #Engineering #Environmental science #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear engineering #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Solar neutrino #hep-ex
paper · pdf · doi:10.1140/epjc/s2006-02560-4
published as Eur.Phys.J.C47:21-30,2006 · 10 pages, 9 figures, 5 tables
arxiv created 2006/05/10 · openalex publication_date 2006/05/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Electron antineutrino interactions above the inverse beta decay energy of protons (Eνe>1.8) where looked for with the Borexino Counting Test Facility (CTF). One candidate event survived after rejection of background, which included muon-induced neutrons and random coincidences. An upper limit on the solar νe flux, assumed having the 8B solar neutrino energy spectrum, of 1.1×105 cm-2~s-1 (90% C.L.) was set with a 7.8 ton × year exposure. This upper limit corresponds to a solar neutrino transition probability, νe → νe, of 0.02 (90% C.L.). Predictions for antineutrino detection with Borexino, including geoneutrinos, are discussed on the basis of background measurements performed with the CTF.