2004/06/30 by A. N. Ivanov, M. Cargnelli, M. Faber +7
Physics and Astronomy · #Neutrino Physics Research #Nuclear physics research studies #Particle physics theoretical and experimental studies #astro-ph #hep-ph #nucl-th
paper · pdf · doi:10.1140/epja/i2004-10070-4
published as Eur.Phys.J.A23:1-6,2005 · 10 pages, no figures, Latex
arxiv created 2004/06/30 · openalex publication_date 2004/11/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
Within the Nambu-Jona-Lasinio model of light nuclei (the NNJL model), describing strong low-energy nuclear interactions, we compute the width of the energy level of the ground state of pionic deuterium. The theoretical value fits well the experimental data. Using the cross sections for the reactions nue + d -> p + p + e- and nue + d -> p + n + nue, computed in the NNJL model, and the experimental values of the events of these reactions, detected by the SNO Collaboration, we compute the boron neutrino fluxes. The theoretical values agree well with the experimental data and the theoretical predictions within the Standard Solar Model by Bahcall. We argue the applicability of the constraints on the astrophysical factor for the solar proton burning, imposed by helioseismology, to the width of the energy level of the ground state of pionic deuterium. We show that the experimental data on the width satisfy these constraints. This testifies an indirect measurement of the recommended value of the astrophysical factor for the solar proton burning in terrestrial laboratories in terms of the width of the energy level of the ground state of pionic deuterium.