Laboratori Nazionali del Gran Sasso

Assembled from 14 blocks · 1 evidence · 6 related

1. Story
2. The INFN underground laboratory beneath the Gran Sasso massif in Abruzzo, between L'Aquila and Teramo, with roughly 1.4 km of rock overhead. It housed Borexino, the liquid-scintillator detector that in 2020 reported the first detection of neutrinos from the CNO fusion cycle in the Sun - the secondary hydrogen-burning route that accounts for only about one per cent of solar energy output and had never before been observed directly. The measurement mattered beyond the Sun: the CNO cycle dominates in stars more massive than about 1.3 solar masses, so confirming it in the one star we can measure closely validates the assumed energy source of the majority of luminous stellar mass in the Galaxy.
3. Knowledge
4. Laboratori Nazionali del Gran Sasso
5. Neutrinos from the solar CNO cycle are detected
6. Connections
7. Neutrinos from the solar CNO cycle are detected
8. Neutrinos from the solar CNO cycle are detected
9. Laboratori Nazionali del Gran Sasso
10. Hydrogen fusion: the proton-proton chain and the CNO cycle
11. Laboratori Nazionali del Gran Sasso
12. The Sun
13. Evidence
14. Reports the first direct detection of solar neutrinos from the CNO cycle. Title and DOI were read from the publisher listing via search; the paper was not fetched, and the quoted ~1 per cent CNO share of solar energy output comes from accompanying institutional summaries rather than the paper.