Recent results at LUNA, using a solid target

Journal Article · Wed Apr 26 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2200984· OSTI ID:20798596

Imbriani, G ^[1]; INFN, Naples ^[2]; Formicola, A ^[3]; Costantini, H ^[4]; INFN, Genova ^[2]

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1. Universita di Napoli 'Federico II', Dipartimento di Fisica, Naples (Italy)
2. Italy
3. Laboratori Nazionali del Gran Sasso dell INFN, Assergi (Italy)
4. Universita di Genova, Dipartimento di Fisica, Genova (Italy)

The determination of the astrophysical S-factor of the 14N(p,{gamma})15O reaction is of great interest because this reaction represents the bottleneck of the CNO cycle, which in turn has a large influence on the determination of the age of globular clusters and also plays a role in the estimation of the Solar neutrino fluxes. We have performed a new underground measurement (LUNA, Gran Sasso Laboratory, Italy) using a high resolution set-up, extending the investigated energy range down to Ecm=130 keV. This allowed a more reliable extrapolation to astrophysical energies, using an R-matrix fit to the decay to different final states in 15O.

• OSTI ID: 20798596
• Journal Information: AIP Conference Proceedings, Vol. 831, Issue 1; Conference: International conference on frontiers in nuclear structure, astrophysics, and reactions - FINUSTAR, Isle of Kos (Greece), 12-17 Sep 2005; Other Information: DOI: 10.1063/1.2200984; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAPTURE
CNO CYCLE
COSMIC NEUTRINOS
EXTRAPOLATION
ITALY
KEV RANGE
NITROGEN 14
NUCLEAR DECAY
OXYGEN 15
PROTONS
R MATRIX
RESOLUTION
SOLAR NEUTRINOS
SPECTROSCOPIC FACTORS
UNDERGROUND