New absolute cross section measurements of the 19F(p, α 0)16O and 19F(p, α π )16O* reactions at energies close to the Coulomb barrier are reported. The availability of high-resolution and low-noise energy spectra obtained in the experiment allowed to resolve the 6.05-6.13 MeV doublet in 16O. In particular, the α π channel cross section was measured in the poorly-known 1.3 MeV bombarding energy region, and the α 0 channel was investigated in the 1.6 MeV region, where a strong discrepancy between previous data-sets is present. A comprehensive R-matrix fit, including the new data, was performed and the structure of the states ranging in the 14-15 MeV region is discussed.
New measurements of the 19F(p,α0)16O and 19F(p,απ)16O* reaction cross sections close to the Coulomb barrier / Redigolo, L.; Lombardo, I.; Dell'Aquila, D.; Musumarra, A.; Pellegriti, M. G.; Russo, M.; Verde, G.; Vigilante, M.. - In: JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS. - ISSN 0954-3899. - 51:7(2024). [10.1088/1361-6471/ad4efe]
New measurements of the 19F(p,α0)16O and 19F(p,απ)16O* reaction cross sections close to the Coulomb barrier
Dell'Aquila D.;Vigilante M.
2024
Abstract
New absolute cross section measurements of the 19F(p, α 0)16O and 19F(p, α π )16O* reactions at energies close to the Coulomb barrier are reported. The availability of high-resolution and low-noise energy spectra obtained in the experiment allowed to resolve the 6.05-6.13 MeV doublet in 16O. In particular, the α π channel cross section was measured in the poorly-known 1.3 MeV bombarding energy region, and the α 0 channel was investigated in the 1.6 MeV region, where a strong discrepancy between previous data-sets is present. A comprehensive R-matrix fit, including the new data, was performed and the structure of the states ranging in the 14-15 MeV region is discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
