For the first time the astrophysical factor of the B-10(p, alpha(0)) Be-7 reaction has been measured over a wide energy range, from 5 keV to 1.5 MeV, via the Trojan horse method (THM) applied to the quasifree H-2(B-10, alpha Be-7) (n) reaction. Therefore, the S(E) factor has been recast into absolute units by scaling in the energy range 200 keV-1.2 MeV to a recent measurement using the activation method, leading to a normalization uncertainty of 4%. AnR-matrix fit of theTHMdatawas performed, to parametrize the S factor, obtain spectroscopic information on the populated resonances, and compare with other recent experiments. Finally, a new determination of the screening potential U-e has been obtained, Ue = 240 +/- 50 eV, with a much smaller error than our previous measurement.

Measurement of the B-10(p, alpha(0)) Be-7 cross section from 5 keV to 1.5 MeV in a single experiment using the Trojan horse method / Spitaleri, C; Puglia, Smr; La Cognata, M; Lamia, L; Cherubini, S; Cvetinovic, A; D'Agata, G; Gulino, M; Guardo, Gl; Indelicato, I; Pizzone, Rg; Rapisarda, Gg; Romano, S; Sergi, Ml; Sparta, R; Tudisco, S; Tumino, A; Del Santo MG, ; Carlin, N; Munhoz, Mg; Souza, Fa; de Toledo AS, ; Mukhamedzhanov, A; Broggini, C; Caciolli, A; Depalo, R; Menegazzo, R; Rigato, V; Lombardo, I; Dellaquila, D. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - 95:3(2017). [10.1103/PhysRevC.95.035801]

Measurement of the B-10(p, alpha(0)) Be-7 cross section from 5 keV to 1.5 MeV in a single experiment using the Trojan horse method

DELLAQUILA D
2017-01-01

Abstract

For the first time the astrophysical factor of the B-10(p, alpha(0)) Be-7 reaction has been measured over a wide energy range, from 5 keV to 1.5 MeV, via the Trojan horse method (THM) applied to the quasifree H-2(B-10, alpha Be-7) (n) reaction. Therefore, the S(E) factor has been recast into absolute units by scaling in the energy range 200 keV-1.2 MeV to a recent measurement using the activation method, leading to a normalization uncertainty of 4%. AnR-matrix fit of theTHMdatawas performed, to parametrize the S factor, obtain spectroscopic information on the populated resonances, and compare with other recent experiments. Finally, a new determination of the screening potential U-e has been obtained, Ue = 240 +/- 50 eV, with a much smaller error than our previous measurement.
2017
Measurement of the B-10(p, alpha(0)) Be-7 cross section from 5 keV to 1.5 MeV in a single experiment using the Trojan horse method / Spitaleri, C; Puglia, Smr; La Cognata, M; Lamia, L; Cherubini, S; Cvetinovic, A; D'Agata, G; Gulino, M; Guardo, Gl; Indelicato, I; Pizzone, Rg; Rapisarda, Gg; Romano, S; Sergi, Ml; Sparta, R; Tudisco, S; Tumino, A; Del Santo MG, ; Carlin, N; Munhoz, Mg; Souza, Fa; de Toledo AS, ; Mukhamedzhanov, A; Broggini, C; Caciolli, A; Depalo, R; Menegazzo, R; Rigato, V; Lombardo, I; Dellaquila, D. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - 95:3(2017). [10.1103/PhysRevC.95.035801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/239508
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