Speaker
Raffaele Buompane
(NA)
Description
7Be(p,g)8B still represents one of the major uncertainties on the predicted high energy component
of solar neutrino flux and it has also a direct impact on the 7Li abundance after the Big Bang Nucleosynthesis. Previous experiments producing data with useful precision were performed
in direct kinematics, using an intense proton beam on a radioactive 7Be target. The
complicated target stoichiometry and the deterioration under beam bombardment might possibly
be the origin of the discrepancies observed between the results of different measurements.
Inverse kinematics, i.e. a 7Be ion beam and a hydrogen target, would shed light on systematic
effects. Unfortunately, efforts attempted so far were limited by the low 7Be beam intensity. We
present here a new experiment, exploiting a high intensity 7Be beam in combination with a
windowless gas target and the recoil mass separator ERNA (European Recoil mass separator for
Nuclear Astrophysics) at CIRCE (Center for Isotopic Research on Cultural and Environmental
heritage), Caserta, Italy. Aim of the experiment is the measurement of the total reaction cross
section by means of the direct detection of the 8B recoils. The experimental setup as well as
results and their astrophysical impact will be illustrated.
Primary author
Raffaele Buompane
(NA)
Co-authors
Antonino Di Leva
(NA)
Antonio D'Onofrio
(NA)
David Rapagnani
(PG)
Detlef Rogalla
(RUBION, Ruhr-Universitat Bochum, Bochum, Germany)
Fabio Marzaioli
(Dipartimento di Matematica e Fisica,Universita degli Studi della Campania Luigi Vanvitelli, Caserta, Italia)
Filippo Terrasi
(NA)
Giancarlo Palumbo
(Dipartimento di Economia, Management Istituzioni Laboratorio Chimico-Merceologico Università degli Studi di Napoli Federico II, Napoli, Italia)
Giuseppe Porzio
(AC)
György Gyürky
(Institute for Nuclear Research (MTA ATOMKI), Debrecen, Hungary)
Jeremias Garcia Duarte
(NA)
Leandro Romero Gasques
(N)
Ms
Lizeth Morales Gallegos
(INFN PhD Student)
Lucio Gialanella
(NA)
Mario De Cesare
(NA)
Mauro Romoli
(NA)
Vincenzo Roca
(NA)
Zsolt Fülöp
(Institute for Nuclear Research (MTA ATOMKI), Debrecen, Hungary)
