Breakup of the proton halo nucleus B 8 at a sub-Coulomb energy
Palli K.
Pakou A.
Moro A.M.
O'Malley P.D.
Acosta L.
Sánchez A.M.
Souliotis G.
Aguilera E.F.
Andrade E.
Godos D.
Sgouros O.
Soukeras V.
Agodi C.
Bailey T.L.
Bardayan D.
Boomershine C.
Brodeur M.
Cappuzzello F.
Carmichael S.
Cavallaro M.
Dede S.
Dueñas J.A.
Henning J.
Lee K.
Porter W.S.
Rivero F.
Von Seeger W.
Physical Review C
Doi 10.1103/PhysRevC.111.024615
Volumen 111
2025-02-01
Citas: 0
© 2025 American Physical Society. We report inclusive breakup measurements of the proton halo nucleus B8 on a medium mass target, Zr90. The experiment was carried out at the TriSol facility of the University of Notre Dame at a beam energy of 26.5 MeV, corresponding to 90% of the Coulomb barrier. The data include angular distributions of the Be7 breakup fragment and of the elastically scattered B8 nuclei, allowing a good normalization of the Be7 yields. The latter are found to be in good agreement with the prediction of continuum-discretized coupled-channel calculations, thus pointing to the direct excitation to the continuum as the main production mechanism. The integrated breakup cross section, ?bu=170±40 mb, exhausts most of the total reaction cross section, indicating the dominance of direct processes below the barrier. A comparison of all existing breakup cross sections, on various targets at sub- and near-barrier energies, is also included.
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