B8+Al27 scattering at low energies

Abstract

We present 8 B+ 27 Al elastic scattering angular distributions for the proton-halo nucleus 8 B at two energies above the Coulomb barrier, namely E lab = 15.3 MeV and 21.7 MeV. The experiments have been performed in the Radioactive Ion Beams in Brasil facility (RIBRAS) in São Paulo, and in the TwinSol facility at the University of Notre Dame, USA. The angular distributions were measured in the angular range of 15-80 degrees. Optical model and Continuum Discretized Coupled Channels calculations have been performed and the total reaction cross sections have been derived. A comparison of the 8 B+ 27 Al total reaction cross sections with similar systems including exotic, weakly and tightly bound projectiles impinging on the same target is presented.

Elastic scattering of Be7+Si28 at near-barrier energies

“…As can be seen from Fig. 9, the present results show very good compatibility with previous data: 6,7 Li + 28 Si [59], 6 He + 27 Al [60], 6 Li + 27 Al [61], 7 Be + 27 Al [37,62], and 8 B + 27 Al [63]. It should be noted that the first set of 7 Be + 27 Al data [37] present total reaction cross sections larger than the second set [62], the present values, and all other data with other projectiles.…”

“…corresponding to an energy in the center of mass, E c.m , reduced to the quantity x given by the equation [37,[59][60][61][62][63] are compared with the present data and the prediction from Ref. [54] for light targets, denoted by the solid black line.…”

Evidence of the effect of strong stripping channels on the dynamics of the Li8+Ni58 reaction

“…In the low-energy domain ( 10 MeV/nucleon), the projectile cluster and halo structure manifests as an enhancement in the total reaction cross section and a strong coupling between different reaction channels [15][16][17][18][19][20][21][22][23][24]. The identification of the reaction channels that effectively contribute to the total reaction cross section enhancement is still a challenge for both theory and experiment.…”

Elastic scattering of one-proton halo nucleus 17F on different mass targets using semi microscopic potentials

“…Further experiments have confirmed the presence of neutron halo in 11 Li and other neutron-rich nuclei [2]. Through the last two decades, experimental data for the proton halo in proton-rich nuclei like 8 B, 17 Ne, and 26,27,28 P have been reported in literature [3][4][5][6][7][8][9][10][11]. However, the amount of experimental data on the proton halo is relatively small compared to those on the neutron halo.…”