An Introduction to Halo Nuclei

Fusion reactions with the one-neutron halo nucleus15C

“…1. It consists of four 5x5 cm 2 Si surface barrier detectors subdivided into four quadrants surrounding the self-supporting 232 Th target (640 µg/cm 2 ). Two pairs of Si detectors are located at 180…”

“…The definition of a halo nucleus is still being debated, but at least three conditions are required [2]: (i) low separation energy of the valence particle (or particle cluster); (ii) a wave function that is in a low relative angular momentum state (preferably an s-wave); (iii) decoupling from the core. The nucleus 11 Li, a two-neutron halo nucleus, is a prime example.…”

“…For example, in Ref. [2] 11 Be, 15 C, 19 C and 23 O are listed as candidates, based mainly on the width of their momentum distributions measured in one-neutron removal reactions [3]. The latter two isotopes are located far away from the valley of stability and are currently not available with beam intensities sufficient to allow for studies of fusion reactions.…”

Analysis of deuteron breakup reactions for energies up to 100 MeV

“…Thus, we apply the Glauber model [7] to the calculation of proton stripping process. Up to now, the Glauber model has been widely used in analyses of projectile breakup of exotic and halo nuclei at intermediate energies [8][9][10]. Also there are some examples of d-induced reactions at intermediate energies above 40 MeV/nucleon in Refs.…”

Efeitos de deformação e cluster no estudo de espalhamento elástico dos núcleos ¹⁰B e ¹⁰C em alvo de ⁵⁸Ni

“…A colisões desses núcleos com alvos leves de Berílio, Carbono e Alumínio forneceu indícios de comportamentos anômalos de alguns deles. Tanihata fez um estudo sistemático utilizando feixes com isótopos do Hélio ( 3 He, 4 He, 6 He e 8 He), Lítio ( 6 Li, 7 Li, 8 Li, 9 Li e 11 Li) e Berílio ( 7 Be, 9 Be e 10 Be), produzidos a partir da fragmentação de um feixe primá-rio de 11 B, com exceção do 11 Li que foi produzido a partir do 20 Ne.…”