Alpha-Particle Transfer Reactions

Cluster structure of 13C probed via the 7Li(9Be,9Be+α) reaction

“…From the perspective of the excitation energy of the observed states the latter is most likely. However, we note that the angular distributions in [15] were measured at centre-of-mass energies approximately a factor of 2 smaller than in the present case, which may result in some variations of the distributions in [15] and those measured here.…”

“…J π E x J π from [9] proposed (MeV) in light nuclei, and the angular distributions for differing L f -values have been collated (in particular for L f = 0 and 2) by Bethge [15], together with those for the ( 6 Li,d) α-transfer reaction. Typically, the ( 7 Li,t) angular distributions are less oscillatory than those for the ( 6 Li,d) reaction, and are reminiscent of those that appear in Figure 3.…”

“…Typically, the ( 7 Li,t) angular distributions are less oscillatory than those for the ( 6 Li,d) reaction, and are reminiscent of those that appear in Figure 3. The reduced structure in the ( 7 Li,t) angular distributions is related to the presence of two transfer angular momentum values, L, for each L f [15,16], for L f >0. Nevertheless, the compilation of the α-transfer reaction in [15] indicates the sensitivity to the orbital angular momentum of the orbit into which the α-particle is transferred.…”

“…The reduced structure in the ( 7 Li,t) angular distributions is related to the presence of two transfer angular momentum values, L, for each L f [15,16], for L f >0. Nevertheless, the compilation of the α-transfer reaction in [15] indicates the sensitivity to the orbital angular momentum of the orbit into which the α-particle is transferred. These data indicate that the second maximum for L f =0 and L f =2 transfers appear at centre-of-mass angles 20 Figure 3), but lie within the region 29 • to 41 • .…”

Alpha Transfer Reactions in Light Nuclei

“…In 1970, when Klaus Bethge's article in Annual Review of Nuclear Science (Bethge 1970) summarizing the pioneering work appeared, alpha transfer reactions were already known to be a promising tool for nuclear spectro scopy. Most of the experiments done had been confined to target nuclei in the p or sd shell.…”