Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-01-07
J.Phys.G37:064022,2010
Physics
Nuclear Physics
Nuclear Theory
Scientific paper
10.1088/0954-3899/37/6/064022
The bare NN-potential, parametrized so as to reproduce the nuclear phase shifts leads to a sizable Cooper pair binding energy in nuclei along the stability valley. It is a much debated matter whether this value accounts for the "empirical" value of the pairing gap or whether a similarly important contribution arises from the exchange of collective vibrations between Cooper pair partners. In keeping with the fact that two-particle transfer reactions are the specific probe of pairing in nuclei, and that exotic halo nuclei like 11Li are extremely polarizable, we find that the recent studied reaction, namely 11Li+p -> 9Li+t, provides direct evidence of phonon mediated pairing in nuclei.
Barranco Francisco
Broglia Ricardo A.
Potel G.
Vigezzi Enrico
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