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Characterization of vorticity in pygmy resonances and soft-dipole modes with two-nucleon transfer reactions
Ist Teil von
The European physical journal. A, Hadrons and nuclei, 2019-12, Vol.55 (12), p.1-11, Article 243
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2019
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
.
The properties of the two-quasiparticle-like soft
E
1-modes and Pygmy Dipole Resonances (PDR) have been and are systematically studied with the help of inelastic and electromagnetic experiments which essentially probe the particle-hole components of these vibrations. It is shown that further insight in their characterisation can be achieved with the help of two-nucleon transfer reactions, in particular concerning the particle-particle components of the modes, in terms of absolute differential cross sections which take properly into account successive and simultaneous transfer mechanisms corrected for non-orthogonality, able to reproduce the experimental findings at the 10% level. The process
9
Li(
t
,
p
)
11
Li(1
-
) is discussed, and absolute cross sections predicted.