Abstract
The pairing vibration mode is associated to pairing correlations in nuclei [1] and there is rich information about its existence in even-even nuclei. It is connected to fluctuations of the pairing gap parameter Δ around its ground state value. The collectivity of this excitation mode is reflected in the cross section for the population of some 0+ and 2+ states in two like nucleon transfer reactions, which are strongly enhanced upon the two-particle estimate. To learn more about the underlying fermionic structure of a collective mode, one should study both its coupling with single-particle (fermionic) degrees of freedom, and the multiphonon states and their anharmonicities.
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© 1994 Springer Science+Business Media New York
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Oros, A.M. et al. (1994). Identification of the Two Pairing-Vibration Phonon ⊗ Particle Mode in 145Sm and Neighbours. In: Scheid, W., Sandulescu, A. (eds) Frontier Topics in Nuclear Physics. NATO ASI Series, vol 334. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2568-4_29
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DOI: https://doi.org/10.1007/978-1-4615-2568-4_29
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