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Journal articles

Isospin singlet (pn) pairing and quartetting contribution to the binding energy of nuclei

Abstract : Isospin singlet (pn) pairing as well as quartetting in nuclei is expected to arise near the symmetry line $N=Z$. Empirical values can be deduced from the nuclear binding energies applying special filters. Within the local density approximation, theoretical estimates for finite nuclei are obtained from results for the condensation energy of asymmetric nuclear matter. It is shown that the isospin singlet condensation energy drops down abruptly for |N-Z|~4 for medium nuclei in the region A=40. Furthermore, alpha-like quartetting and the influence of excitations are discussed.
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Submitted on : Wednesday, February 23, 2000 - 1:16:29 PM
Last modification on : Tuesday, November 30, 2021 - 8:32:04 AM

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G. Roepke, A. Schnell, P. Schuck, U. Lombardo. Isospin singlet (pn) pairing and quartetting contribution to the binding energy of nuclei. Physical Review C, American Physical Society, 2000, 61, 024306-(11 p.). ⟨10.1103/PhysRevC.61.024306⟩. ⟨in2p3-00003999⟩

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