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The Giant Pairing Vibration in heavy nuclei Present status and future studies
Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, CNRS,IN2P3, F-91406 Orsay, France..
Fac Fis, Dept Fis Atom Mol & Nucl, Apartado 1065, E-41080 Seville, Spain..
KTH, Skolan för bioteknologi (BIO), Centra, Albanova VinnExcellence Center for Protein Technology, ProNova. KTH, Skolan för teknikvetenskap (SCI), Fysik, Kärnfysik.
Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA..
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2019 (Engelska)Ingår i: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 55, nr 12, artikel-id 245Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The Giant Pairing Vibration, a two-nucleon collective mode originating from the second shell above the Fermi surface, has long been predicted and expected to be strongly populated in two-nucleon transfer reactions with cross sections similar to those of the low-lying Pairing Vibration. Recent experiments have provided evidence for this mode in C-14,C- 15 but, despite sensitive studies, it has not been definitively identified in Sn or Pb nuclei where pairing correlations are known to play a crucial role near their ground states. In this paper we review the basic theoretical concepts of this "elusive" state and the status of experimental searches in heavy nuclei. We discuss the hindrance effects due to Q-value mismatch and the use of weakly-bound projectiles as a way to overcome the limitations of the (p,t) reactions. We also discuss the role of the continuum and conclude with some possible future developments.

Ort, förlag, år, upplaga, sidor
SPRINGER , 2019. Vol. 55, nr 12, artikel-id 245
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URN: urn:nbn:se:kth:diva-266281DOI: 10.1140/epja/i2019-12829-8ISI: 000500788700002Scopus ID: 2-s2.0-85075910852OAI: oai:DiVA.org:kth-266281DiVA, id: diva2:1383564
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QC 20200108

Tillgänglig från: 2020-01-08 Skapad: 2020-01-08 Senast uppdaterad: 2020-01-08Bibliografiskt granskad

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