Nuclear structure with unitarily transformed two-body plus phenomenological three-body interactions [Elektronische Ressource] / von Anneke Günther

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Nuclear Structure withUnitarily Transformed Two-Body plusPhenomenological Three-Body InteractionsVom Fachbereich Physikder Technischen Universit¨at Darmstadtzur Erlangung des Gradeseines Doktors der Naturwissenschaften(Dr. rer. nat.)genehmigteDissertationvonDipl.-Phys. Anneke G¨untheraus Eckernf¨ordeDarmstadt 2011D17Referent: Prof. Dr. Robert RothKorreferent: Prof. Dr. Jochen WambachTag der Einreichung: 14.12.2010Tag der Pr¨ufung: 02.02.2011SummaryTheimportanceofthree-nucleonforcesforavarietyofnuclearstructurephenomenais apparent in various investigations. This thesis provides a first step towards theinclusion of realistic three-nucleon forces by studying simple phenomenological three-body interactions.TheUnitaryCorrelationOperatorMethod(UCOM)andtheSimilarityRenormaliza-tionGroup(SRG)providetwodifferentapproachestoderivesoftphase-shiftequivalentnucleon-nucleon (NN) interactions via unitary transformations. Although their moti-vations are quite different the NN interactions obtained with the two methods exhibitsome similarities.The application of the UCOM- or SRG-transformed Argonne V18 potential in theHartree-Fock (HF) approximation and including the second-order energy correctionsemerging from many-body perturbation theory (MBPT) reveals that the systematicsof experimental ground-state energies can be reproduced by some of the interactionsconsidering a series of closed-shell nuclei across the whole nuclear chart.

Sujets

• Physik

Informations

• Publié par: technischen_universitat_darmstadt
• Publié le: 01 janvier 2011
• Nombre de lectures: 17
• Langue: English
• Poids de l'ouvrage: 3 Mo

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