Loeher, B., Savran, D., Aumann, T., Beller, J., Bhike, M., Cooper, N., Derya, V., Duchene, M., Endres, J., Hennig, A., Humby, P., Isaak, J., Kelley, J. H., Knoerzer, M., Pietralla, N., Ponomarev, V. Yu., Romig, C., Scheck, M., Scheit, H., Silva, J., Tonchev, A. P., Tornow, W., Wamers, F., Weller, H., Werner, V. and Zilges, A. (2016). The decay pattern of the Pygmy Dipole Resonance of Ce-140. Phys. Lett. B, 756. S. 72 - 77. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1873-2445

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Abstract

The decay properties of the Pygmy Dipole Resonance (PDR) have been investigated in the semi-magic N=82 nucleus Ce-140 using a novel combination of nuclear resonance fluorescence and gamma-gamma coincidence techniques. Branching ratios for transitions to low-lying excited states are determined in a direct and model-independent way both for individual excited states and for excitation energy intervals. Comparison of the experimental results to microscopic calculations in the quasi-particle phonon model exhibits an excellent agreement, supporting the observation that the Pygmy Dipole Resonance couples to the ground state as well as to low-lying excited states. A 10% mixing of the PDR and the [2(1)(+) x PDR] is extracted. (C) 2016 The Authors. Published by Elsevier B.V.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Loeher, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Savran, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Aumann, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beller, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bhike, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cooper, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Derya, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Duchene, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Endres, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hennig, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Humby, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Isaak, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kelley, J. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knoerzer, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pietralla, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ponomarev, V. Yu.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Romig, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scheck, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scheit, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Silva, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tonchev, A. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tornow, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wamers, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weller, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Werner, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zilges, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-275805
DOI: 10.1016/j.physletb.2016.02.042
Journal or Publication Title: Phys. Lett. B
Volume: 756
Page Range: S. 72 - 77
Date: 2016
Publisher: ELSEVIER SCIENCE BV
Place of Publication: AMSTERDAM
ISSN: 1873-2445
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
GAMMA-RAY SPECTROSCOPY; INELASTIC-SCATTERING; NUCLEI; STATES; STRENGTH; ENERGY; EXCITATION; PARTICLE; SN-124; MODESMultiple languages
Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & FieldsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/27580

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