Universität zu Köln

Tamkas, M., Aciksoez, E., Isaak, J., Beck, T., Benouaret, N., Bhike, M., Boztosun, I., Durusoy, A., Gayer, U., Loeher, B., Pietralla, N., Savran, D., Tornow, W., Werner, V., Zilges, A. and Zweidinger, M. (2019). Low-lying dipole strength in the well-deformed nucleus Gd-156. Nucl. Phys. A, 987. S. 79 - 90. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1873-1554

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Abstract

The low-lying dipole strength of the deformed nucleus Gd-156 was investigated in the energy region from 3.1 MeV to 6.2 MeV using the method of nuclear resonance fluorescence (NRF). The NRF experiments were performed at the Darmstadt High Intensity Photon Setup (DHIPS) at Technische Universitat Darmstadt using unpolarized continuous-energy bremsstrahlung and at the High-Intensity gamma-ray Source (HI gamma S) at Duke University using quasi-monoenergetic and linearly-polarized photon beams. The combination of both experiments allows to separate electric and magnetic contributions and to determine absolute transition strengths for individual excited states as well as averaged quantities over narrow excitation energy regions. The investigated energy regions cover the region of the scissors mode as well as the low-energy part of the Pygmy Dipole Resonance. This is the first experiment where both of these excitation modes as well as the region in between has been successfully studied in a deformed heavy nucleus using the NRF method. (C) 2019 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Tamkas, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Aciksoez, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Isaak, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Beck, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Benouaret, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bhike, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Boztosun, I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Durusoy, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gayer, U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Loeher, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pietralla, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Savran, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tornow, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Werner, V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zilges, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zweidinger, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-136811
DOI:	10.1016/j.nuclphysa.2019.03.014
Journal or Publication Title:	Nucl. Phys. A
Volume:	987
Page Range:	S. 79 - 90
Date:	2019
Publisher:	ELSEVIER SCIENCE BV
Place of Publication:	AMSTERDAM
ISSN:	1873-1554
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MODES; PYGMY; EXCITATIONS Multiple languages Physics, Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13681