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Low-lying dipole strength in the well-deformed nucleus 156 Gd

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Tamkas, M; Açıksöz, E; Isaak, J; Beck, T; Benouaret, N; Bhike, M; Boztosun, I; Durusoy, A; Gayer, U; Krishichayan, ; Löher, B; Pietralla, N ...
Published in: Nuclear Physics A
July 1, 2019

The low-lying dipole strength of the deformed nucleus 156 Gd 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 Universität Darmstadt using unpolarized continuous-energy bremsstrahlung and at the High-Intensity γ-ray Source (HIγS)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.

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Published In

Nuclear Physics A

DOI

ISSN

0375-9474

Publication Date

July 1, 2019

Volume

987

Start / End Page

79 / 89

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Tamkas, M., Açıksöz, E., Isaak, J., Beck, T., Benouaret, N., Bhike, M., … Zweidinger, M. (2019). Low-lying dipole strength in the well-deformed nucleus 156 Gd. Nuclear Physics A, 987, 79–89. https://doi.org/10.1016/j.nuclphysa.2019.03.014
Tamkas, M., E. Açıksöz, J. Isaak, T. Beck, N. Benouaret, M. Bhike, I. Boztosun, et al. “Low-lying dipole strength in the well-deformed nucleus 156 Gd.” Nuclear Physics A 987 (July 1, 2019): 79–89. https://doi.org/10.1016/j.nuclphysa.2019.03.014.
Tamkas M, Açıksöz E, Isaak J, Beck T, Benouaret N, Bhike M, et al. Low-lying dipole strength in the well-deformed nucleus 156 Gd. Nuclear Physics A. 2019 Jul 1;987:79–89.
Tamkas, M., et al. “Low-lying dipole strength in the well-deformed nucleus 156 Gd.” Nuclear Physics A, vol. 987, July 2019, pp. 79–89. Scopus, doi:10.1016/j.nuclphysa.2019.03.014.
Tamkas M, Açıksöz E, Isaak J, Beck T, Benouaret N, Bhike M, Boztosun I, Durusoy A, Gayer U, Krishichayan, Löher B, Pietralla N, Savran D, Tornow W, Werner V, Zilges A, Zweidinger M. Low-lying dipole strength in the well-deformed nucleus 156 Gd. Nuclear Physics A. 2019 Jul 1;987:79–89.
Journal cover image

Published In

Nuclear Physics A

DOI

ISSN

0375-9474

Publication Date

July 1, 2019

Volume

987

Start / End Page

79 / 89

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences