Gamma-decay from dipole vibrations: Probe for nuclear properties

. A review of selected experimental works on the gamma-decay from the Giant and Pygmy Dipole Resonances is presented. The common feature of these experiments is that gamma-decay originates from dipole states populated using reactions induced by heavy ions. The focus is the investigation of dipole mo...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2019-12, Vol.55 (12), p.1-11, Article 233
Main Authors: Bracco, A., Camera, F., Crespi, F. C. L., Million, B., Wieland, O.
Format: Article
Language:English
Subjects:
Decay
Dipoles
Gamma rays
Giant
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Nuclear properties
Pairing Resonances and Related Topics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Projectiles
Pygmy
Review
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Summary:. A review of selected experimental works on the gamma-decay from the Giant and Pygmy Dipole Resonances is presented. The common feature of these experiments is that gamma-decay originates from dipole states populated using reactions induced by heavy ions. The focus is the investigation of dipole modes built on the ground and excited states. The major developments made during the years regarding the detection of high-energy gamma-rays are briefly discussed together with specific results concerning a chosen number of problems among those that were addressed by the theoretical works of P.F. Bortignon. They are: i) the dipole mode in the initial stages of reactions among heavy ions with different N / Z values for the target and projectile; ii) the problem of isospin symmetry in nuclei at finite temperature; iii) pygmy states far from stability; iv) the nature of the pygmy states.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2019-12887-x