Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation
Abstract
We study the Coulomb excitation of pygmy dipole resonances (PDR) in heavy ion reactions at 100 MeV/nucleon and above. The reactions Ni-68 + Au-197 and Ni-68 + Pb-208 are taken as practical examples. Our goal is to address the question of the influence of giant resonances on the PDR as the dynamics of the collision evolves. We show that the coupling to the giant resonances affects considerably the excitation probabilities of the PDR, a result that indicates the need of an improved theoretical treatment of the reaction dynamics at these bombarding energies. (C) 2016 The Authors. Published by Elsevier B.V.
- Authors:
- Publication Date:
- Research Org.:
- Texas A & M Univ., Commerce, TX (United States)
- Sponsoring Org.:
- USDOE; National Science Foundation (NSF); GSI Darmstadt; German Federal Ministry of Education and Research (BMBF)
- OSTI Identifier:
- 1250051
- Alternate Identifier(s):
- OSTI ID: 1280798
- Grant/Contract Number:
- FG02-08ER41533; 1415656
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 757 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; heavy-ion collisions; neutron-rich nuclei; strength function; dipole strength; isotopes; width; li-11
Citation Formats
Brady, N. S., Aumann, T., Bertulani, C. A., and Thomas, J. O. Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation. Netherlands: N. p., 2016.
Web. doi:10.1016/j.physletb.2016.04.038.
Brady, N. S., Aumann, T., Bertulani, C. A., & Thomas, J. O. Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation. Netherlands. https://doi.org/10.1016/j.physletb.2016.04.038
Brady, N. S., Aumann, T., Bertulani, C. A., and Thomas, J. O. Wed .
"Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation". Netherlands. https://doi.org/10.1016/j.physletb.2016.04.038.
@article{osti_1250051,
title = {Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation},
author = {Brady, N. S. and Aumann, T. and Bertulani, C. A. and Thomas, J. O.},
abstractNote = {We study the Coulomb excitation of pygmy dipole resonances (PDR) in heavy ion reactions at 100 MeV/nucleon and above. The reactions Ni-68 + Au-197 and Ni-68 + Pb-208 are taken as practical examples. Our goal is to address the question of the influence of giant resonances on the PDR as the dynamics of the collision evolves. We show that the coupling to the giant resonances affects considerably the excitation probabilities of the PDR, a result that indicates the need of an improved theoretical treatment of the reaction dynamics at these bombarding energies. (C) 2016 The Authors. Published by Elsevier B.V.},
doi = {10.1016/j.physletb.2016.04.038},
journal = {Physics Letters B},
number = C,
volume = 757,
place = {Netherlands},
year = {Wed Jun 01 00:00:00 EDT 2016},
month = {Wed Jun 01 00:00:00 EDT 2016}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.physletb.2016.04.038
https://doi.org/10.1016/j.physletb.2016.04.038
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Cited by: 5 works
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Figures / Tables:
Fig. 1: Strength function for the E1 RPA response in 68Ni calculated with formalism described in Ref. [21]. The calculation is performed for several Skyrme interactions, shown in the figure inset. The arrow shows the location of the pygmy resonance. (For interpretation of the references to color in this figuremore »
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Works referencing / citing this record:
Dynamical coupling of pygmy and giant resonances in relativistic Coulomb excitation
January 2017
- Brady, N. S.; Aumann, T.; Bertulani, C. A.
- GSI Repository, vp
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.