Direct neutron decay of the isoscalar giant dipole resonance
Abstract
The direct and statistical neutron decay of the isoscalar giant dipole resonance has been studied in {sup 90}Zr, {sup 116}Sn, and {sup 208}Pb using the ({alpha}, {alpha}' n) reaction at a bombarding energy of 200 MeV. The spectra of fast decay neutrons populating valence hole states of the Z, N - 1 nuclei were analyzed, and estimates for the branching ratios were determined. The observation of the nucleon-direct-decay channels helped to select giant-resonance strengths and suppress the underlying background and continuum, which led to an indication of the existence of a new mode with L 2 character, presumably the overtone of the isoscalar giant quadrupole resonance.
- Authors:
-
- University of Groningen, Kernfysisch Versneller Instituut (Netherlands)
- Institute of Nuclear Research of the Hungarian Academy of Sciences (Debrecen) (Hungary)
- University of Notre Dame (United States)
- Osaka University, Research Center for Nuclear Physics (Japan)
- INFN (Italy)
- Publication Date:
- OSTI Identifier:
- 21075747
- Resource Type:
- Journal Article
- Journal Name:
- Physics of Atomic Nuclei
- Additional Journal Information:
- Journal Volume: 70; Journal Issue: 8; Other Information: DOI: 10.1134/S1063778807080145; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA DECAY; BRANCHING RATIO; DIPOLES; FAST NEUTRONS; GIANT RESONANCE; HOLES; LEAD 208; MEV RANGE 100-1000; NEUTRONS; NUCLEAR DECAY; QUADRUPOLES; SPECTRA; TIN 116; VALENCE; ZIRCONIUM 90
Citation Formats
Hunyadi, M, Berg, A M. van den, Davids, B, Harakeh, M N, Huu, M A. de, Woertche, H J, Csatlos, M, Gulyas, J, Krasznahorkay, A, Sohler, D, Garg, U, Fujiwara, M, and Blasi, N. Direct neutron decay of the isoscalar giant dipole resonance. United States: N. p., 2007.
Web. doi:10.1134/S1063778807080145.
Hunyadi, M, Berg, A M. van den, Davids, B, Harakeh, M N, Huu, M A. de, Woertche, H J, Csatlos, M, Gulyas, J, Krasznahorkay, A, Sohler, D, Garg, U, Fujiwara, M, & Blasi, N. Direct neutron decay of the isoscalar giant dipole resonance. United States. https://doi.org/10.1134/S1063778807080145
Hunyadi, M, Berg, A M. van den, Davids, B, Harakeh, M N, Huu, M A. de, Woertche, H J, Csatlos, M, Gulyas, J, Krasznahorkay, A, Sohler, D, Garg, U, Fujiwara, M, and Blasi, N. 2007.
"Direct neutron decay of the isoscalar giant dipole resonance". United States. https://doi.org/10.1134/S1063778807080145.
@article{osti_21075747,
title = {Direct neutron decay of the isoscalar giant dipole resonance},
author = {Hunyadi, M and Berg, A M. van den and Davids, B and Harakeh, M N and Huu, M A. de and Woertche, H J and Csatlos, M and Gulyas, J and Krasznahorkay, A and Sohler, D and Garg, U and Fujiwara, M and Blasi, N},
abstractNote = {The direct and statistical neutron decay of the isoscalar giant dipole resonance has been studied in {sup 90}Zr, {sup 116}Sn, and {sup 208}Pb using the ({alpha}, {alpha}' n) reaction at a bombarding energy of 200 MeV. The spectra of fast decay neutrons populating valence hole states of the Z, N - 1 nuclei were analyzed, and estimates for the branching ratios were determined. The observation of the nucleon-direct-decay channels helped to select giant-resonance strengths and suppress the underlying background and continuum, which led to an indication of the existence of a new mode with L 2 character, presumably the overtone of the isoscalar giant quadrupole resonance.},
doi = {10.1134/S1063778807080145},
url = {https://www.osti.gov/biblio/21075747},
journal = {Physics of Atomic Nuclei},
issn = {1063-7788},
number = 8,
volume = 70,
place = {United States},
year = {Wed Aug 15 00:00:00 EDT 2007},
month = {Wed Aug 15 00:00:00 EDT 2007}
}
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