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Role Of The Delta Resonance In The Population Of Excited States In High-Energy Reactions

Podolyák, Zs. ; Shand, C. M. ; Lalovic, Natasa LU ; Gerl, J and Rudolph, Dirk LU (2017) International Nuclear Physics Conference 2016 In Proceedings of Science (INPC2016).
Abstract
The 54Fe nucleus was populated from a 56Fe beam with an energy of E=A=500 MeV. The internal decay of the 10+ metastable state via g-ray emission was observed. The structure of this isomeric state has to involve at least four unpaired nucleons, therefore it cannot be populated in a simple two-neutron removal reaction from the ground state of 56Fe, and we suggest that it was populated via the decay of the D0 resonance into a proton. This process allows the population of four-nucleon states, such as the observed isomer. Therefore, the population of the four-particle 10+ isomer in 54Fe is a consequence of the quark structure of the nucleons. The possible use of this reaction mechanism for producing exotic nuclei is discussed.
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author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
The 26th International Nuclear Physics Conference
series title
Proceedings of Science
volume
(INPC2016)
article number
231
pages
8 pages
publisher
Proceedings of Science
conference name
International Nuclear Physics Conference 2016
conference location
Adelaide, Australia
conference dates
2016-09-11 - 2016-09-16
external identifiers
  • scopus:85034616019
ISSN
1824-8039
project
FAIR-NUSTAR: HISPEC-DESPEC experiment & Super-FRS contributions
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
language
English
LU publication?
yes
id
0263950f-8468-43ff-b1a1-cc157908129c
date added to LUP
2017-06-09 23:33:50
date last changed
2020-04-28 16:45:19
@inproceedings{0263950f-8468-43ff-b1a1-cc157908129c,
  abstract     = {The 54Fe nucleus was populated from a 56Fe beam with an energy of E=A=500 MeV. The internal decay of the 10+ metastable state via g-ray emission was observed. The structure of this isomeric state has to involve at least four unpaired nucleons, therefore it cannot be populated in a simple two-neutron removal reaction from the ground state of 56Fe, and we suggest that it was populated via the decay of the D0 resonance into a proton. This process allows the population of four-nucleon states, such as the observed isomer. Therefore, the population of the four-particle 10+ isomer in 54Fe is a consequence of the quark structure of the nucleons. The possible use of this reaction mechanism for producing exotic nuclei is discussed.},
  author       = {Podolyák, Zs. and Shand, C. M. and Lalovic, Natasa and Gerl, J and Rudolph, Dirk},
  booktitle    = {The 26th International Nuclear Physics Conference},
  issn         = {1824-8039},
  language     = {eng},
  publisher    = {Proceedings of Science},
  series       = {Proceedings of Science},
  title        = {Role Of The Delta Resonance In The Population Of Excited States In High-Energy Reactions},
  url          = {https://lup.lub.lu.se/search/ws/files/26640562/INPC2016_231_ZP.pdf},
  volume       = {(INPC2016)},
  year         = {2017},
}