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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 orcid ; Gerl, J and Rudolph, Dirk LU orcid (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.
Please use this url to cite or link to this publication:
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
2023-04-07 17:18:54
@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/files/26640562/INPC2016_231_ZP.pdf}},
  volume       = {{(INPC2016)}},
  year         = {{2017}},
}