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

Zs. Podolyák, C. M. Shand, Natasa Lalovic, J Gerl, Dirk Rudolph

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Sammanfattning

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.
Originalspråkengelska
Titel på värdpublikationThe 26th International Nuclear Physics Conference
UtgivningsortTrieste
FörlagProceedings of Science
Antal sidor8
Volym(INPC2016)
StatusPublished - 2017
EvenemangInternational Nuclear Physics Conference 2016 - Adelaide, Australien
Varaktighet: 2016 sep. 11 → 2016 sep. 16
Konferensnummer: 26
http://inpc2016.com/

Publikationsserier

NamnProceedings of Science
ISSN (tryckt)1824-8039

Konferens

KonferensInternational Nuclear Physics Conference 2016
Förkortad titelINPC 2016
Land/TerritoriumAustralien
OrtAdelaide
Period2016/09/11 → 2016/09/16
Internetadress

Ämnesklassifikation (UKÄ)

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