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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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.
Original languageEnglish
Title of host publicationThe 26th International Nuclear Physics Conference
Place of PublicationTrieste
PublisherProceedings of Science
Number of pages8
Publication statusPublished - 2017
EventInternational Nuclear Physics Conference 2016 - Adelaide, Australia
Duration: 2016 Sept 112016 Sept 16
Conference number: 26

Publication series

NameProceedings of Science
ISSN (Print)1824-8039


ConferenceInternational Nuclear Physics Conference 2016
Abbreviated titleINPC 2016
Internet address

Subject classification (UKÄ)

  • Subatomic Physics


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