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  • Podolyák, Zs (author)

Role of the Δ Resonance in the Population of a Four-Nucleon State in the 56Fe → 54Fe Reaction at Relativistic Energies

  • Article/chapterEnglish2016

Publisher, publication year, extent ...

  • 2016
  • 5 s.
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:afcd1ed4-feea-4486-9c87-8b57b72c3a79
  • https://lup.lub.lu.se/record/afcd1ed4-feea-4486-9c87-8b57b72c3a79URI
  • https://doi.org/10.1103/PhysRevLett.117.222302DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • The Fe54 nucleus was populated from a 56Fe beam impinging on a Be target with an energy of E/A=500 MeV. The internal decay via γ-ray emission of the 10+ metastable state was observed. As the structure of this isomeric state has to involve at least four unpaired nucleons, it cannot be populated in a simple two-neutron removal reaction from the 56Fe ground state. The isomeric state was produced in the low-momentum (-energy) tail of the parallel momentum (energy) distribution of 54Fe, suggesting that it was populated via the decay of the Δ0 resonance into a proton. This process allows the population of four-nucleon states, such as the observed isomer. Therefore, it is concluded that the observation of this 10+ metastable state in 54Fe is a consequence of the quark structure of the nucleons.

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  • Shand, C. M. (author)
  • Lalovic, NatasaLund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)nucl-nli (author)
  • Gerl, J. (author)
  • Rudolph, D.Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-dru (author)
  • Alexander, T. (author)
  • Boutachkov, P. (author)
  • Cortés, M. L.Technical University of Darmstadt (author)
  • Górska, M. (author)
  • Kojouharov, I. (author)
  • Kurz, N. (author)
  • Louchart, C.Technical University of Darmstadt (author)
  • Merchán, E.Technical University of Darmstadt (author)
  • Michelagnoli, C. (author)
  • Pérez-Vidal, R. M.University of Valencia (author)
  • Pietri, S. (author)
  • Ralet, D.Technical University of Darmstadt (author)
  • Reese, M.Technical University of Darmstadt (author)
  • Schaffner, H. (author)
  • Stahl, ChTechnical University of Darmstadt (author)
  • Weick, H. (author)
  • Ameil, F. (author)
  • De Angelis, G. (author)
  • Arici, T.Justus Liebig University Giessen (author)
  • Carroll, R. (author)
  • Dombrádi, Zs (author)
  • Gadea, A.University of Valencia (author)
  • Golubev, P.Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kosu-pgo (author)
  • Lettmann, M.Technical University of Darmstadt (author)
  • Lizarazo, C.Technical University of Darmstadt (author)
  • Mahboub, D. (author)
  • Pai, H.Technical University of Darmstadt (author)
  • Patel, Z. (author)
  • Pietralla, N.Technical University of Darmstadt (author)
  • Regan, P. H. (author)
  • Sarmiento, L. G.Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)nucl-lsi (author)
  • Wieland, O.INFN Section of Milano (author)
  • Wilson, E. (author)
  • Birkenbach, B.University of Cologne (author)
  • Bruyneel, B. (author)
  • Burrows, I.Daresbury Laboratory (author)
  • Charles, L.University of Strasbourg (author)
  • Clément, E. (author)
  • Crespi, F. C L (author)
  • Cullen, D. M.University of Manchester (author)
  • Désesquelles, P. (author)
  • Eberth, J.University of Cologne (author)
  • González, V.University of Valencia (author)
  • Habermann, T.Technical University of Darmstadt (author)
  • Harkness-Brennan, L.University of Liverpool (author)
  • Hess, H.University of Cologne (author)
  • Judson, D. S.University of Liverpool (author)
  • Jungclaus, A. (author)
  • Korten, W. (author)
  • Labiche, M.Daresbury Laboratory (author)
  • Maj, A. (author)
  • Mengoni, D. (author)
  • Napoli, D. R. (author)
  • Pullia, A. (author)
  • Quintana, B. (author)
  • Rainovski, G. (author)
  • Reiter, P.University of Cologne (author)
  • Salsac, M. D. (author)
  • Sanchis, E.University of Valencia (author)
  • Valiente Dóbon, J. J. (author)
  • KärnfysikFysiska institutionen (creator_code:org_t)

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  • In:Physical Review Letters117:220031-9007

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