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

Zs Podolyak; C. M. Shand; N. Lalovic; J. Gerl; D. Rudolph; T. Alexander; P. Boutachkov; M. L. Cortes; M. Gorska; I. Kojouharov; N. Kurz; C. Louchart; E. Merchan; C. Michelagnoli; R. M. Perez-Vidal; S. Pietri; D. Ralet; M. Reese; H. Schaffner; Ch Stahl; H. Weick; F. Ameil; G. de Angelis; T. Arici; R. Carroll; Zs Dombradi; A. Gadea; P. Golubev; M. Lettmann; C. Lizarazo; D. Mahboub; H. Pai; Z. Patel; N. Pietralla; P. H. Regan; L. G. Sarmiento; O. Wieland; E. Wilson; B. Birkenbach; B. Bruyneel; I. Burrows; L. Charles; E. Clement; F. C. L. Crespi; D. M. Cullen; P. Desesquelles; J. Eberth; V. Gonzalez; T. Habermann; L. Harkness-Brennan; H. Hess; D. S. Judson; A. Jungclaus; W. Korten; M. Labiche; A. Maj; D. Mengoni; D. R. Napoli; A. Pullia; B. Quintana; G. Rainovski; P. Reiter; M. D. Salsac; E. Sanchis; J. J. Valiente Dobon

doi:10.1103/PhysRevLett.117.222302

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

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

Zs Podolyak, C. M. Shand, N. Lalovic, J. Gerl, D. Rudolph, T. Alexander, P. Boutachkov, M. L. Cortes, M. Gorska, I. Kojouharov, …

Physical review letters, Vol.117(22)

23/11/2016

DOI: https://doi.org/10.1103/PhysRevLett.117.222302

PMID: 27925748

Abstract

Physical Sciences

Physics

Physics, Multidisciplinary

Science & Technology

The Fe-54 nucleus was populated from a Fe-56 beam impinging on a Be target with an energy of E/A = 500 MeV. The internal decay via gamma-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 Fe-56 ground state. The isomeric state was produced in the low-momentum (-energy) tail of the parallel momentum (energy) distribution of Fe-54, suggesting that it was populated via the decay of the Delta(0) resonance into a proton. This process allows the population of fournucleon states, such as the observed isomer. Therefore, it is concluded that the observation of this 10(+) metastable state in Fe-54 is a consequence of the quark structure of the nucleons.

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Title: Role of the Delta Resonance in the Population of a Four-Nucleon State in the Fe-56 -> Fe-54 Reaction at Relativistic Energies
Creators - without role: Zs Podolyak - University of Surrey
C. M. Shand - University of Surrey
N. Lalovic - Lund University
J. Gerl - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
D. Rudolph - Lund University
T. Alexander - University of Surrey
P. Boutachkov - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
M. L. Cortes - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
M. Gorska - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
I. Kojouharov - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
N. Kurz - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
C. Louchart - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
E. Merchan - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
C. Michelagnoli - CEA DRF CNRS IN2P3, GANIL, F-14076 Caen 05, France
R. M. Perez-Vidal - Universitat de València
S. Pietri - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
D. Ralet - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
M. Reese - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
H. Schaffner - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
Ch Stahl - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
H. Weick - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
F. Ameil - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
G. de Angelis - Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy
T. Arici - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
R. Carroll - University of Surrey
Zs Dombradi - Hungarian Acad Sci, Inst Nucl Res, POB 51, H-4001 Debrecen, Hungary
A. Gadea - Universitat de València
P. Golubev - Lund University
M. Lettmann - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
C. Lizarazo - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
D. Mahboub - University of Ha'il
H. Pai - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
Z. Patel - University of Surrey
N. Pietralla - Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany
P. H. Regan - University of Surrey
L. G. Sarmiento - Lund University
O. Wieland - Mylan
E. Wilson - University of Surrey
B. Birkenbach - University of Cologne
B. Bruyneel - University of Paris-Saclay
I. Burrows - STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England
L. Charles - University of Strasbourg
E. Clement - Institut National de Physique Nucléaire et de Physique des Particules
F. C. L. Crespi - Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
D. M. Cullen - University of Manchester
P. Desesquelles - Institut National de Physique Nucléaire et de Physique des Particules
J. Eberth - University of Cologne
V. Gonzalez - Universitat de València
T. Habermann - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
L. Harkness-Brennan - University of Liverpool
H. Hess - University of Cologne
D. S. Judson - University of Liverpool
A. Jungclaus - CSIC, Inst Estruct Mat, E-28006 Madrid, Spain
W. Korten - University of Paris-Saclay
M. Labiche - STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England
A. Maj - Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland
D. Mengoni - University of Padua
D. R. Napoli - Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy
A. Pullia - Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
B. Quintana - Universidad de Salamanca
G. Rainovski - Sofia Univ St Kliment Ohridski, Fac Phys, Sofia 1164, Bulgaria
P. Reiter - University of Cologne
M. D. Salsac - University of Paris-Saclay
E. Sanchis - Universitat de València
J. J. Valiente Dobon - Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy
Publication Details: Physical review letters, Vol.117(22)
Publisher: Amer Physical Soc
Number of pages: 6
Grant note: ST/G000662/1; ST/L005794/1; ST/G000751/1 NuSTAR; ST/L005743/1; NuSTAR; ST/I504932/1; 2014 STFC Nuclear Physics CG; ST/G000751/1; ST/L005670/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) 05P15RD FN1; 05P12RDFN8 / German BMBF; Federal Ministry of Education & Research (BMBF) 262010 / European Community FP7-Capacities, ENSAR ST/G000751/1; NuSTAR; ST/L005670/1; ST/L005743/1; 2014 STFC Nuclear Physics CG; ST/I504932/1; ST/L005794/1; ST/J000159/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) FPA2014-57196-C5 / MINECO, Spain; Spanish Government STFC(UK); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) FEDER funds of the European Commission Swedish Research Council; Swedish Research Council for Health Working Life & Welfare (Forte); Swedish Research Council Formas PROMETEOII/2014/019 / Generalitat Valenciana, Spain; Center for Forestry Research & Experimentation (CIEF)
Identifiers: 9932185308331
Academic Unit: University Ha'il
Language: English
Resource Type: Journal article