Physics Letters B (Dec 2021)
Spectroscopy of the T = 2 mirror nuclei 48Fe/48Ti using mirrored knockout reactions
- R. Yajzey,
- M.A. Bentley,
- E.C. Simpson,
- T. Haylett,
- S. Uthayakumaar,
- D. Bazin,
- J. Belarge,
- P.C. Bender,
- P.J. Davies,
- B. Elman,
- A. Gade,
- H. Iwasaki,
- D. Kahl,
- N. Kobayashi,
- S.M. Lenzi,
- B. Longfellow,
- S.J. Lonsdale,
- E. Lunderberg,
- L. Morris,
- D.R. Napoli,
- X. Pereira-Lopez,
- F. Recchia,
- J.A. Tostevin,
- R. Wadsworth,
- D. Weisshaar
Affiliations
- R. Yajzey
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom; Department of Physics, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia; Corresponding authors.
- M.A. Bentley
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom; Corresponding authors.
- E.C. Simpson
- Research School of Physics, The Australian National University, Canberra ACT 2600, Australia
- T. Haylett
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- S. Uthayakumaar
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- D. Bazin
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- J. Belarge
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- P.C. Bender
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- P.J. Davies
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- B. Elman
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- A. Gade
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- H. Iwasaki
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- D. Kahl
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom; Extreme Light Infrastructure – Nuclear Physics, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
- N. Kobayashi
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- S.M. Lenzi
- Dipartimento di Fisica e Astronomia dell'Università and INFN, Sezione di Padova, I-35131 Padova, Italy
- B. Longfellow
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- S.J. Lonsdale
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
- E. Lunderberg
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- L. Morris
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- D.R. Napoli
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- X. Pereira-Lopez
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- F. Recchia
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Dipartimento di Fisica e Astronomia dell'Università and INFN, Sezione di Padova, I-35131 Padova, Italy
- J.A. Tostevin
- Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
- R. Wadsworth
- Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom
- D. Weisshaar
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- Journal volume & issue
-
Vol. 823
p. 136757
Abstract
A sequence of excited states has been established for the first time in the proton-rich nucleus 48Fe (Z=26, N=22). The technique of mirrored (i.e. analogue) one-nucleon knockout reactions was applied, in which the Tz= ±2 mirror pair, 48Fe/48Ti were populated via one-neutron/one-proton knockout from the secondary beams 49Fe/49V, respectively. The analogue properties of the reactions were used to help establish the new level scheme of 48Fe. The inclusive and exclusive cross sections were determined for the populated states. Large differences between the cross sections for the two mirrored reactions were observed and have been interpreted in terms of different degrees of binding of the mirror nuclei and in the context of the recent observations of suppression of spectroscopic strength as a function of nuclear binding, for knockout reactions on light solid targets. Mirror energy differences (MED) have been determined between the analogue T=2 states and compared with the shell model predictions. MED for this mirror pair, due to their location in the shell, are especially sensitive to excitations out of the f7/2 shell, and present a stringent test of the shell-model prescription.
