Physics Letters B (Mar 2018)
Study of spectroscopic factors at N=29 using isobaric analogue resonances in inverse kinematics
- J. Bradt,
- Y. Ayyad,
- D. Bazin,
- W. Mittig,
- T. Ahn,
- S. Beceiro Novo,
- B.A. Brown,
- L. Carpenter,
- M. Cortesi,
- M.P. Kuchera,
- W.G. Lynch,
- S. Rost,
- N. Watwood,
- J. Yurkon,
- J. Barney,
- U. Datta,
- J. Estee,
- A. Gillibert,
- J. Manfredi,
- P. Morfouace,
- D. Pérez-Loureiro,
- E. Pollacco,
- J. Sammut,
- S. Sweany
Affiliations
- J. Bradt
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- Y. Ayyad
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- D. Bazin
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- W. Mittig
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- T. Ahn
- Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA
- S. Beceiro Novo
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- B.A. Brown
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- L. Carpenter
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- M. Cortesi
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- M.P. Kuchera
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- W.G. Lynch
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- S. Rost
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- N. Watwood
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- J. Yurkon
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- J. Barney
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- U. Datta
- Saha Institute of Nuclear Physics, Kolkata 700 064, India
- J. Estee
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- A. Gillibert
- CEA Irfu, Centre de Saclay, 91191 Gif-sur-Yvette, France
- J. Manfredi
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- P. Morfouace
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- D. Pérez-Loureiro
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- E. Pollacco
- CEA Irfu, Centre de Saclay, 91191 Gif-sur-Yvette, France
- J. Sammut
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- S. Sweany
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- DOI
- https://doi.org/10.1016/j.physletb.2018.01.015
- Journal volume & issue
-
Vol. 778,
no. C
pp. 155 – 160
Abstract
Shell closures and their associated magic numbers of nucleons provide a unique means for studying the structure of exotic nuclei far from stability. An experiment was recently performed at the National Superconducting Cyclotron Laboratory to measure resonant elastic proton scattering on 46Ar in inverse kinematics in the region containing isobaric analogue states of 47Ar, an N=29 nucleus with one neutron above the N=28 shell closure. Four candidate resonances were observed: one corresponding to the 3/2− ground state of 47Ar, another corresponding to its 1/2− first excited state, and two that likely correspond to states in the 47K compound nucleus. The observed properties of the ground state resonance were compatible with values from the literature, but a significantly lower spectroscopic factor was found for the 1/2− state resonance.
Keywords
- Spectroscopic factor
- Isobaric analogue state
- Resonant proton elastic scattering
- Shell closure
- Single-particle energy
