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Title: Possible coexistence of principal and tilted axis rotation in 103 Ag

Journal Article · · Physical Review. C, Nuclear Physics

The single-neutron configurations of several low-lying states in 22F have been determined from neutron-adding cross sections of a (d,p) reaction using a 21F radioactive beam in inverse kinematics. Final states in 22F consisting of a proton in the π0d5/2 orbital coupled to a neutron in either the ν0d5/2, ν1s1/2, or ν0d3/2 orbitals were observed up to an excitation energy of ~5 MeV. Spectroscopic factors and strengths were determined from the angular distribution of the cross sections using a distorted wave Born approximation method. The distribution of the ν0d5/2 and ν1s1/2 strength was well described by all USD effective shell model interactions, while only the more recent USDA/USDB interactions showed a marked improvement in describing the observed ν0d3/2 strength. Diagonal two-body matrix elements of the (0d5/2 )2 J=0–5 effective nucleon-nucleon interaction were extracted from the data and compared with previous determinations of the same matrix elements from particle-particle and hole-hole spectra, as well as the calculated results of the USDA interactions. No significant discrepancies were observed. Inspection of the monopole energies showed that an improved agreement between the different empirical matrix elements is found if a mass dependence is included.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science - Office of Nuclear Physics
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1484026
Journal Information:
Physical Review. C, Nuclear Physics, Vol. 67, Issue 1; ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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