Quenched Spectroscopic Factors for Low-Lying Positive Parity States in 31Mg | Zendy

N. Imai | Zendy; M. Mukai | Zendy; J. Cederkäll | Zendy; H. Aghai | Zendy; P. Golubev | Zendy; H. Johansson | Zendy; D. Kahl | Zendy; T. Teranishi | Zendy; Yutaka Watanabe | Zendy

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Quenched Spectroscopic Factors for Low-Lying Positive Parity States in 31Mg

Author(s) -

N. Imai,

M. Mukai,

J. Cederkäll,

H. Aghai,

P. Golubev,

H. Johansson,

D. Kahl,

T. Teranishi,

Yutaka Watanabe

Publication year - 2015

Publication title -

proceedings of the conference on advances in radioactive isotope science (aris2014)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.7566/jpscp.6.020005

Subject(s) - lying , parity (physics) , physics , atomic physics , medicine , radiology

The excitation function of the proton resonance elastic scattering with a ^30Mg beam of 2.92 MeV/nucleon was measured around 0 degrees in the laboratory frame. Three resonances corresponding to high excited states in ^31Al were successfully observed. They correspond to the isobaric analog resonances of the first three bound states in ^31Mg, which is considered to be located at the border of the island of inversion. An R-matrix analysis on the excitation function revealed that the spectroscopic factors for the first two positive parity resonances were quenched compared to those for other N=19 nuclei, ^35S and ^37Al, clearly indicating that the shell structure changes between ^30Mg and ^31Mg

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