Breakdown of the Z=8 Shell Closure in Unbound O12 and its Mirror Symmetry

D. Suzuki et al.
Phys. Rev. Lett. 103, 152503 – Published 9 October 2009

Abstract

An excited state in the proton-rich unbound nucleus O12 was identified at 1.8(4) MeV via missing-mass spectroscopy with the O14(p,t) reaction at 51AMeV. The spin-parity of the state was determined to be 0+ or 2+ by comparing the measured differential cross sections with distorted-wave calculations. The lowered location of the excited state in O12 indicates the breakdown of the major shell closure at Z=8 near the proton drip line. This demonstrates the persistence of mirror symmetry in the disappearance of the magic number 8 between O12 and its mirror partner Be12.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 2 June 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.152503

©2009 American Physical Society

Authors & Affiliations

Click to Expand

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 103, Iss. 15 — 9 October 2009

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×