Phys. Rev. Lett. 98, 172501 (2007) [4 pages]Sub-Barrier Coulomb Excitation of 110Sn and Its Implications for the 100Sn Shell ClosureReceived 23 January 2007; published 27 April 2007 The first excited 2+ state of the unstable isotope 110Sn has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2:0+→2+)=0.220±0.022e2b2, strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of 108Sn. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A=116 as 100Sn is approached. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.172501
DOI:
10.1103/PhysRevLett.98.172501
PACS:
23.20.Js, 21.60.Cs, 25.70.De, 27.60.+j
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.