PT Journal
AU Guastalla, Gea
   Algora, A
   Domingo-Pardo, C
TI Coulomb Excitation of Sn-104 and the Strength of the Sn-100 Shell Closure
SO Physical Review Letters
JI Phys. Rev. Lett.
PY 2013
BP 172501
EP 5pp
VL 110
IS 17
DI 10.1103/PhysRevLett.110.172501
LA English
AB A measurement of the reduced transition probability for the excitation of the ground state to the first 2(+) state in Sn-104 has been performed using relativistic Coulomb excitation at GSI. Sn-104 is the lightest isotope in the Sn chain for which this quantity has been measured. The result is a key point in the discussion of the evolution of nuclear structure in the proximity of the doubly magic nucleus Sn-100. The value B(E2; 0(+) -> 2(+)) = 0.10(4) e(2)b(2) is significantly lower than earlier results for Sn-106 and heavier isotopes. The result is well reproduced by shell model predictions and therefore indicates a robust N = Z = 50 shell closure.
ER