Transition probability from the ground to the first-excited 2+ state of even-even nuclides

Adopted values for the reduced electric quadrupole transition probability, B(E2)up arrow, from the ground state to the first-excited 2(+) state of even-even nuclides are given in Table I. Values of ir, the mean life of the 2(+) state; E, the energy; and B, the quadrupole deformation parameter, are also listed there. The ratio of B to the value expected from the single-particle model is presented. The intrinsic quadrupole moment, eo, is deduced from the B(E2)up arrow value. The product E x B(E2)up arrow is expressed as a percentage of the energy-weighted total and isoscalar E2 sum-rule strengths. Table II presents the data on which Table I is based, namely the experimental results for B(E2)up arrow values with quoted uncertainties. Information is also given on the quantity measured and the method used. The literature has been covered to November 2000. The adopted B(E2)up arrow values are compared in Table III with the values given by systematics and by Various theoretical models. Predictions of unmeasured B(E2)up arrow values are also given in Table III. (C) 2001 Academic Press.