Alpha Decay of the Neutron-deficient Isotopes ^215,216U

【摘要】 The most neutron-deficient isotopes215,216 U were produced in the complete-fusion reaction ¹⁸⁰W(⁴⁰Ar, 4-5n)^215,216 U. Evaporation residues recoiled from the target were separated in-flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of correlated α-decay chains. Two α-decaying states were identified in ²¹⁶U, one for the ground state and the other for the isomeric state with 8+(πh_9/2πf_7/2) configuration. The α-decay properties for ^215,216U and the systematics of 8+isomeric state in N = 124, 126 isotones were investigated.更多还原

【Abstract】 The most neutron-deficient isotopes215,216 U were produced in the complete-fusion reaction ¹⁸⁰W(⁴⁰Ar, 4-5n)^215,216 U. Evaporation residues recoiled from the target were separated in-flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of correlated α-decay chains. Two α-decaying states were identified in ²¹⁶U, one for the ground state and the other for the isomeric state with 8+(πh_9/2πf_7/2) configuration. The α-decay properties for ^215,216U and the systematics of 8+isomeric state in N = 124, 126 isotones were investigated.更多还原