It is well-known that the charge-violating interaction is usually underestimated in nuclear many-body approaches,the so-called Nolen–Schiffer anomaly.In the framework of the Skyrme–Hartree–Fock(SHF)method,the effec...It is well-known that the charge-violating interaction is usually underestimated in nuclear many-body approaches,the so-called Nolen–Schiffer anomaly.In the framework of the Skyrme–Hartree–Fock(SHF)method,the effective two-body charge-symmetry breaking(CSB)and charge-independent breaking(CIB)interactions in nuclear medium are included.展开更多
Proton-andα-decay spectroscopy can provide valuable information on the nuclear structure and masses of neutron-de cient isotopes.In 1994,the proton drip line of Ac was reached by the detection of^(207)Ac which was id...Proton-andα-decay spectroscopy can provide valuable information on the nuclear structure and masses of neutron-de cient isotopes.In 1994,the proton drip line of Ac was reached by the detection of^(207)Ac which was identified via the-decay spectroscopy.Four years later,the neighboring proton-unbound nucleus ^(206)Ac was discov-ered.展开更多
Neutron-de cient nuclei around mid-shell at N-104 in the lead region provide many cases of shape coexistence and shape isomers^([1,2]).In order to study shape coexistence in this region,prompt and delayed-ray spectros...Neutron-de cient nuclei around mid-shell at N-104 in the lead region provide many cases of shape coexistence and shape isomers^([1,2]).In order to study shape coexistence in this region,prompt and delayed-ray spectroscopy of the^(187)Pb,^(183)Hg,^(188)Bi and^(188)Po nuclei produced by the fusion-evaporation reaction^(50)Cr+^(142)Nd→192Po^(*)has been performed at the Argonne Gas-Filled Analyzer.展开更多
The new thorium isotope ^(207)Th has been produced in the 5n evaporation channel of the fusion reaction ^(36)Ar+^(176)Hf.The 197-199 MeV ^(36)Ar^(11+)beam with a typical intensity of0.4 pμA was delivered by the Secto...The new thorium isotope ^(207)Th has been produced in the 5n evaporation channel of the fusion reaction ^(36)Ar+^(176)Hf.The 197-199 MeV ^(36)Ar^(11+)beam with a typical intensity of0.4 pμA was delivered by the Sector Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou(HIRFL),China.展开更多
文摘It is well-known that the charge-violating interaction is usually underestimated in nuclear many-body approaches,the so-called Nolen–Schiffer anomaly.In the framework of the Skyrme–Hartree–Fock(SHF)method,the effective two-body charge-symmetry breaking(CSB)and charge-independent breaking(CIB)interactions in nuclear medium are included.
基金Strategic Priority Research Program of Chinese Academy of Sciences(XDB34010000)Guangdong Major Project of Basic and Applied Basic Research(2021B0301030006)+1 种基金National Key R&D Program of China(2018YFA0404402)National Natural Science Foundation of China(U1932139,12105328,12035011,U2032135,11975279),Youth Innovation Promotion Association CAS(2020409),CAS Project for Young Scientists in Basic Research(YSBR-002)and Special Research Assistant Project of Chinese Academy of Sciences。
文摘Proton-andα-decay spectroscopy can provide valuable information on the nuclear structure and masses of neutron-de cient isotopes.In 1994,the proton drip line of Ac was reached by the detection of^(207)Ac which was identified via the-decay spectroscopy.Four years later,the neighboring proton-unbound nucleus ^(206)Ac was discov-ered.
基金Strategic Priority Research Program of Chinese Academy of Sciences(XDB34000000)National Key R&D Program of China(2018YFA0404402)+2 种基金National Natural Science Foundation of China(12135004,11635003,11961141004,11735017 and U2032138)Chinese Academy of Sciences Presidents International Fellowship Initiative(2020VMA0017)U.S.Department of Energy,Office of Nuclear Physics(DE-AC02-06CH11357,DE-FG02-94ER41041(UNC)and DE-FG02-97ER41033(TUNL))。
文摘Neutron-de cient nuclei around mid-shell at N-104 in the lead region provide many cases of shape coexistence and shape isomers^([1,2]).In order to study shape coexistence in this region,prompt and delayed-ray spectroscopy of the^(187)Pb,^(183)Hg,^(188)Bi and^(188)Po nuclei produced by the fusion-evaporation reaction^(50)Cr+^(142)Nd→192Po^(*)has been performed at the Argonne Gas-Filled Analyzer.
基金Strategic Priority Research Program of Chinese Academy of Sciences(XDB34010000)Guangdong Major Project of Basic and Applied Basic Research(2021B0301030006)+1 种基金National Key R&D Program of China(2018YFA0404402)Frontier Science Key Project of Chinese Academy of Sciences(ZDBS-LY-SLH017)。
文摘The new thorium isotope ^(207)Th has been produced in the 5n evaporation channel of the fusion reaction ^(36)Ar+^(176)Hf.The 197-199 MeV ^(36)Ar^(11+)beam with a typical intensity of0.4 pμA was delivered by the Sector Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou(HIRFL),China.
