Nuclear Data Sheets for A=85

作者：Singh, Balraj^*; Chen, Jun

来源：Nuclear Data Sheets, 2014, 116: 1-162.

DOI：10.1016/j.nds.2014.01.001

• HIGH-SPIN STATES
• HALF-LIFE MEASUREMENTS
• GAMMA-RAY ENERGIES
• DELAYED-NEUTRON PRECURSORS
• ELECTRON-CAPTURE DECAY
• ELECTROMAGNETICALLY INDUCED TRANSPARENCY
• ISOCHRONOUS MASS-SPECTROMETRY
• LIVED FISSION-PRODUCTS
• T-Z=1/2 SERIES NUCLEI
• RB I-SPEKTRUMS

Evaluated experimental data are presented for 13 known nuclides of mass 85 (Zn, Ga, Ge, As, Se, Br, Kr, Rb, Sr, Y, Zr, Nb, Mo). Since the previous 1990 evaluation of A=85, Zn-85, Ga-85, Ge-85 and Mo-85 nuclides are newly added here. Excited state data for Se-85, Zr-85 have become available from radioactive decay and in-beam gamma-ray studies. New and improved high-spin data are available for Br-85, Kr-85, Rb-85, Y-85, Nb-85 and Mo-85. New, Se-85, Br-85, direct and precise measurement of atomic masses of Ge-85, As-85, Rb-85, Zr-85, Nb-85 and Mo-85 have greatly improved the landscape of beta decay-Q values and separation energies in this mass region. @@@ In spite of extensive experimental work on the isobaric nuclei of this mass chain several deficiencies remain. No excited states are known in Zn-85, Ga-85, As-85. Only a few excited state are assigned in Ge-85 from Ga-85 beta(-) decay. From radioactivity studies, the decay schemes of Zn-85 and Mo-85 are not known, and those for Ga-85, Ge-85, As-85 and 10.9-s isomer of Zr-85 are incomplete. Level lifetimes are not known for excited states in Se-85, Br-85, Nb-85 and Mo-85. The Tc-85 nuclide has not been detected in fragmentation experiments at GANIL, alluding to its unbound nature for proton emission. The Kr-85, Rb-85, Sr-85, and Y-85 nuclides remain the most extensively studied from many different reactions and decays. @@@ The evaluation of A=85 nuclides has been done after a span of 23 years, thus includes an extensive amount of new data for almost each nuclide. This work supersedes the data for A=85 nuclides presented in earlier full NDS publication by J. Tepel in 1980Te04 and a later one published in an update mode by H. Sievers in 1991Si01

• 出版日期2014-2