Nuclear data sheets update for A = 115

Pre-equilibrium and equilibrium emission of neutrons inCd114(α,xn)reactions

“…No interfering γ rays from these processes are observed, as expected. Theoretical calculations [17] also corroborate these findings. The maximum contribution predicted from CASCADE for the (α,αn) reaction is only 2.1 mb.…”

“…The decay modes of these states in residual nuclei are mainly through γ -ray transitions. It was observed earlier [15][16][17][18][19] that deexcitations of the nuclei occur mainly through groundstate transitions from the low-lying states and in even-even nuclei it occurs through 2 + → 0 + ground-state transitions. The transitions from the low-lying states can be used for studying the excitation functions of the (α,xn) channels.…”

“…Since the contributions of the γ rays have been measured at 55 • with the beam direction, the effect of angular distribution is insignificant because P 2 (cos θ ) at this angle is zero. in the measurement of (α,xn) cross sections have already been assigned [15][16][17][18][19] as follows: 407.2 keV for (α,2n), 1310.0 keV for (α,3n), 888.2 and 1300.0 keV for (α,4n), and 661 and 1168 keV for (α,5n). Cross sections of other channels such as (α, ypxn) or (α,αxn) are insignificant.…”

Crossing of the high-spin members of the and multiplets in

“…The decay mode and branching ratios were determined for 90 states of which 45 were new. All the states below 2 MeV which were previously known [6] have been observed. Angular correlation analysis allowed clear spin assignments in many cases.…”

Doppler-shift attenuation method lifetime measurements inSb115andSbBucurescu1, Căta-Danil2, Ilas3 et al. 1995Phys. Rev. C9010View full textAdd to dashboardCite

“…This picture, simple in principle, has never been tested in detail, however, since for most of these levels the electromagnetic transition probabilities are unknown. In this work we present the first measurements of lifetimes of the low-lying levels in Sb and "Sb. The existing information on the properties of these levels concerns mostly excitation energies and J values and comes mainly from studies of the (p, np) reaction and light-particle induced transfer reactions [5,6]. We perform DSA measurements in the (p, n) reaction, which, although providing rather low recoil velocities, has the advantage that it can be performed almost at the threshold and thus populate directly only the levels of interest.…”