Average excited state lifetimes in 73Br Academic Article uri icon

abstract

  • Lifetimes in the region of 10-16 s have been measured for excited states between 4 and 6.6 MeV in 73Br. The states were produced by the +(EC) decay of a mass-separated source of 73Kr, and they decayed by the emission of protons or -rays; their lifetimes were measured by the particle X-ray coincidence technique. The data yield information on both -ray and proton partial widths as well as on the level density, a level density parameter-a = 13.7 MeV-1 is obtained. With the level widths so determined, a statistical model calculation yields excellent agreement with the delayed proton spectrum if a smooth gaussian -strength function is employed. It is concluded, however, that without the lifetime data, -strength function information could not have been reliably extracted. 1981.

published proceedings

  • Nuclear Physics A

author list (cited authors)

  • Asboe-Hansen, P., Hagberg, E., Hansen, P. G., Hardy, J. C., Jonson, B., & Mattsson, S.

citation count

  • 21

complete list of authors

  • Asboe-Hansen, P||Hagberg, E||Hansen, PG||Hardy, JC||Jonson, B||Mattsson, S

publication date

  • May 1981