High angular momentum states in $\sp{79}$Rb were populated via the $\sp{63}$Cu($\sp{19}$F,2pn)$\sp{79}$Rb $\sp{65}$Cu($\sp{18}$O,4n)$\sp{79}$Rb reactions. The 65 MeV $\sp{19}$F and 65 MeV $\sp{18}$O beams were provided by the Florida State University FN Tandem accelerator. Prompt $\gamma$-$\gamma$ coincidences were measured for both reactions. Two additional $\gamma$ cascades have been assigned to $\sp{79}$Rb, including a new high-excitation structure dominated by dipole transitions. Firm spin assignments were made for the first time for a number of states by means of directional correlation ratios and an angular distribution measurement using the $\sp{63}$Cu($\sp{19}$F,2pn) reaction. The Doppler-shift attenuation method was used to determine lifetimes for states and their respective side-feeding times in both the yrast positive-parity and yrast negative-parity states. Transition quadrupole moments were deduced from the transition strengths and compared with those predicted by Woods-Saxon cranking calculations. The energy spacings and mixing ratios were compared with particle-rotor calculations. A recoil distance apparatus has also been developed as part of this project. Software has been written to analyze the results from a $\sp{\rm nat}$Ni($\sp{19}$F,2pn)$\sp{74}$Br reaction. The 62 MeV $\sp{19}$F beam was also provided by the FN Tandem accelerator. Singles events were taken for a number of drift distances. Lifetimes of states in $\sp{74}$Br have been measured and compared with previously known values with excellent agreement. / Source: Dissertation Abstracts International, Volume: 54-12, Section: B, page: 6268. / Major Professor: Samuel L. Tabor. / Thesis (Ph.D.)--The Florida State University, 1993.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_77072 |
| Contributors | Holcomb, Jimmy W., Florida State University |
| Source Sets | Florida State University |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | 131 p. |
| Rights | On campus use only. |
| Relation | Dissertation Abstracts International |
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