Coulomb Excitation of Odd-A Neutron-Rich Radioactive Beams Near $^{132}$Sn

Coulomb excitation of even-even neutron-rich nuclei near $^{132}$Sn has been a tremendous success at the Holifield Radioactive Ion Beam Facility (HRIBF). This paper reports the extension of such studies to odd-A neutron-rich nuclei using RIBs provided by HRIBF. By using a 400-MeV A=129 radioactive beam and $^{50}$Ti targets, excited states in $^{129}$Sb and $^{129}$Te were populated by Coulomb excitations. The HRIBF CLARION, Hyball, and a Bragg detector were used to detect gamma rays, charged particles, and to monitor the beam composition, respectfully. Doppler corrected (event-by-event) gamma rays were identified as mainly belonging to $^{129}$Sb and$^{ 129}$Te, the main components of the mixed beam. Data analysis resulted in B(E2) values for four transitions in $^{129}$Sb. These values were compared to B(E2)'s measured [1] in $^{123}$Sb, the heaviest odd-A Sb isotope for which B(E2) measurements exist prior to this study, and showed similar trends between $^{123}$Sb and $^{129}$Sb. Phenomena revealed in the comparison call for further theoretical investigations. [1] K.C. Jain, et al., Phys. Rev. \textbf{C40}, (1989) 2400.