Structure and shape of ^{126, 128}Xe studied in Coulomb excitation measurements

The electromagnetic properties of ^{126, 128}Xe were studied in Coulomb excitation measurements, performed at the National Superconducting Cyclotron Laboratory, MSU. ^{126, 128}Xe nuclei were accelerated to 3.74 MeV/u and 3.81 MeV/u, respectively, and impinged on ¹⁹⁶Pt and ²⁰⁸Pb targets resulting in low-energy Coulomb excitation. Emitted gamma-rays and scattered nuclei were detected using the SeGA-JANUS setup. Transition and diagonal matrix elements were extracted from the data using the GOSIA code¹. The results for transition matrix elements are in agreement with previously measured values. Diagonal matrix elements for several excited states were newly determined and quadrupole moments were deduced. Preliminary results will be presented and compared to calculations within different theoretical models.

¹T. Czosnyka, D. Cline, and C. Y. Wu, Bull. Am. Phys. Soc. 28, 745 (1983)