@misc{oai:repo.qst.go.jp:00083433, author = {Pham, T.T. and Ideguchi, E. and Aoi, N. and Kohda, A. and Orlandi, R. and Nishio, K. and Makii, H. and Asai, M. and Suzaki, F. and Hirose, K. and Sato, T.K. and Tsukada, K. and Ito, Y. and Toshiyuki, Shizuma and Fang, Y. and M. Kumar Raju and J-G., Wang and Guo, S. and M. Liu and Zhou, X. and Imai, N. and Kitamura, N. and Michimasa, S. and Toh, Y. and Rykaczewski, K.P. and Ezold, J. and Cleve, S. and Roberto, J.B. and Boll, R.A. and Go, S. and Tanaka, M. and Andreyev, A. and Toshiyuki, Shizuma}, month = {Sep}, note = {The study of 254Es via Coulomb excitation gamma-ray spectroscopy has been performed at the JAEA-Tokai Tandem Laboratory using a 58Ni beam with an energy of 250 MeV. The detector system includes: 4 single-crystal HPGe detectors, 4 LaBr3(Ce) scintillators and 4 Clover type HPGe detectors and 2 CD silicon detectors placed backward and forward to the target for detecting scattered particle. A “safe” Coulomb excitation of 254Es was achieved for the first time to study its excited states. The 254Es gamma-ray spectrum was investigated by gating on the scattered 58Ni particle measured by the CD Si detectors. The gamma spectrum created after gain matching and Doppler shift correction was analyzed. From the gamma spectrum, several new transitions of 254Es were observed and they indicated the rotational band structure. The extracted data could help to extend the 254Es level scheme and determine its quadrupole deformation., 日本物理学会2021年秋季大会}, title = {Nuclear structure study of 254Es via Coulomb excitation gamma ray spectroscopy}, year = {2021} }