Speaker
Dr
Yuan Qiu
(Shanghai Jiao Tong University)
Description
Transcurium nuclei are believed to exhibit strong triaxial-octupole correlation with Y$_{32}$ shape by theory. Such an effect is expected to be strongest at Z = 98. Microscopically, around the Fermi surface of Z = 98 and N = 150 both protons and neutrons have available pairs of orbitals that could be strongly coupled by octupole interaction. Indeed, low-lying 2$^{-}$ states have been identified in a few corresponding even-even nuclei. In this presentation, we report on newly observed K$^{\pi}$ = 2$^{-}$ octupole band in $^{248}$Cf nuclei to high-spin states. The pair of bands are unearthed from data of $^{208}$Pb + $^{249}$Cf inelastic/transfer experiment performed at Argonne National Lab. Techniques and results will be discussed in the context of the physics of neighboring isotones and isotopes within the framework of RASM calculations.
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Primary author
Dr
Yuan Qiu
(Shanghai Jiao Tong University)
Co-authors
Prof.
Christopher Lister
(University of Massachusetts Lowell)
Prof.
Darek Seweryniak
(Argonne National Laboratory)
Prof.
Filip Kondev
(Argonne National Laboratory)
Prof.
Irshad Ahmad
(Argonne National Laboratory)
Prof.
John Greene
(Argonne National Laboratory)
Prof.
Mike Carpenter
(Argonne National Laboratory)
Prof.
Partha Chowdhury
(University of Massachusetts Lowell)
Prof.
Robert Janssens
(Argonne National Laboratory)
Dr
Sankha Hota
(Australian National University)
Prof.
Shaofei Zhu
(Argonne National Laboratory)
Prof.
Teng Lek Khoo
(Argonne National Laboratory)
Prof.
Torben Lauritsen
(Argonne National Laboratory)
