6533b7d4fe1ef96bd1261d9e
RESEARCH PRODUCT
Penning-trap-assisted study of excitations in Br88 populated in β decay of Se88
Jukka KoponenM. CzerwińskiJ. KurpetaVasily SimutkinIain MooreAnu KankainenL. CaneteVeli KolhinenKamila SiejaKamila SiejaT. Rząca-urbanC. R. NobsAnnika VossHeikki PenttiläTommi EronenAri JokinenW. UrbanJani HakalaJ. WiśniewskiA. PłochockiJuuso ReinikainenIlkka PohjalainenI. M. MurraySami Rinta-antilasubject
Physics010308 nuclear & particles physicsExcited stateSpectroscopy methods0103 physical sciencesAtomic physics010306 general physicsPenning trapSpin (physics)01 natural sciencesdescription
Excited levels of $^{88}\mathrm{Br}$ populated in the $\ensuremath{\beta}$ decay of $^{88}\mathrm{Se}$ have been studied by means of $\ensuremath{\beta}\ensuremath{\gamma}$ and $\ensuremath{\gamma}\ensuremath{\gamma}$ spectroscopy methods. Neutron-rich parent $^{88}\mathrm{Se}$ nuclei were produced with proton-induced fission of $^{238}\mathrm{U}$ using the Ion Guide Isotope Separator On-Line (IGISOL) method and separated from contaminants using a dipole magnet and the coupled JYFLTRAP Penning trap at the Accelerator Laboratory of the University of Jyv\"askyl\"a. The level scheme of $^{88}\mathrm{Br}$ has been constructed and $logft$ values of levels were determined. The ground-state spin of $^{88}\mathrm{Br}$ is now firmly determined to be ${1}^{\ensuremath{-}}$. Low-energy levels in $^{88}\mathrm{Br}$ were interpreted as members of the $\ensuremath{\pi}{p}_{3/2}{(\ensuremath{\nu}{d}_{5/2})}^{3}, \ensuremath{\pi}{p}_{3/2}^{\ensuremath{-}1}{(\ensuremath{\nu}{d}_{5/2})}^{3}, \ensuremath{\pi}{f}_{5/2}^{\ensuremath{-}1}{(\ensuremath{\nu}{d}_{5/2})}^{3}$, and $\ensuremath{\pi}{g}_{9/2}\ensuremath{\nu}{g}_{7/2}$ multiplets. The shell-model calculations performed in this work reproduce well the experimental results.
year | journal | country | edition | language |
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2017-02-22 | Physical Review C |