High spin structure of $^{117}$I

C.-B. Moon; T. Komatsubara; T. Shizuma; Y. Sasaki; H. Ishiyama; T. Jumatsu; K. Furuno

doi:doi:10.1007/s100500050251

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A 5, 13-16

Short note

High spin structure of ¹¹⁷I

C.-B. Moon¹ - T. Komatsubara² - T. Shizuma², Y. Sasaki² - H. Ishiyama¹ - T. Jumatsu¹ - K. Furuno²

¹ Department of Physics, Hoseo University, Chung-Nam 336-795, Korea
² Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-8577, Japan

Received: 1 March 1999 Communicated by B. Herskind

Abstract
High-spin states in ¹¹⁷I have been studied via the ¹⁰³Rh(¹⁸O, 4n) reaction at a beam energy of 85 MeV. Many deformed rotational bands built on the proton h_11/2, g_7/2, and g_9/2 orbitals have been identified. Among them, an unfavoured rotational band and a quasi-gamma band based on the h_11/2 state have been newly observed. Moreover, positive-parity states above $I^{\pi} = 35/2^+$ reported in the previous work have been rearranged. Several energetically favoured states have been assigned to noncollective oblate states based on various quasiparticle configurations with $\beta_2 \approx 0.18$ -0.19 and $\gamma = 60^{\circ}$ .