Observation of the 7 MeV excited spin-flip and non-spin-flip partners in 16 ΛO by γ -ray spectroscopy

Autor:	Osamu Hashimoto, David E. Alburger, S. H. Zhou, Y. Miura, H. Hotchi, Y. Okayasu, R. J. Sutter, L. Yuan, Adam Rusek, P. Pile, H. Akikawa, K. Tanida, Hiroyuki Tamura, J. Franz, S. Ajimura, Tomofumi Nagae, Morgan May, L. G. Tang, D. J. Millener, T. Hayakawa, Tadamitsu Kishimoto, Mifuyu Ukai, R. E. Chrien, G. B. Franklin, B. P. Quinn, Hirotaka Takahashi, K. Mizunuma, Satoshi Nakamura, Toshinobu Miyoshi, Shigeo Minami, Yoichi Sato, K. Imai, A. Banu, Kazuma Nakazawa
Rok vydání:	2007
Předmět:	Physics Nuclear and High Energy Physics Spin states Excited state Hadron Gamma spectroscopy Spin-flip Atomic physics Spectroscopy Excitation Doublet state
Zdroj:	The European Physical Journal A. 33:247-250
ISSN:	1434-601X 1434-6001
Popis:	We have observed three λ-ray transitions in Λ 16 O from both 7MeV excited spin-flip and non-spin-flip partners (2−, 1 2 − ) to the ground-state doublet (1 1 − , 0−) via the 16O(K −, π−) reaction. The 7MeV excitation energies of the spin-doublet members (2−, 1 2 − ) were determined to be 6784 ± 4 ± 4 keV and 6562 ± 1 ± 2 keV, respectively, and thus the spacing was obtained to be 222 ± 4 ± 5 keV. This is the first observation of the spin-flip state directly populated by the (K −, π−) reaction. Moreover, such directly populated spin-flip and non-spin-flip partners were resolved for the first time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::afe7c950750bc605bd56166df6ba8dba https://doi.org/10.1140/epja/i2007-10473-7 Zobrazit plný text záznamu Plný text ve formátu PDF