Proton and neutron alignments in negative-parity bands ofKr76

Autor:	M. A. Riley, J. X. Saladin, P. C. Womble, Samuel Tabor, J. Döring, R. A. Kaye, G. D. Johns
Rok vydání:	1995
Předmět:	Physics Nuclear and High Energy Physics Proton Parity (physics) Neutron Atomic physics Rotational frequency Quasi particles Excitation
Zdroj:	Physical Review C. 52:R2284-R2288
ISSN:	1089-490X 0556-2813
Popis:	High-spin states in {sup 76}Kr were studied using the {sup 54}Fe({sup 28}Si, {alpha} 2{ital p}) reaction at 120 MeV. Two new level sequences with negative parity decaying to known states in {sup 76}Kr have been identified from prompt {gamma}-{gamma} coincidences. The observed band crossings at a rotational frequency of about 0.55 MeV/{h_bar} can be understood as a {ital g}{sub 9/2} quasiproton alignment in bands built on two-quasineutron excitations at near-prolate deformation, in contrast to the {ital g}{sub 9/2} quasineutron alignment at about 0.75 MeV/{h_bar} in the previously known two-quasiproton negative-parity bands.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ab5a9979bbdd91295b03230b9f20b721 https://doi.org/10.1103/physrevc.52.r2284 Zobrazit plný text záznamu