Shape-driving effect of the proton 1/2[541] band in 171Ta

Autor:	S. X. Wen, C. Y. He, Yunzuo Liu, H. B. Sun, A. Pasternak, Z. M. Wang, Y. Zheng, X. G. Wu, L. H. Zhu, Z. L. Zhang, Y. Liu, X. Z. Cui, R. Meng, Hong-Yu Zhou, Furong Xu, Y. Wang, R. G. Ma, G. S. Li, C. X. Yang
Rok vydání:	2006
Předmět:	Physics Nuclear and High Energy Physics symbols.namesake Proton Attenuation Quadrupole Hadron symbols Nuclear fusion Woods–Saxon potential Atomic physics Deformation (meteorology) Doppler effect
Zdroj:	The European Physical Journal A. 27:137-141
ISSN:	1434-601X 1434-6001
DOI:	10.1140/epja/i2005-10196-9
Popis:	High-spin states in 171Ta were populated through the heavy-ion fusion-evaporation reaction 157Gd (19F, 5n)171Ta at 105MeV beam energy. Lifetimes of the levels of the πh 9/21/2[541] band have been measured by using the Doppler shift attenuation method. The transition quadrupole moments ( Q t) and the quadrupole deformation (β2) have been extracted. Both β2 and Q t values decrease slightly with increasing rotational frequency. The average β2 value of 0.26 is 18% larger than that of the πh 11/2 9/2[514] band. Total Routhian Surface calculations have been performed with the non-axial deformed Woods-Saxon potential and the predicted values of the quadrupole deformation β2 are in good agreement with that deduced from our lifetime measurement. The shape-driving effect is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::768121ee546906ff404e1a4fc3b7039f https://doi.org/10.1140/epja/i2005-10196-9 Zobrazit plný text záznamu Plný text ve formátu PDF