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arXiv 0803.0649nucl-ex
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安全能量下$^{68}$ Ni的库仑激发

Coulomb excitation of $^{68}$Ni at safe energies

N. Bree, I. Stefanescu, P. A. Butler, J. Cederkäll, T. Davinson, P. Delahaye, J. Eberth, D. Fedorov, V. N. Fedosseev, L. M. Fraile, S. Franchoo, G. Georgiev, K.… 展开作者

N. Bree, I. Stefanescu, P. A. Butler, J. Cederkäll, T. Davinson, P. Delahaye, J. Eberth, D. Fedorov, V. N. Fedosseev, L. M. Fraile, S. Franchoo, G. Georgiev, K. Gladnishki, M. Huyse, O. Ivanov, J. Iwanicki, J. Jolie, U. Köster, Th. Kröll, R. Krücken, B. A. Marsh, O. Niedermaier, P. Reiter, H. Scheit, D. Schwalm, T. Sieber, J. Van de Walle, P. Van Duppen, N. Warr, D. Weisshaar, F. Wenander, S. Zemlyanoy

摘要:

在安全能量下用库仑激发法测量了$^{68}$ Ni中的$B(E2;0^+\to2^+)$值。$^{68}$ Ni放射性核束在ISOLDE设施(CERN)后加速到2.9 MeV/u。发射的$γ$射线由MINIBALL检测器阵列检测。进行运动学粒子重建以增加测量的c.m.。激励截面的角度范围。所获得的2.8 $^{+1.2}_{-1.0}$ 10 $^2$ e $^2$ fm $^4$的值与在中能库仑激发下测量的值非常一致,证实了低的$0^+\to2^+$跃迁概率。

英文摘要:

The $B(E2;0^+\to2^+)$ value in $^{68}$Ni has been measured using Coulomb excitation at safe energies. The $^{68}$Ni radioactive beam was post-accelerated at the ISOLDE facility (CERN) to 2.9 MeV/u. The emitted $γ$ rays were detected by the MINIBALL detector array. A kinematic particle reconstruction was performed in order to increase the measured c.m. angular range of the excitation cross section. The obtained value of 2.8$^{+1.2}_{-1.0}$ 10$^2$ e$^2$fm$^4$ is in good agreement with the value measured at intermediate energy Coulomb excitation, confirming the low $0^+\to2^+$ transition probability.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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