In-beam γ-ray spectroscopy and inclusive two-proton knockout cross section measurements at N ≈ 40

被引：87

作者：

Adrich, P. ^{[1
]}

Amthor, A. M. ^{[1
,2
]}

Bazin, D. ^{[1
]}

Bowen, M. D. ^{[1
,2
]}

Brown, B. A. ^{[1
,2
]}

Campbell, C. M. ^{[1
,2
]}

Cook, J. M. ^{[1
,2
]}

Gade, A. ^{[1
,2
]}

Galaviz, D. ^{[1
]}

Glasmacher, T. ^{[1
,2
]}

McDaniel, S. ^{[1
,2
]}

Miller, D. ^{[1
,2
]}

Obertelli, A. ^{[1
]}

Shimbara, Y. ^{[1
]}

Siwek, K. P. ^{[1
,2
]}

Tostevin, J. A. ^{[3
]}

Weisshaar, D. ^{[1
]}

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[3] Univ Surrey, Fac Engn & Phys Sci, Dept Phys, Surrey GU2 7XH, England

来源：

PHYSICAL REVIEW C | 2008年 / 77卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.77.054306

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In-beam gamma-ray spectroscopy of Fe-66,Fe-68 following intermediate-energy one- and two-proton knockout from cobalt and nickel secondary beams has been performed at the National Superconducting Cyclotron Laboratory. New transitions have been observed in Fe-66 and Fe-68. This is the first observation of gamma-ray transitions in Fe-68. In addition, Cr-64 was produced using the Be-9(Fe-66,Cr-64)X two-proton knockout reaction. An unexpectedly low inclusive cross section is observed for this reaction, an order of magnitude smaller than for the Be-9(Ni-68,Fe-66)X reaction. This observation is discussed in terms of a significant structural difference between Fe-66 and Cr-64 and considerable admixtures of nu(pf)(n-2) (g(9/2))(+2) configurations in the ground and excited states of Cr-64 at N = 40.

引用

页数：6

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