Spin alignment of excited projectiles due to target spin-flip interactions

被引：7

作者：

Charity, R. J. ^{[1
]}

Elson, J. M. ^{[1
]}

Manfredi, J. ^{[1
]}

Shane, R. ^{[1
]}

Sobotka, L. G. ^{[1
]}

Chajecki, Z. ^{[2
,3
]}

Coupland, D. ^{[2
,3
]}

Iwasaki, H. ^{[2
,3
]}

Kilburn, M. ^{[2
,3
]}

Lee, Jenny ^{[2
,3
]}

Lynch, W. G. ^{[2
,3
]}

Sanetullaev, A. ^{[2
,3
]}

Tsang, M. B. ^{[2
,3
]}

Winkelbauer, J. ^{[2
,3
]}

Youngs, M. ^{[2
,3
]}

Marley, S. T. ^{[4
]}

Shetty, D. V. ^{[4
]}

Wuosmaa, A. H. ^{[4
]}

机构：

[1] Washington Univ, Dept Chem & Phys, St Louis, MO 63130 USA

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

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

[4] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA

来源：

PHYSICAL REVIEW C | 2015年 / 91卷 / 02期

基金：

美国国家科学基金会;

关键词：

HEAVY-ION REACTIONS; DEEP-INELASTIC REACTION; PROMPT GAMMA-RAYS; ANGULAR-CORRELATIONS; SPONTANEOUS FISSION; REACTION-MECHANISM; SCATTERING; FRAGMENTATION; POLARIZATION; STATES;

D O I：

10.1103/PhysRevC.91.024610

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：

The sequential breakup of E/A = 65.5-MeV Be-7 and E/A = 36.6-MeV Li-6 projectiles excited through inelastic interactions with Be-9 target nuclei has been studied. For events where the target nucleus remained in its ground state, significant alignment of the excited projectile's spin axis parallel or antiparallel to the beam direction was observed. This unusual spin alignment was found to be largely independent of the projectile's scattering angle and it was deduced that the target nucleus has a significant probability of changing its spin orientation during the interaction. It is proposed that the unusual spin alignment is a consequence of the molecular structure of the Be-9 nucleus.

引用

页数：12

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