2-PROTON EMISSION FROM THE GROUND-STATE OF O-12

被引：163

作者：

KRYGER, RA

AZHARI, A

HELLSTROM, M

KELLEY, JH

KUBO, T

PFAFF, R

RAMAKRISHNAN, E

SHERRILL, BM

THOENNESSEN, M

YOKOYAMA, S

CHARITY, RJ

DEMPSEY, J

KIROV, A

ROBERTSON, N

SARANTITES, DG

SOBOTKA, LG

WINGER, JA

机构：

[1] MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824

[2] WASHINGTON UNIV,DEPT CHEM,ST LOUIS,MO 63130

[3] WASHINGTON UNIV,DEPT PHYS,ST LOUIS,MO 63130

[4] TEXAS A&M UNIV,INST CYCLOTRON,COLLEGE STN,TX 77843

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.74.860

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The three-body decay O12→2p+C10 was studied following production via single-neutron stripping from a radioactive O13 projectile. This is the first observation of two-proton emission from an unbound ground state where the one-proton emission channel is energetically closed beyond the lightest case of Be6. No evidence for He2 emission is seen, despite predictions for a large diproton branching ratio. An upper limit of 7% (95% C.L.) is established for this decay branch. The implications of the small diproton branching ratio observed here and seen previously in Be6 are discussed. © 1995 The American Physical Society.

引用

页码：860 / 863

页数：4

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