New Upper Limit For The Branching Ratio Of The Omega--]Equivalent-To-Gamma Radiative Decay

I. F. Albuquerque@f,N. F. Bondar@f,R. Carrigan,D. Chen, P. S. Cooper@f,Dai Lisheng@f, A. S. Denisov@f, A. V. Dobrovolsky@f,T. Dubbs,A. M. F. Endler, C. O. Escobar@f,M. Foucher, V. L. Golovtsov@f,H. Gottschalk,P. Gouffon@f, V. T. Grachev@f, A. V. Khanzadeev@f, M. A. Kubantsev@f, N. P. Kuropatkin@f, J. Lach@f,Lang Pengfei@f,Li Chengze@f,Li Yunshan@f,M. Luksys,J. R. P. Mahon, E. McCliment@f,A. Morelos, C. Newsom@f,M. C. Pommot Maia, V. M. Samsonov@f, V. A. Schegelsky@f,Shi Huanzhang@f, V. J. Smith@f,Tang Fukun@f, N. K. Terentyev@f, S. Timm@f, I. I. Tkatch@f, L. N. Uvarov@f, A. A. Vorobyov@f,Yan Jie@f,Zhao Wenheng@f,Zheng Shuchen@f,Zhong Yuanyuan@f

PHYSICAL REVIEW D（1994）

引用 6|浏览18

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摘要

We have searched for the rare hyperon radiative decay OMEGA- --> XI- gamma, using the Fermilab Proton Center 375 GeV/c charged hyperon beam. our measurement of the OMEGA- beam fraction at 13.6 m from production is (4.8 +/- 0.4)X 10(-5). No signal was found and we determine a new upper limit of 4.6 X 10(-4) at 90% C.L. for the OMEGA- --> XI- gamma branching ratio.

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