观测PHI(1020)--->OMEGA+PI0衰变
高能物理 - 实验
2008-11-26 v1
摘要
在VEPP-2M e^+e^-对撞机上，利用SND探测器在PHI(1020)介子共振附近研究了反应e^+e^- ---> OMEGA+PI0 ---> PI+PI- 2PI0。在截面能量依赖性中观测到的干涉图样与衰变PHI ---> OMEGA+PI0的存在一致，其分支比为B(PHI ---> OMEGA+PI0)=(4.8+1.9-1.7+-0.8)x10^{-5}。测量了衰变振幅的实部和虚部。PHI ---> OMEGA+PI0衰变是首次被观测到。
引用
@article{arxiv.hep-ex/9901020,
title = {Observation of the decay PHI(1020)--->OMEGA+PI0},
author = {M. N. Achasov and S. E. Baru and A. V. Berdyugin and A. V. Bozhenok and D. A. Bukin and S. V. Burdin and T. V. Dimova and S. I. Dolinsky and V. P. Druzhinin and M. S. Dubrovin and I. A. Gaponenko and V. B. Golubev and V. N. Ivanchenko and A. A. Korol and M. S. Korostelev and S. V. Koshuba and E. V. Pakhtusova and A. A. Polunin and E. E. Pyata and A. A. Salnikov and V. V. Shary and S. I. Serednyakov and Yu. M. Shatunov and V. A. Sidorov and A. N. Skrinsky and Z. K. Silagadze and Yu. S. Velikzhanin},
journal= {arXiv preprint arXiv:hep-ex/9901020},
year = {2008}
}
备注
6 pages, 5 figures, Will be published in Phys.Lett.B