The phase of the ![]()
XRG_html\10052_2004_Article_2031_TeX2GIFEqu1.gif"" alt=""$\sigma \to \pi \pi$"" align=""middle"" border=""0""> amplitud
详细信息 查看全文
- 作者：D. V. Bugg
- 刊名：The European Physical Journal C - Particles and Fields
- 出版年：2004
- 出版时间：November 2004
- 年：2004
- 卷：37
- 期：4
- 页码：433-436
- 全文大小：190 KB
文摘
The phase variation of the s? pp\sigma \to \pi \pi amplitude is accurately determined as a function of mass from BES II data for J/Y? wp+ p-J/\Psi \to \omega \pi^ + \pi^-. The determination arises from interference with the strong b1(1235)pb_1(1235)\pi amplitude. The observed phase variation agrees within errors with that in pp\pi \pi elastic scattering.