|
|||||
|
|
Observation of the radiative transition ψ → γE(1420) |
|
| Authors: | DL Scharre GH Trilling GS Abrams MS Alam CA Blocker A Blondel AM Boyarski M Breidenbach DL Burke WC Carithers W Chinowsky MW Coles S Cooper WE Dieterle JB Dillon J Dorenbosch JM Dorfan MW Eaton H Zaccone |
| Institution: | 1. Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94305, USA;2. Lawrence Berkeley Laboratory and Department of Physics, University of California, Berkeley, CA 94720, USA |
| Abstract: | We have observed a radiative transition from the ψ to a state decaying into KSK±π?, with mass M = 1.44?0.015+0.01 GeV/c2 and width Γ = 0.05?0.02+0.03 GeV/c2. We tentatively identify this state as the E(1420). Assuming that this state is an isospin singlet, we have determined the branching fraction product . |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |