Measurement of γγ widths of charmonium states

• المؤلفون الرئيسيون: CHEN, W., THULASIDAS, Manoj
• التنسيق: text
• اللغة: English
• منشور في: Institutional Knowledge at Singapore Management University 1990
• الموضوعات: Databases and Information Systems; Programming Languages and Compilers
• الوصول للمادة أونلاين: https://ink.library.smu.edu.sg/sis_research/5742

Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γγγ(ηc)=5.9+2.1−1.8±1.9 keV, and we have obtained 95% CL upper limits of Γγγ(Xc0)Γγγ(Xc2)