出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a measurement of the mass and total width of the y(3770) meson. Results were obtained using data collected with the KEDR detector at the electron-positron accelerator complex VEPP-4M. We suggest a consistent way to describe the y(3770) lineshape which includes interference between resonant and non-resonant DD production. The results are : My(3770) = 3778:0+1:6 +0:6 1:5 0:7MeV; Gy(3770) = 22:4+3:9 +0:6 3:4 0:5MeV:
