Measurement of the ηc and Mesons in Two-photon Process at Belle

✍ Scribed by H. Nakazawa

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 273 KB
• Volume: 184
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/j.nuclphysbps.2008.09.168

✦ Synopsis

We have measured the mass, width and two-photon decay width of the ηc and η c mesons in two-photon collisions using 483 fb -1 of data collected with the Belle detector at the asymmetric-energy e + e -collider KEKB. Interference effects have been studied.