Study of ππ Production in Two-Photon Collisions at Belle

✍ Scribed by S. Uehara

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 468 KB
• Volume: 184
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/j.nuclphysbps.2008.10.030

✦ Synopsis

We have measured the cross section for π + π -production in two-photon collisions using a data sample with an integrated luminosity of 85.9 fb -1 collected with the Belle detector. The f0(980) resonance is observed as a peak in the energy spectrum of the cross section. We also report preliminary results for γγ → π 0 π 0 with two-photon center-of-mass energies ranging from 0.6 to 4.0 GeV, based on a 95 fb -1 data sample.