Gamma–gamma tagging system for KLOE2 experiment

✍ Scribed by Flavio Archilli; Danilo Babusci; Davide Badoni; Matteo Beretta; Francesco Gonnella; Lorenzo Iafolla; Roberto Messi; Dario Moricciani; Lina Quintieri

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 259 KB
• Volume: 617
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2009.06.082

✦ Synopsis

þ e À collisions DAFNE KLOE g-g physics Tagging techniques a b s t r a c t

The gamma-gamma physics is a relevant part of the physics programme of KLOE2 project at DAFNE. In particular, there is a strong interest to measure the cross-section for the process gg-p 0 p 0 in the low energy region for its relevance in the context of the assessing the existence and nature of the sigma meson. In this talk we present the tagging system for the final leptons which we are developing. We will illustrate the characteristics and performance required for the detectors and the acquisition system. In particular, this system should be able to acquire data for each bunch crossing and therefore to a frequency of 368 MHz.