Abstract
The NA62 experiment at CERN SPS has been proposed with the purpose to measure the Branching Ratio for the ultrarare decay K+→ πvv. The photon veto system will have to provide a rejection better than 10-8 for π0 decays. The system is composed by several detectors. The larger ones constitute the Large Angle Veto (LAV) system, and will cover an angular region up to 50 mrad with respect to the incident beam. In order to optimize the cost/performance ratio we have tested three different technologies for the LAV system using a low energy electron beam at the LNF Beam Test Facility. A lead-scintillating fibers prototype has been built on purpose; a lead-scintillating tiles prototype was on loan by former CKM collaboration; a set of lead glass blocks from the OPAL barrel calorimeter have also been tested. We present preliminary results on detector performances and compare the three solutions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
