Search for the decay KS--> π0γγ
Abstract
A search for the decay KS-->π0γγ has been made using the NA48 detector at the CERN SPS. Using data collected in 1999 during a 40-hour run with a high-intensity KS beam, an upper limit for the branching ratio BR(KS-->π0γγ,z>=0.2)<3.3×10-7 has been obtained at 90% confidence level, where z=mγγ2/mK02.
- Publication:
-
Physics Letters B
- Pub Date:
- March 2003
- DOI:
- 10.1016/S0370-2693(03)00104-7
- arXiv:
- arXiv:hep-ex/0212054
- Bibcode:
- 2003PhLB..556..105N
- Keywords:
-
- High Energy Physics - Experiment
- E-Print:
- 12 pages, 4 figures