Search for the decay KS → π0γγ
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 x 10-7 has been obtained at 90% confidence level, where...
Auteurs principaux: | , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Format: | Journal article |
Langue: | English |
Publié: |
2003
|