Search for the decay KS → π0γγ

Journal article

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 z = m2γγ/mKO2. © 2003 Published by Elsevier Science B.V.

Authors: Lai, A; Marras, D; Batley, R; Bevan, A; Dosanjh, R

• Journal: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
• Volume: 556
• Issue: 3-4
• Pages: 105-113
• Publication date: 2003-03-20
• DOI: 10.1016/S0370-2693(03)00104-7
• ISSN: 0370-2693
• Language: English
• Keywords: K mesons decays; Weak non-leptonic decays