Electronic Resource
Springer
Czechoslovak journal of physics
41 (1991), S. 1053-1059
ISSN:
1572-9486
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract It is shown that the contribution of diagrams with intermediate state vector mesons to the KL →π0 γγ amplitude, intensively discussed in literature in recent years, is close to zero provided that theSU(3) group breaking is taken into account. At the same time, the contribution of scalar mesons in the intermediate state is essential. The obtained estimates for Br(KL → π0γγ) conform with the recent experimental data Br(KL→π 0 γγ)=(2·1 ± 0·6)×10−6.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01598980
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