Study of the Rare Decay KL → π0γγ at KTeV
- Univ. of Arizona, Tucson, AZ (United States)
The authors study on the rare decay KL → π0γγ, measure aV, and branching ratio by analyzing 96, 97 and 99 data. The measurements were taken by KTeV at Fermi National Accelerator Laboratory. After all cuts, they have 1982 KL → π0γγ candidate. The background level is estimated as 30%. KL → π0γγ branching ratio is measured as (1.29 ± 0.03(stat) ± 0.04(sys)) x 10-6. By using D'Ambrosio's theory to fit aV, aV = -(-0.31 ± 0.05(stat) ± 0.07(sys)).
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 935239
- Report Number(s):
- FERMILAB-THESIS-2007-67; TRN: US0804158
- Country of Publication:
- United States
- Language:
- English
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