Journal article
A TEST OF CHIRAL PERTURBATION-THEORY FROM THE MEASUREMENT OF THE DECAY KS-]GAMMA-GAMMA
- Abstract:
-
Data from NA31 experiment at CERN have been used to measure the decay KS → γγ. From 69 candidate events of the type K0 → γγ, 52 events can be attributed to KL → γγ and one event is expected from background processes. The ratio of the relative decay widths R = Γ(KS → γγ) Γ(KL → γγ) is measured to be R = 2.2 ± 1.0(stat.) ± 0.3(syst.) ± 0.2(ext.) where the external systematic error is due to the experimental uncertainty in the branching ratio of the decay KL → γγ. This translates into a branchin...
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- Publication status:
- Published
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- Publisher copy:
- 10.1016/0370-2693(95)00442-N
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Bibliographic Details
- Journal:
- PHYSICS LETTERS B
- Volume:
- 351
- Issue:
- 4
- Pages:
- 579-584
- Publication date:
- 1995-06-01
- DOI:
- ISSN:
-
0370-2693
- URN:
-
uuid:0c526fac-1c12-425f-864c-570dfdd06bcf
- Source identifiers:
-
7999
- Local pid:
- pubs:7999
Terms of use
- Copyright date:
- 1995
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