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First measurement of the rate K0L → πμνγ

Abstract:
In a preliminary version of the NA48 experiment at the CERN SPS, in which an iron-scintillator sandwich calorimeter was used as a photon detector, the ratio of KL → πμνγ and KL → πμν decays was measured. The branching ratio BR(KL → πμνγ,E*γ ≥30 MeV)/(KL → πμν) is found to be (2.08 ± 0.17+0.16-0.21) × 10-3, where the first error is statistical and the second systematic. The result is in agreement with theoretical predictions. © 1998 Elsevier Science B.V.

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Journal:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume:
418
Issue:
3-4
Pages:
411-418
Publication date:
1998-02-05
DOI:
ISSN:
0370-2693
Language:
English
Pubs id:
pubs:345302
UUID:
uuid:11924fff-b9f4-4839-8462-fdebc1207f13
Local pid:
pubs:345302
Source identifiers:
345302
Deposit date:
2012-12-19

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