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Search for CP violation in K0→3π0 decays

Abstract:

Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay KS→3π0 has been performed. From a fit to the lifetime distribution of about 4.9 million reconstructed K0/K̄0→3π0 decays, the CP violating amplitude η000=A(KS→3π0)/ A(KL→3π0) has been found to be Re(η000)=-0.002±0.011±0.015 and Im(η000)=-0.003±0. 013±0.017. This corresponds to an upper limit on the branching fraction of Br(KS→3π0)<7.4×10-7 at 90% confidence level. The result is ...

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Journal:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume:
610
Issue:
3-4
Pages:
165-176
Publication date:
2005-03-24
DOI:
ISSN:
0370-2693
URN:
uuid:ea585d72-4b08-447f-88b9-7f87c4753239
Source identifiers:
163024
Local pid:
pubs:163024
Language:
English

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