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Featured researches published by K. Jon And.


Physics Letters B | 1997

An upper limit for the branching ratio of the decay K

A. Angelopoulos; A. Apostolakis; E. Aslanides; G. Backenstoss; O. Behnke; A. Benelli; V. Bertin; F. Blanc; P. Bloch; P. Carlson; J. Carvalho; E. Cawley; S. Charalambous; G. Chardin; M.B. Chertok; A. Cody; M. Danielsson; Marc Dejardin; J. Derre; A. Ealet; C. Eleftheriadis; I. Evangelou; L. Faravel; R. Ferreira Marques; W. Fetscher; M. Fidecaro; A. Filipčič; D. Francis; J. R. Fry; E. Gabathuler

A search for the decay KS → e+e− was performed within the framework of the CPLEAR experiment. Full event reconstruction together with e/π separation allowed powerful background rejection and high signal acceptance. The analysis of the complete set of data yields the result: BR(KS → e+e−) < 1.4 × 10−7 (90% CL), an improvement on the current experimental limit by a factor of 20.


International Symposium Particles, Strings and Cosmology 6 PASCOS 98 | 1998

_S \rightarrow e^+e^-

J. P. Miller; A. Angelopoulos; A. Apostolakis; E. Aslanides; G. Backenstoss; P. Bargassa; O. Behnke; A. Benelli; V. Bertin; F. Blanc; P. Bloch; P. Carlson; M. Carroll; J. Carvalho; E. Cawley; M.B. Chertok; M. Danielsson; M. Dejardin; J. Derre; A. Ealet; C. Eleftherjadis; L. Faravel; W. Fetscher; M. Fidecaro; A. Filipčič; D. Francis; J. R. Fry; E. Gabathuler; R. Gamet; H.-J. Gerber

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A. Angelopoulos

National and Kapodistrian University of Athens

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A. Apostolakis

National and Kapodistrian University of Athens

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A. Ealet

Aix-Marseille University

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F. Blanc

University of Fribourg

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L. Faravel

University of Fribourg

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