Search for the K S -> e e- decay with the KLOE detector - High Energy Physics - ExperimentReportar como inadecuado




Search for the K S -> e e- decay with the KLOE detector - High Energy Physics - Experiment - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We present the result of a direct search for the decay K S -> e+e-, obtainedwith a sample of e+e-> phi -> K S K L events produced at DAFNE, the Frascatiphi-factory, for an integrated luminosity of 1.9 fb^-1. The search has beenperformed using a pure K S beam tagged by the simultaneous detection of a K Linteraction in the calorimeter. Background rejection has been optimized byusing both kinematic and particle identification cuts. We find BRK S -> e+e-< 9x10^-9 at 90% CL, which improves by an order of magnitude on the previousbest limit.



Autor: The KLOE Collaboration: F. Ambrosino, A. Antonelli, M. Antonelli, F. Archilli, P. Beltrame, G. Bencivenni, S. Bertolucci, C. Bini

Fuente: https://arxiv.org/







Documentos relacionados