# A determination of the CPT violation parameter Re$delta$ from the semileptonic decay of strangeness-tagged neutral kaons

A determination of the CPT violation parameter Re$delta$ from the semileptonic decay of strangeness-tagged neutral kaons - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 CPPM - Centre de Physique des Particules de Marseille 2 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse

Abstract : We have improved by two orders of magnitude the limit currently available for the CPT violation parameter ed . To this purpose we have analyzed the full sample of neutral-kaon decays to \semi\ recorded in the CPLEAR experiment, where the strangeness of the neutral kaons was tagged at production and decay time. An appropriate function of the measured decay rates, including information from the analysis of \pip\pim\ decay channel, gives directly ed . The result $ed = 3.0 \pm 3.3 \mathrm{{stat}} \pm 0.6 \mathrm{{syst}} \times 10^{-4}$ is compatible with zero. Values for the parameters $\imd$, $exm$ and $\imxp$ were also obtained.

Autor: A. Angelopoulos A. Apostolakis E. Aslanides - G. Backenstoss P. Bargassa O. Behnke A. Benelli V. Bertin - F. Blanc P. Bloch P. Ca

Fuente: https://hal.archives-ouvertes.fr/

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