A new measurement of the ratio of the CP-violating amplitudes for KL → 2π0 and KL → π+π- is reported. The measured value for R = {divides}η00/η+-{divides}2 is 0.9878±0.0026±0.0030, where the first error is the statistical uncertainty and the second is the estimate of the systematic uncertainty. This gives a value for the parameter describing direct CP violation: Re ε{lunate}'/ε{lunate} = (2.0 ± 0.7) × 10-3.

Barr, G., Buchholz, P., Carosi, R., Coward, D., Cundy, D., Doble, N., et al. (1993). A new measurement of direct CP violation in the neutral kaon system. PHYSICS LETTERS. SECTION B, 317(1-2), 233-242 [10.1016/0370-2693(93)91599-I].

A new measurement of direct CP violation in the neutral kaon system

Carrozza, M. C.;
1993

Abstract

A new measurement of the ratio of the CP-violating amplitudes for KL → 2π0 and KL → π+π- is reported. The measured value for R = {divides}η00/η+-{divides}2 is 0.9878±0.0026±0.0030, where the first error is the statistical uncertainty and the second is the estimate of the systematic uncertainty. This gives a value for the parameter describing direct CP violation: Re ε{lunate}'/ε{lunate} = (2.0 ± 0.7) × 10-3.
Articolo in rivista - Articolo scientifico
neutral kaon system
English
1993
317
1-2
233
242
none
Barr, G., Buchholz, P., Carosi, R., Coward, D., Cundy, D., Doble, N., et al. (1993). A new measurement of direct CP violation in the neutral kaon system. PHYSICS LETTERS. SECTION B, 317(1-2), 233-242 [10.1016/0370-2693(93)91599-I].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/559325
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