A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ → K-K+π+, D0 → K-K+ and D0 → π-π+. We have measured the following CP asymmetry parameters: A(CP)(K-K+π+) = +0.006 ± 0.011 ± 0.005, A(CP)(K-K+) = -0.001 ± 0.022 ± 0.015 and A(CP)(π-π+) = +0.048 ± 0.039 ± 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements.

Link, J., Paolone, V., Reyes, M., Yager, P., Anjos, J., Bediaga, I., et al. (2000). Search for violation in D0 and D+ decays. PHYSICS LETTERS. SECTION B, 491(3-4), 232-239 [10.1016/S0370-2693(00)01039-X].

Search for violation in D0 and D+ decays

Gianini G;
2000

Abstract

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ → K-K+π+, D0 → K-K+ and D0 → π-π+. We have measured the following CP asymmetry parameters: A(CP)(K-K+π+) = +0.006 ± 0.011 ± 0.005, A(CP)(K-K+) = -0.001 ± 0.022 ± 0.015 and A(CP)(π-π+) = +0.048 ± 0.039 ± 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements.
Articolo in rivista - Articolo scientifico
article; atomic particle; calculation; mathematical analysis; statistics
English
2000
491
3-4
232
239
none
Link, J., Paolone, V., Reyes, M., Yager, P., Anjos, J., Bediaga, I., et al. (2000). Search for violation in D0 and D+ decays. PHYSICS LETTERS. SECTION B, 491(3-4), 232-239 [10.1016/S0370-2693(00)01039-X].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455858
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