A search for CP violation in Cabibbo-suppressed D± → K0 SK± and D± s → K0 Sπ± decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb-1, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be (Formula presented.) assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D± (s) → K0 SK± and D± (s) → K0 Sπ± gives the sum (Formula presented.). In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation.

Aaij, R., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2014). Search for CP violation in D± → Ks0 K± and Ds± → Ks0 π± decays. JOURNAL OF HIGH ENERGY PHYSICS, 2014(10), 1-18 [10.1007/JHEP10(2014)025].

Search for CP violation in D± → Ks0 K± and Ds± → Ks0 π± decays

Borsato, M;CALVI, MARTA;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;
2014

Abstract

A search for CP violation in Cabibbo-suppressed D± → K0 SK± and D± s → K0 Sπ± decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb-1, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be (Formula presented.) assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D± (s) → K0 SK± and D± (s) → K0 Sπ± gives the sum (Formula presented.). In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation.
Articolo in rivista - Articolo scientifico
CP violation; Hadron-Hadron Scattering; Nuclear and High Energy Physics
English
2014
2014
10
1
18
25
none
Aaij, R., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2014). Search for CP violation in D± → Ks0 K± and Ds± → Ks0 π± decays. JOURNAL OF HIGH ENERGY PHYSICS, 2014(10), 1-18 [10.1007/JHEP10(2014)025].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/88995
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