A search for CP violation using T-odd correlations is performed using the four-body D0 → K+K-π+π− decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb-1and 2.0 fb-1 recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D0decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2014). Search for CP violation using T-odd correlations in D0 → K+ K- π+ π- decays. JOURNAL OF HIGH ENERGY PHYSICS, 2014(10), 1-21 [10.1007/JHEP10(2014)005].

Search for CP violation using T-odd correlations in D0 → K+ K- π+ π- decays

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

Abstract

A search for CP violation using T-odd correlations is performed using the four-body D0 → K+K-π+π− decay, selected from semileptonic B decays. The data sample corresponds to integrated luminosities of 1.0 fb-1and 2.0 fb-1 recorded at the centre-of-mass energies of 7TeV and 8TeV, respectively. The CP-violating asymmetry (Formula presented.) is measured to be (0.18 ± 0.29 (stat) ± 0.04 (syst))%. Searches for CP violation in different regions of phase space of the four-body decay, and as a function of the D0decay time, are also presented. No significant deviation from the CP conservation hypothesis is found.
Articolo in rivista - Articolo scientifico
Charm physics; CP violation; Flavor physics; Hadron-Hadron Scattering; Nuclear and High Energy Physics
English
2014
2014
10
1
21
5
none
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2014). Search for CP violation using T-odd correlations in D0 → K+ K- π+ π- decays. JOURNAL OF HIGH ENERGY PHYSICS, 2014(10), 1-21 [10.1007/JHEP10(2014)005].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/89340
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