A search for CP violation in D + → φπ+ decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb-1 at a centre of mass energy of 7 TeV. The CP -violating asymmetry is measured to be (-0.04 ± 0.14 ± 0.14)% for candidates with K- K+ mass within 20 MeV/c 2 of the φ meson mass. A search for a CP -violating asymmetry that varies across the φ mass region of the D + → K - K + π + Dalitz plot is also performed, and no evidence for CP violation is found. In addition, the CP asymmetry in the Ds+ → Ks0 π+ decay is measured to be (0.61 ± 0.83 ± 0.14)%. © 2013 CERN for the benefit of the LHCb collaboration.

Aaij, R., Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Search for CP violation in D+ → φπ+ and D+s→ K0sπ+ decays. JOURNAL OF HIGH ENERGY PHYSICS, 2013(6) [10.1007/JHEP06(2013)112].

Search for CP violation in D+ → φπ+ and D+s→ K0sπ+ decays

CALVI, MARTA;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;PEREGO, DAVIDE LUIGI;PESSINA, GIANLUIGI EZIO;
2013

Abstract

A search for CP violation in D + → φπ+ decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb-1 at a centre of mass energy of 7 TeV. The CP -violating asymmetry is measured to be (-0.04 ± 0.14 ± 0.14)% for candidates with K- K+ mass within 20 MeV/c 2 of the φ meson mass. A search for a CP -violating asymmetry that varies across the φ mass region of the D + → K - K + π + Dalitz plot is also performed, and no evidence for CP violation is found. In addition, the CP asymmetry in the Ds+ → Ks0 π+ decay is measured to be (0.61 ± 0.83 ± 0.14)%. © 2013 CERN for the benefit of the LHCb collaboration.
Articolo in rivista - Articolo scientifico
Charm physics; CP violation; Hadron-Hadron Scattering; Nuclear and High Energy Physics
English
2013
2013
6
112
none
Aaij, R., Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Search for CP violation in D+ → φπ+ and D+s→ K0sπ+ decays. JOURNAL OF HIGH ENERGY PHYSICS, 2013(6) [10.1007/JHEP06(2013)112].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/74767
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