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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/57585
Search for CP violation in D + → ϕπ + and D_s+to K_S^0{π+} decays
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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 D+s→K0Sπ+ decay is measured to be (0.61 ± 0.83 ± 0.14)%.
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ABELLAN BETETA, Carlos, et al. Search for CP violation in D + → ϕπ + and D_s+to K_S^0{π+} decays. Journal of High Energy Physics. 2013. Vol. 6, num. 112. ISSN 1126-6708. [consulted: 7 of August of 2026]. Available at: https://hdl.handle.net/2445/57585