ar X iv : 0 80 7 . 01 48 v 1 [ he p - ex ] 1 J ul 2 00 8 Measurement of CP asymmetry in Cabibbo suppressed D 0 decays Belle Collaboration
نویسندگان
چکیده
We measure the CP -violating asymmetries in decays to the D → KK and D → ππ CP eigenstates using 540 fb of data collected with the Belle detector at or near the Υ(4S) resonance. Cabibbo-favored D → Kπ decays are used to correct for systematic detector effects. The results, A CP = (−0.43 ± 0.30 ± 0.11)% and A ππ CP = (+0.43± 0.52 ± 0.12)%, are consistent with no CP violation.
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تاریخ انتشار 2008