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BABAR Collaboration; Martínez Vidal, Fernando; Oyanguren Campos, Arantza; Villanueva Pérez, Pablo | |||
Aquest document és un/a article, creat/da en: 2013 | |||
Este documento está disponible también en : 10.1103/PhysRevLett.111.101802 |
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We present results of a search for CP violation in B-0-(B) over bar (0) mixing with the BABAR detector. We select a sample of B0 -> D*-Xl(+)nu decays with a partial reconstruction method and use kaon tagging to assess the flavor of the other B meson in the event. We determine the CP violating asymmetryA(CP) [N((BB0)-B-0) ¿ N((B-0) over bar (B-0) over bar)]/[N((B-0) over bar (B-0) over bar) + N((BB0)-B-0)] = (0.06 +/- 0.17 +/- 0.38-0.32)%, corresponding to Delta(CP) = 1- vertical bar q/p vertical bar = (0.29 +/- 0.84+1.88-1.61) X 10(-3). | |||
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