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Search for CP violation in B0- B̄0 mixing using partial reconstruction of B0→D*-Xℓ+νℓand a Kaon Tag

  • Author(s): Lees, JP
  • Poireau, V
  • Tisserand, V
  • Grauges, E
  • Palano, A
  • Eigen, G
  • Stugu, B
  • Brown, DN
  • Kerth, LT
  • Kolomensky, YG
  • Lee, MJ
  • Lynch, G
  • Koch, H
  • Schroeder, T
  • Hearty, C
  • Mattison, TS
  • McKenna, JA
  • So, RY
  • Khan, A
  • Blinov, VE
  • Buzykaev, AR
  • Druzhinin, VP
  • Golubev, VB
  • Kravchenko, EA
  • Onuchin, AP
  • Serednyakov, SI
  • Skovpen, YI
  • Solodov, EP
  • Todyshev, KY
  • Yushkov, AN
  • Kirkby, D
  • Lankford, AJ
  • Mandelkern, M
  • Dey, B
  • Gary, JW
  • Long, O
  • Vitug, GM
  • Campagnari, C
  • Franco Sevilla, M
  • Hong, TM
  • Kovalskyi, D
  • Richman, JD
  • West, CA
  • Eisner, AM
  • Lockman, WS
  • Martinez, AJ
  • Schumm, BA
  • Seiden, A
  • Chao, DS
  • Cheng, CH
  • Echenard, B
  • Flood, KT
  • Hitlin, DG
  • Ongmongkolkul, P
  • Porter, FC
  • Andreassen, R
  • Huard, Z
  • Meadows, BT
  • Sokoloff, MD
  • Sun, L
  • Bloom, PC
  • Ford, WT
  • Gaz, A
  • Nauenberg, U
  • Smith, JG
  • Wagner, SR
  • Ayad, R
  • Toki, WH
  • Spaan, B
  • Schubert, KR
  • Schwierz, R
  • Bernard, D
  • Verderi, M
  • Playfer, S
  • Bettoni, D
  • Bozzi, C
  • Calabrese, R
  • Cibinetto, G
  • Fioravanti, E
  • Garzia, I
  • Luppi, E
  • Piemontese, L
  • Santoro, V
  • Baldini-Ferroli, R
  • Calcaterra, A
  • et al.
Abstract

We present results of a search for CP violation in B0- B̄0 mixing with the BABAR detector. We select a sample of B0→D*-Xℓ+ν 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 asymmetry ACP≡[N(B0B0)-N(B̄0B̄0)]/[N(B0B0)+N(B̄0B̄0)]= (0.06±0.17-0.32+0.38)%, corresponding to ΔCP=1-|q/p|=(0. 29±0.84-1.61+1.88)×10-3. © 2013 American Physical Society.

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