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Measurement of branching fractions and rate asymmetries in the rare decays B→K( *)- +- -

  • Author(s): Lees, JP
  • Poireau, V
  • Tisserand, V
  • Garra Tico, J
  • Grauges, E
  • Palano, A
  • Eigen, G
  • Stugu, B
  • Brown, DN
  • Kerth, LT
  • Kolomensky, YG
  • Lynch, G
  • Koch, H
  • Schroeder, T
  • Asgeirsson, DJ
  • Hearty, C
  • Mattison, TS
  • Mckenna, JA
  • Khan, A
  • Blinov, VE
  • Buzykaev, AR
  • Druzhinin, VP
  • Golubev, VB
  • Kravchenko, EA
  • Onuchin, AP
  • Serednyakov, SI
  • Skovpen, YI
  • Solodov, EP
  • Todyshev, KY
  • Yushkov, AN
  • Bondioli, M
  • Kirkby, D
  • Lankford, AJ
  • Mandelkern, M
  • Atmacan, H
  • Gary, JW
  • Liu, F
  • Long, O
  • Vitug, GM
  • Campagnari, C
  • Hong, TM
  • Kovalskyi, D
  • Richman, JD
  • West, CA
  • Eisner, AM
  • Kroseberg, J
  • Lockman, WS
  • Martinez, AJ
  • Schumm, BA
  • Seiden, A
  • Chao, DS
  • Cheng, CH
  • Echenard, B
  • Flood, KT
  • Hitlin, DG
  • Ongmongkolkul, P
  • Porter, FC
  • Rakitin, AY
  • 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
  • Clark, PJ
  • Playfer, S
  • Bettoni, D
  • Bozzi, C
  • Calabrese, R
  • Cibinetto, G
  • Fioravanti, E
  • Garzia, I
  • Luppi, E
  • Munerato, M
  • Negrini, M
  • Piemontese, L
  • Santoro, V
  • Baldini-Ferroli, R
  • Calcaterra, A
  • De Sangro, R
  • Finocchiaro, G
  • Patteri, P
  • Peruzzi, IM
  • Piccolo, M
  • Rama, M
  • Zallo, A
  • Contri, R
  • Guido, E
  • et al.
Abstract

In a sample of 471×106 BB̄ events collected with the BABAR detector at the PEP-II e +e - collider we study the rare decays B→K( *) -+ -, where - +- - is either e +e - or μ +μ -. We report results on partial branching fractions and isospin asymmetries in seven bins of dilepton mass-squared. We further present CP and lepton-flavor asymmetries for dilepton masses below and above the J/ψ resonance. We find no evidence for CP or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments. © 2012 American Physical Society.

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