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Measurement of the branching fraction for B±→χc0K±

  • Author(s): Aubert, B
  • Barate, R
  • Boutigny, D
  • Gaillard, JM
  • Hicheur, A
  • Karyotakis, Y
  • Lees, JP
  • Robbe, P
  • Tisserand, V
  • Zghiche, A
  • Palano, A
  • Pompili, A
  • Chen, JC
  • Qi, ND
  • Rong, G
  • Wang, P
  • Zhu, YS
  • Eigen, G
  • Ofte, I
  • Stugu, B
  • Abrams, GS
  • Borgland, AW
  • Breon, AB
  • Brown, DN
  • Button-Shafer, J
  • Cahn, RN
  • Charles, E
  • Day, CT
  • Gill, MS
  • Gritsan, AV
  • Groysman, Y
  • Jacobsen, RG
  • Kadel, RW
  • Kadyk, J
  • Kerth, LT
  • Kolomensky, YG
  • Kral, JF
  • Kukartsev, G
  • LeClerc, C
  • Levi, ME
  • Lynch, G
  • Mir, LM
  • Oddone, PJ
  • Orimoto, TJ
  • Pripstein, M
  • Roe, NA
  • Romosan, A
  • Ronan, MT
  • Shelkov, VG
  • Telnov, AV
  • Wenzel, WA
  • Ford, K
  • Harrison, TJ
  • Hawkes, CM
  • Knowles, DJ
  • Morgan, SE
  • Penny, RC
  • Watson, AT
  • Watson, NK
  • Goetzen, K
  • Held, T
  • Koch, H
  • Lewandowski, B
  • Pelizaeus, M
  • Peters, K
  • Schmuecker, H
  • Steinke, M
  • Barlow, NR
  • Boyd, JT
  • Chevalier, N
  • Cottingham, WN
  • Kelly, MP
  • Latham, TE
  • Mackay, C
  • Wilson, FF
  • Abe, K
  • Cuhadar-Donszelmann, T
  • Hearty, C
  • Mattison, TS
  • McKenna, JA
  • Thiessen, D
  • Kyberd, P
  • McKemey, AK
  • Blinov, VE
  • Bukin, AD
  • Golubev, VB
  • Ivanchenko, VN
  • Kravchenko, EA
  • Onuchin, AP
  • Serednyakov, SI
  • Skovpen, YI
  • Solodov, EP
  • Yushkov, AN
  • Best, D
  • Bruinsma, M
  • Chao, M
  • Kirkby, D
  • Lankford, AJ
  • Mandelkern, M
  • Mommsen, RK
  • et al.
Abstract

We present a measurement of the branching fraction of the decay B±→χc0K±sample of 89×106BB̄ pairs collected by the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. The χc0meson is reconstructed through its two-body decays toπ+π-and K+K-. We measure B(B±→ χc0K±) ×Β(χc0→π+π-) = [1.32-027+0.28(stat)±0.26(syst)] × 10-6and B(B±→ χc0K±) × B(χc0→K+K-) = [1.49-0.34+0.36(stat) ±0.22(syst)] × 10-6. Using the known values for the χc0decays branching fractions, we combine these results to obtain Β(B±→χc0K±) = (2.7±0.7)× 10-4. © 2004 The American Physical Society.

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