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Measurement of the B0 meson lifetime with partial reconstruction of B0→D*-π+ and B0→D*p+ decays

  • 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
  • Gill, MS
  • Gritsan, AV
  • Groysman, Y
  • Jacobsen, RG
  • Kadel, RW
  • Kadyk, J
  • Kerth, LT
  • Kolomensky, YG
  • Kral, JF
  • 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
  • Harrison, TJ
  • Hawkes, CM
  • Knowles, DJ
  • O'Neale, SW
  • Penny, RC
  • Watson, AT
  • Watson, NK
  • Deppermann, T
  • Goetzen, K
  • Koch, H
  • Lewandowski, B
  • Pelizaeus, M
  • Peters, K
  • Schmuecker, H
  • Steinke, M
  • Barlow, NR
  • Bhimji, W
  • Boyd, JT
  • Chevalier, N
  • Clark, PJ
  • Cottingham, WN
  • Mackay, C
  • Wilson, FF
  • Hearty, C
  • Mattison, TS
  • McKenna, JA
  • Thiessen, D
  • Jolly, S
  • Kyberd, P
  • McKemey, AK
  • Blinov, VE
  • Bukin, AD
  • Buzykaev, AR
  • Golubev, VB
  • Ivanchenko, VN
  • Korol, AA
  • Kravchenko, EA
  • Onuchin, AP
  • Serednyakov, SI
  • Skovpen, YI
  • Yushkov, AN
  • Best, D
  • Chao, M
  • Kirkby, D
  • Lankford, AJ
  • Mandelkern, M
  • McMahon, S
  • Mommsen, RK
  • Stoker, DP
  • Buchanan, C
  • Hadavand, HK
  • et al.
Abstract

The neutral B meson lifetime is measured with the data collected by the BABAR detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosity of 20.7 fb-1. The decays B0 →D*-π+ and B0→D*-p+ are selected with a partial-reconstruction technique, yielding samples of 6970 ±240 and 5520±250 signal events, respectively. With these events, the B0 lifetime is measured to be 1.533 ±0.034 (stat)±0.038 (syst) ps. This measurement serves as a test and validation of procedures required to measure the CP violation parameter sin(2β+γ) with partial reconstruction of these modes.

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