Skip to main content
eScholarship
Open Access Publications from the University of California

Measurement of the branching fraction and time-dependent CP asymmetry in the decay B0→D*+D*-Ks0

  • Author(s): Aubert, B
  • Bona, M
  • Boutigny, D
  • Couderc, F
  • Karyotakis, Y
  • Lees, JP
  • Poireau, V
  • Tisserand, V
  • Zghiche, A
  • Grauges, E
  • Palano, A
  • Chen, JC
  • Qi, ND
  • Rong, G
  • Wang, P
  • Zhu, YS
  • Eigen, G
  • Ofte, I
  • Stugu, B
  • Abrams, GS
  • Battaglia, M
  • Brown, DN
  • Button-Shafer, J
  • Cahn, RN
  • Charles, E
  • Gill, MS
  • Groysman, Y
  • Jacobsen, RG
  • Kadyk, JA
  • Kerth, LT
  • Kolomensky, YG
  • Kukartsev, G
  • Lynch, G
  • Mir, LM
  • Orimoto, TJ
  • Pripstein, M
  • Roe, NA
  • Ronan, MT
  • Wenzel, WA
  • Del Amo Sanchez, P
  • Barrett, M
  • Ford, KE
  • Harrison, TJ
  • Hart, AJ
  • Hawkes, CM
  • Watson, AT
  • Held, T
  • Koch, H
  • Lewandowski, B
  • Pelizaeus, M
  • Peters, K
  • Schroeder, T
  • Steinke, M
  • Boyd, JT
  • Burke, JP
  • Cottingham, WN
  • Walker, D
  • Asgeirsson, DJ
  • Cuhadar-Donszelmann, T
  • Fulsom, BG
  • Hearty, C
  • Knecht, NS
  • Mattison, TS
  • McKenna, JA
  • Khan, A
  • Kyberd, P
  • Saleem, M
  • Sherwood, DJ
  • Teodorescu, L
  • Blinov, VE
  • Bukin, AD
  • Druzhinin, VP
  • Golubev, VB
  • Onuchin, AP
  • Serednyakov, SI
  • Skovpen, YI
  • Solodov, EP
  • Todyshev, KY
  • Bondioli, M
  • Bruinsma, M
  • Chao, M
  • Curry, S
  • Eschrich, I
  • Kirkby, D
  • Lankford, AJ
  • Lund, P
  • Mandelkern, M
  • Mommsen, RK
  • Roethel, W
  • Stoker, DP
  • Abachi, S
  • Buchanan, C
  • Foulkes, SD
  • Gary, JW
  • Long, O
  • Shen, BC
  • Wang, K
  • Zhang, L
  • Hadavand, HK
  • Hill, EJ
  • et al.
Abstract

We study the decay B0→D*+D*-KS0 using (230±2) ×106BB̄ pairs collected by the BABAR detector at the PEP-II B factory. We measure a branching fraction B(B0→D*+D*-KS0)=(4. 4±0.4±0.7)×10-3 and find evidence for the decay B0→D*-Ds1+(2536) with a significance of 4.6σ. A time-dependent CP asymmetry analysis is also performed to study the possible resonant contributions to B0→D*+D*-KS0 and the sign of cos2β. Our measurement indicates that there is a sizable resonant contribution to the decay B0→D*+D*-KS0 from an unknown Ds1+ state with large width, and that cos2β is positive at the 94% confidence level under certain theoretical assumptions. © 2006 The American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View