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Search for the rare decays B0→D(∗)B^0 \to D^{(*)} +(ss) a-0(2)

Collaboration
Dec, 2005
8 pages
Published in:
  • Phys.Rev.D 73 (2006) 071103
e-Print:
DOI:
Report number:
  • SLAC-PUB-11600,
  • BABAR-PUB-05-048
Experiments:
View in:
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Abstract:
We have searched for the decays B0→Ds+a0−B^0 \rightarrow D_s^{+}a_0^-, B0→Ds∗+a0−B^0 \rightarrow D_s^{*+}a_0^-, B0→Ds+a2−B^0 \rightarrow D_s^{+}a_2^- and B0→Ds∗+a2−B^0 \rightarrow D_s^{*+}a_2^- in a sample of about 230 million Υ(4S)→BBˉ\Upsilon(4S) \rightarrow B{\bar B} decays collected with the {\sl BaBar} detector at the PEP-II asymmetric-energy BB-factory at SLAC. We find no evidence for these decays and set upper limits at 90\% C.L. on the branching fractions: B(B0→Ds+a0−)<1.9×10−5{\cal B}(B^0 \rightarrow D_s^+ a_0^-) < 1.9\times 10^{-5}, B(B0→Ds∗+a0−)<3.6×10−5{\cal B}(B^0 \rightarrow D_s^{*+} a_0^-) < 3.6\times 10^{-5}, B(B0→Ds+a2−)<1.9×10−4{\cal B}(B^0 \rightarrow D_s^+ a_2^-) < 1.9 \times 10^{-4}, and B(B0→Ds∗+a2−)<2.0×10−4{\cal B}(B^0 \rightarrow D_s^{*+} a_2^-) < 2.0\times 10^{-4} .
Note:
  • 8 pages, 8 postscript figues, submitted to PRD-RC Report-no: BABAR-PUB-05/048, SLAC-PUB-11600
  • 11.30.Er
  • 13.25.Hw
  • 12.15.Hh
  • electron positron: colliding beams
  • electron positron: annihilation
  • Upsilon(10570): electroproduction
  • B: pair production
  • B0: hadronic decay
  • D/s
  • D/s*(2110)