Evidence for the baryonic decay $\bar{B}^0 \to D^0\Lambda\bar{\Lambda}$ - INSPIRE

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Evidence for the baryonic decay $\bar{B}^0 \to D^0\Lambda\bar{\Lambda}$

BaBar

Collaboration

Jan 23, 2014

9 pages

Published in:

Phys.Rev.D 89 (2014) 11, 112002

Published: Jun 6, 2014

e-Print:

1401.5990 [hep-ex]

DOI:

10.1103/PhysRevD.89.112002

PDG:

{{\mathit B}^{0}}

\rightarrow

{{\overline{\mathit \Lambda}}}{{\mathit \Lambda}}{{\mathit D}^{0}}

Report number:

BABAR-PUB-13-008,
SLAC-PUB-15835

Experiments:

SLAC-PEP2-BABAR

View in:

reference search10 citations

Citations per year

Abstract: (APS)

Evidence is presented for the baryonic B meson decay B¯0→D0ΛΛ¯ based on a data sample of 471×106 BB¯ pairs collected with the BABAR detector at the PEP-II asymmetric e+e- collider located at the SLAC National Accelerator Laboratory. The branching fraction is determined to be B(B¯0→D0ΛΛ¯)=(9.8-2.6+2.9±1.9)×10-6, corresponding to a significance of 3.4 standard deviations including additive systematic uncertainties. A search for the related baryonic B meson decay B¯0→D0Σ0Λ¯ with Σ0→Λγ is performed and an upper limit B(B¯0→D0Σ0Λ¯+B¯0→D0ΛΣ¯0)<3.1×10-5 is determined at 90% confidence level.

Note:

11 pages, 5 figures

13.25.Hw
13.60.Rj
14.20.Lq
electron positron: annihilation
B: pair production
anti-B0: hadronic decay
hyperon: pair production
anti-B0: branching ratio: measured
branching ratio: upper limit
Sigma0: radiative decay

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Figures(7)

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