Search for $B^0 \to p \overline {\Lambda} \pi^- \gamma$ at Belle - INSPIRE

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Search for $B^0 \to p \overline {\Lambda} \pi^- \gamma$ at Belle

Belle

Collaboration

•

Y.T. Lai
(
- Taiwan, Natl. Taiwan U.
)

Dec 15, 2013

13 pages

Published in:

Phys.Rev.D 89 (2014) 5, 051103

Published: Mar 6, 2014

e-Print:

1312.4228 [hep-ex]

DOI:

10.1103/PhysRevD.89.051103

PDG:

{{\mathit B}^{0}}

\rightarrow

{{\mathit p}}{{\overline{\mathit \Lambda}}}{{\mathit \pi}^{-}}{{\mathit \gamma}}

Report number:

BELLE-PREPRINT-2013-22,
KEK-PREPRINT-2013-33

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

reference search6 citations

Citations per year

Abstract: (APS)

We search for the charmless

{B}^{0}

decay with final state particles p\overline{\mathrm{$\Lambda${}}}{$\pi${}}^{$-${}}\gamma

{}

using the full data sample that contains 772\ifmmode\times\else\texttimes\fi{}1{0}^{6}B\overline{B} pairs collected at the \mathrm{$\Upsilon${}}(4S) resonance with the Belle detector at the KEKB asymmetric-energy {e}^{+}{e}^{$-${}} collider. This decay is predicted to proceed predominantly via the

b

\rightarrow

{}s

\gamma

{}

radiative penguin process with a high energy photon. No significant signal is found. We set an upper limit of 6.5\ifmmode\times\else\texttimes\fi{}1{0}^{$-${}7} for the branching fraction of

{B}^{0}

\rightarrow{}p\overline{\mathrm{$\Lambda${}}}{$\pi${}}^{$-${}}\gamma

{}

at the 90% confidence level.

Note:

13 pages, 2 figures, submitted to PRD

B0: branching ratio: upper limit
photon: energy
BELLE
Feynman graph: penguin
KEK-B
electron positron: annihilation
B: pair production
B0: radiative decay
experimental results
B0 --> Antilambda p pi- photon

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Figures(4)

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