Search for two-body <math display="inline"><mi>B</mi></math> meson decays to <math display="inline"><mrow><msup><mrow><mi mathvariant="normal">Λ</mi></mrow><mrow><mn>0</mn></mrow></msup></mrow></math> and <math display="inline"><mrow><msubsup><mrow><mi mathvariant="normal">Ω</mi></mrow><mrow><mi>c</mi></mrow><mrow><mo stretchy="false">(</mo><mo>*</mo><mo stretchy="false">)</mo><mn>0</mn></mrow></msubsup></mrow></math>

Savinov, V.; Adachi, I.; Ahn, J.K.; Aihara, H.; Asner, D.M.; Atmacan, H.; Ayad, R.; Banerjee, Sw.; Bennett, J.; Bessner, M.

doi:10.1103/PhysRevD.110.L031102

Search for two-body $B$ meson decays to $Λ^{0}$ and $Ω_{c}^{(*) 0}$

Belle

Collaboration

•

V. Savinov

May 18, 2024

6 pages

Published in:

Phys.Rev.D 110 (2024) 3, L031102

Published: Aug 1, 2024

e-Print:

2405.11390 [hep-ex]

DOI:

10.1103/PhysRevD.110.L031102 (publication)

Report number:

Belle Preprint 2024-04,
KEK Preprint 2024-5

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

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Abstract: (APS)

We report the results of the first search for Standard Model and baryon-number-violating two-body decays of the neutral

B

mesons to

Λ^{0}

and

Ω_{c}^{(*) 0}

using

711 {fb}^{- 1}

of data collected at the

ϒ (4 S)

resonance with the Belle detector at the KEKB asymmetric-energy

e^{+} e^{-}

collider. We observe no evidence of signal from any such decays and set 95% confidence-level upper limits on the products of

B^{0}

and

{\bar{B}}^{0}

branching fractions for these two-body decays with

B (Ω_{c}^{0} \to π^{+} Ω^{-})

in the range between

9.5 \times 10^{- 8}

and

31.2 \times 10^{- 8}

.

Note:

6 pages, 2 figures, submitted to PRD(L)

electron positron: annihilation
electron positron: colliding beams
B0: hadronic decay
B0: rare decay
baryon number: violation
Lambda
Omega/c0: hadronic decay
BELLE
B0: branching ratio
anti-B0: branching ratio

References(21)

Figures(4)

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[6]