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Observation of the baryonic decay B ̄ 0 → Λc+ p ̄ K-K+

Lees, J. P.
•
Poireau, V.
•
Tisserand, V.
altro
Wu, S. L.
2015
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We report the observation of the baryonic decay B ̄0→Λc+p ̄K-K+ using a data sample of 471×106 BB ̄ pairs produced in e+e- annihilations at s=10.58GeV. This data sample was recorded with the BABAR detector at the PEP-II storage ring at SLAC. We find B(B ̄0→Λc+p ̄K-K+)=(2.5±0.4(stat)±0.2(syst)±0.6B(Λc+))×10-5, where the uncertainties are statistical, systematic, and due to the uncertainty of the Λc+→pK-π+ branching fraction, respectively. The result has a significance corresponding to 5.0 standard deviations, including all uncertainties. For the resonant decay B ̄0→Λc+p ̄φ, we determine the upper limit B(B ̄0→Λc+p ̄φ)<1.2×10-5 at 90% confidence level.
DOI
10.1103/PhysRevD.91.031102
WOS
WOS:000349909500001
Archivio
http://hdl.handle.net/11368/2871971
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84922605268
http://journals.aps.org/prd/issues/91/3
Diritti
open access
license:digital rights management non definito
FVG url
https://arts.units.it/bitstream/11368/2871971/2/Observation of the baryonic decay B ¯ 0 â Î c+ p ¯ K-K+.pdf
Soggetti
  • Nuclear and High Ener...

Web of Science© citazioni
3
Data di acquisizione
Mar 13, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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