literature
Literature
Authors
Jobs
Seminars
Conferences
DataBETA

Search for charmless two-body baryonic decays of B mesons

Collaboration
Mar, 2002
6 pages
Published in:
  • Phys.Rev.D 65 (2002) 091103
e-Print:
DOI:
Experiments:
View in:
pdf
reference search37 citations

Citations per year

200120042007201020130246810
Abstract: (arXiv)
We report the results of a search for the rare baryonic decays B0→ppˉB^0 \to p\bar{p}, ΛΛˉ\Lambda\bar{\Lambda}, and B+→pΛˉB^+ \to p\bar{\Lambda}. The analysis is based on a data set of 31.7×106BBˉ31.7\times 10^6 B\bar{B} events collected by the Belle detector at the KEKB e+e−e^+e^- collider. No statistically significant signals are found, and we set branching fraction upper limits B(B0→ppˉ)<1.2×10−6{\mathcal B}(B^0 \to p\bar{p}) < 1.2 \times 10^{-6}, B(B0→ΛΛˉ)<1.0×10−6{\mathcal B}(B^0 \to \Lambda\bar{\Lambda}) < 1.0 \times 10^{-6}, and B(B+→pΛˉ)<2.2×10−6{\mathcal B}(B^+ \to p\bar{\Lambda}) < 2.2 \times 10^{-6} at the 90% confidence level.
  • 13.25.Hw
  • electron positron: colliding beams
  • electron positron: annihilation
  • Upsilon(10570): electroproduction
  • B: pair production
  • B: hadronic decay
  • B0: branching ratio
  • B+: branching ratio
  • upper limit
  • mass spectrum: (p anti-p)