2012/11/01 by O. Grünberg, Oliver Grünberg, Grünberg, Oliver
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.48550/arxiv.1211.0212
arxiv created 2012/11/01 · openalex publication_date 2012/11/01 · arxiv updated 2012/11/02 · openalex created_date 2022/10/07 · openalex updated_date 2026/07/28
We report on the analyses of the baryonic B decays B0bar -> LambdaC+ p- p+ p- and B- -> SigmaC++ p- pi- pi-. The underlying data sample consists of 470 x 106 BBbar pairs generated in the process e+e- -> Y(4S) and collected with the BaBar detector at the PEP-II storage ring at SLAC. We find BR(B0bar -> LambdaC+ p- p+ p-) x BR(LambdaC+ -> p+ K- pi+) / 5% < 6.2 x 10^(-6) @ CL=90% and BR(B- -> SigmaC++ p- pi- pi-) = [2.98 +/- 0.16(stat) +/- 0.15(syst) +/- 0.77(LambdaC+)] x 10^(-4), where the last error is due to the uncertainty in BR(LambdaC+ -> p+ K- pi+). The data suggest the existence of resonant subchannels B- -> LambdaC(2595)+ p- pi- and, possibly, B- -> SigmaC++ anti-Delta-- pi-. We see unexplained structures in m(SigmaC++ pi- pi-) at 3.25 GeV/c2, 3.8 GeV/c2, and 4.2 GeV/c2.