Speaker
Menglin Xu
(Central China Normal University)
Description
The doubly charmed baryon decay Xicc++->Xic+pi+ is observed for the first time, with a statistical significance of 5.9σ, confirming a recent observation of the baryon in the Lambdac+k-pi+pi+ final state. The data sample used corresponds to an integrated luminosity of 1.7fb−1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13TeV. The Xicc mass is measured to be
3620.6±1.5(stat)±0.4(syst)±0.3(Xic+)MeV/c2, and is consistent with the previous result. The ratio of branching fractions between the decay modes is measured to be 0.035±0.009(stat)±0.003(syst).
| Sessions (parallel only) | Heavy Flavor |
|---|---|
| Type | Parallel talk |
