Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2010-12-13
PoS(ICHEP 2010)180
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages, 3 figures, submitted to ICHEP 2010 proceedings
Scientific paper
Due to an excellent mass resolution and a large amount of available data, the CDF experiment, located at the Tevatron proton-antiproton accelerator, allows the precise measurement of spectroscopic properties, like mass and decay width, of a variety of states. This was exploited to examine the first orbital excitations of the Lambdac baryon, the resonances Lambdac(2595) and Lambdac(2625), in the decay channel Lambdac+ pi+ pi-, as well as the Lambdac spin excitations Sigmac(2455) and Sigmac(2520) in its decays to Lambdac+ pi- and Lambdac+ pi+ final states in a data sample corresponding to an integrated luminosity of 5.2 invfb. We present measurements of the mass differences with respect to the Lambdac and the decay widths of these states, using significantly higher statistics than previous experiments.
for the CDF Collaboration
Wick Felix
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