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20082025
most citedNew structures in the J/J/ mass spectrum in proton-proton collisions at = 13 TeV

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hep-ex2008★ 4 cited

First Observation of the Cabibbo-suppressed Decays Xi_c+ -> Sigma+ pi- pi+ and Xi_c+ -> Sigma- pi+ pi+ and Measurement of their Branching Ratios

SELEX Collaboration, E. Vazquez-Jauregui, J. Engelfried

We report the first observation of two Cabibbo-suppressed decay modes, Xi_c+ -> Sigma+ pi- pi+ and Xi_c+ -> Sigma- pi+ pi+. We observe 59+/-14 over a background of 87, and 22+/-8 o…