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- W54557022 abstract "Using data from the SELEX experiment, we searched for baryons having two charm quarks. No one has yet observed a doubly-charmed baryon. We investigated the reconstruction $Lambda^+_c K⁻ pi^+pi^+$, a decay mode consistent with a baryon having $ccu$ quarks. We observe an excess of 20 events above an expected background of 31 events, at a mass of 3.76 GeV/$c^2$. We observe differences between the signal events and the background. The mass resolution, mass, and decay mode are consistent with a $ccu$ baryon. The mass and production are higher than theoretical predictions for the ground state $Xi^{++}_{cc}$. If the signal is real and not a doubly-charmed baryon, then it is not accounted for by current physics" @default.
- W54557022 created "2016-06-24" @default.
- W54557022 creator A5015909250 @default.
- W54557022 date "2002-01-01" @default.
- W54557022 modified "2023-09-24" @default.
- W54557022 title "Search for Baryons with Two Charm Quarks" @default.
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- W54557022 doi "https://doi.org/10.2172/1420963" @default.
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