Correlated leading baryon-antibaryon production in e+e-\u2192cc\u305 \u2192\u39bc+\u39b\u305 c-X
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DOIAbstract
We present a study of 649\ub135 e+e-\u2192cc\u305 events produced at 1as 4810.6\u2009\u2009GeV containing both a \u39bc+ baryon and a \u39b\u305 c- antibaryon. The number observed is roughly 4 times that expected if the leading charmed hadron types are uncorrelated, confirming an observation by the CLEO Collaboration. We find a 2-jet topology in these events but very few additional baryons, demonstrating that the primary c and c\u305 are predominantly contained in a correlated baryon-antibaryon system. In addition to the charmed baryons we observe on average 2.6\ub10.2 charged intermediate mesons, predominantly pions, carrying 65% of the remaining energy
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