Correlated leading baryon-antibaryon production in e e-> ccbar -> Lambda c antiLambda c- X - High Energy Physics - ExperimentReportar como inadecuado




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Abstract: We present a study of 649 \pm 35 e+e-> ccbar events produced atsqrt{s}~10.6 GeV containing both a Lambda c baryon and a Lambda c antibaryon.The number observed is roughly four times that expected if the leading charmedhadron types are uncorrelated, confirming an observation by the CLEOCollaboration. We find a 2-jet topology in these events but very few additionalbaryons, demonstrating that the primary c and cbar are predominantly containedin a correlated baryon-antibaryon system. In addition to the charmed baryons weobserve on average 2.6 \pm 0.2 charged intermediate mesons, predominantlypions, carrying 65% of the remaining energy.



Autor: The BABAR Collaboration, B. Aubert, et al

Fuente: https://arxiv.org/







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