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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/32871
Title: Correlated leading baryon-antibaryon production in e(+)e(-) -> c(c)over-bar -> Lambda(+)(c)(Lambda)over-bar(c)(-)X
Authors: Babar Collaboration; Azzolini, Virginia; López-March, Neus; Martínez-Vidal, Fernando; Milanés, Diego A.; Oyanguren, Arantza; Aubert, B.; Lees, J. P.; Sánchez, P. D.
Issue Date: 9-Nov-2010
Publisher: American Physical Society
Citation: Physical Review - Section D - Particles and Fields 82 (9): 091102 (2010)
Abstract: We present a study of 649 +/- 35 e(+)e(-) -> c (c) over bar events produced at root s approximate to 10.6 GeV containing both Lambda(+)(c) baryon and a (Lambda) over bar (-)(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) over bar are predominantly contained in a correlated baryon-antibaryon system. In addition to the charmed baryons we observe on average 2.6 +/- 0.2 charged intermediate mesons, predominantly pions, carrying 65% of the remaining energy.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevD.82.091102
URI: http://hdl.handle.net/10261/32871
DOI: 10.1103/PhysRevD.82.091102
ISSN: 1550-7998
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