Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X
Author(s)
Dujmic, Denis; Henderson, Shawn Wesley; Sciolla, Gabriella; Yamamoto, R. K.; Zhao, M.; Cowan, Ray F; Fisher, Peter H; Spitznagel, Michael A; ... Show more Show less
DownloadAubert-2010-Correlated leading b.pdf (253.9Kb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Alternative title
Correlated leading baryon-antibaryon production in e+e-→cc̅ →Λc+Λ̅ c-X
Terms of use
Metadata
Show full item recordAbstract
We present a study of 649±35 e+e-→cc̅ events produced at √s≈10.6 GeV containing both a Λc+ baryon and a Λ̅ 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 c̅ 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.
Date issued
2010-11Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
B. Aubert et al. (BABAR Collaboration). "Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X." Phys. Rev. D 82.9, 091102(R) (2010) [8 pages] © 2010 The American Physical Society.
Version: Final published version
ISSN
1550-7998
1550-2368