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Correlated leading baryon-antibaryon production in e(+)e(-) -> c(c)over-bar -> Lambda(+)(c)(Lambda)over-bar(c)(-)X

Abstract:

We present a study of 649±35 e⊃+e⊃-→cc̄ events produced at √s±10.6GeV containing both a Λc+ baryon and a Λ̄c- 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 c̄ are predominantly contained in a correlated baryon-antibaryon system. In addition to the charmed bary...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.82.091102

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Journal:
Physical Review D More from this journal
Volume:
82
Issue:
9
Publication date:
2010-11-09
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
Pubs id:
pubs:211421
UUID:
uuid:08ee6afa-0e35-4d3c-bc35-7d17308f6b0a
Local pid:
pubs:211421
Source identifiers:
211421
Deposit date:
2012-12-19

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