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Correlated leading baryon-antibaryon production ine+e−→cc¯→Λc+Λ¯c−X
- Source :
- Physical Review D. 82
- Publication Year :
- 2010
- Publisher :
- American Physical Society (APS), 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.
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Meson
010308 nuclear & particles physics
Electron–positron annihilation
Nuclear Theory
High Energy Physics::Phenomenology
Hadron
Elementary particle
Astrophysics::Cosmology and Extragalactic Astrophysics
Lambda
01 natural sciences
Nuclear physics
Baryon
Charmed baryons
Pion
0103 physical sciences
High Energy Physics::Experiment
Nuclear Experiment
010306 general physics
Subjects
Details
- ISSN :
- 15502368 and 15507998
- Volume :
- 82
- Database :
- OpenAIRE
- Journal :
- Physical Review D
- Accession number :
- edsair.doi...........72f75dbb3d9c0292ad7c72b4937c9b0a
- Full Text :
- https://doi.org/10.1103/physrevd.82.091102