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http://hdl.handle.net/2445/131735
Title: | Correlated leading baryon-antibaryon production in e+e−→c¯c→Λ+c¯¯¯Λ−cX |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 9-Nov-2010 |
Publisher: | American Physical Society |
Abstract: | We present a study of 649 ± 35 e + e − → c ¯ c events produced at √ s ≈ 10.6 GeV containing both a Λ + c baryon and a ¯¯¯ Λ − 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 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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.82.091102 |
It is part of: | Physical Review D, 2010, vol. 82, num. 9, p. 091102 |
URI: | http://hdl.handle.net/2445/131735 |
Related resource: | https://doi.org/10.1103/PhysRevD.82.091102 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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