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Rapidity-rank structure of pp- pairs in hadronic Z0 decays

par Abreu, Pedro;Bertrand, Daniel ; [et al.]
Référence Physics letters. Section B, 490, page (61-70)
Publication Publié, 2000

Article révisé par les pairs

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Résumé :

The rapidity-rank structure of pp̄ pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuration p M p̄, where M is a meson, and that of pp̄ adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank pp̄ pairs, without requiring 'string-ordered' p M p̄ configurations. An upper limit of 15% at 90% confidence is determined for the p M p̄ contribution. (C) 2000 Elsevier Science B.V.