Colour Connection and Diquark Fragmentation in e^+e^- \to c \bar c q \bar q \to h's Process

Abstract

The hadronization effects induced by different colour connections of $c\bar{c}q\bar{q}$ system in $e^{+}{e}^{-}$ annihilation are investigated by a toy model where diquark fragmentation is employed based on Pythia. It is found that the correlations between the charm baryons and charm antibaryons produced via diquark pair fragmentation are much stronger, and their momentum spectra are harder than those from the standard colour connection in Pythia.

arXiv comment10 pages, 7 figures and 1 table in latex with axodraw.sty, version to appear in PLB

References in corpus (16)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• High-Energy-Physics Event Generation with PYTHIA 6.1
• First Observation of the Doubly Charmed Baryon Xi_cc^+
• On Colour Rearrangement in Hadronic W${}^{+}$W${}^{-}$ Events
• Charm Hadrons from Fragmentation and B decays in e+e- Annihilation at $\sqrt{s}=$10.6 GeV
• Does the W Mass Reconstruction Survive QCD Effects?
• Factorization Approach for Inclusive Production of Doubly Heavy Baryon
• Charm Meson Spectra in e^+e^- Annihilation at 10.5 GeV c.m.e
• Colour connections in e+e- -annihilation
• Study of Exclusive B decays to Charmed Baryons
• Color separate singlets in $e^{+}{e}^{-}$ annihilation
• Probability of Color Rearrangement at Partonic Level in Hadronic W^+W^- Decays
• Inclusive Production of Four Charm Hadrons in e^+ e^- Annihilation at B Factories
• {Probing Colour Separate States in $e^{+}{e}^{-}$ annihilation at $Z^0$ pole
• $e^{+}{e}^{-}\to Z^0{Z}^0\to b\bar{b}c\bar{c}$ events as model independent probe of colour reconnection effects

Cited by in corpus (6)

• Colour and baryon number fluctuation of preconfinement system in production process and T_cc structure
• Exotic hadron production in quark combination model
• Search for doubly charmed hadron at B factory
• Colour connections of four quark $Q\bar{Q}{Q}^{\prime }{\bar{Q}}^{\prime }$ system and doubly heavy baryon production in $e^{+}{e}^{-}$ annihilation
• The Production of ${\Xi }_{bb}$ at Photon Collider
• An Investigation of Hadronization Mechanism at $Z^0$ Factory