English

Colour Reconnection at Future $\mathrm{e}^\mathbf{+}\mathrm{e}^\mathbf{-}$ Colliders

High Energy Physics - Phenomenology 2015-07-01 v1

Abstract

The effects of colour reconnection (CR) at e+e\mathrm{e}^+\mathrm{e}^- colliders are revisited, with focus on recently developed CR models. The new models are compared with the LEP2 measurements for e+eW+Wq1q2q3q4\mathrm{e}^+\mathrm{e}^- \to \mathrm{W}^+\mathrm{W}^- \to\mathrm{q}_1 \overline{\mathrm{q}}_2 \mathrm{q}_3 \overline{\mathrm{q}}_4 and found to lie within their limits. Prospects for constraints from new high-luminosity e+e\mathrm{e}^+\mathrm{e}^- colliders are discussed. The novel arena of CR in Higgs decays is introduced, and illustrated by shifts in angular correlations that would be used to set limits on a potential CPCP-odd admixture of the 125 GeV Higgs state.

Keywords

Cite

@article{arxiv.1506.09085,
  title  = {Colour Reconnection at Future $\mathrm{e}^\mathbf{+}\mathrm{e}^\mathbf{-}$ Colliders},
  author = {Jesper R. Christiansen and Torbjörn Sjöstrand},
  journal= {arXiv preprint arXiv:1506.09085},
  year   = {2015}
}

Comments

11 pages, 4 figures

R2 v1 2026-06-22T10:03:00.583Z