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Finite-width effects in the near-threshold ZZZ and ZWW production at ILC

Pasechnik, Roman LU and Kuksa, Vladimir (2011) In Modern Physics Letters A 26(15). p.1075-1093
Abstract

We calculate the cross-section of the near-threshold off-shell ZZZ and ZW+W- production at the International Linear Collider taking into account their instability and the principal part of next-to-leading order corrections. The calculations are performed in the framework of the model of unstable particles with smeared mass-shell. We show that the contribution of the finite Z/W and H widths (their instability) is large in the Higgs resonance range (about -24% and -18% for ZZZ and ZW+W-, respectively, at √s = 300 GeV) and should be taken into account in the Higgs boson studies at the future International Linear Collider.

Please use this url to cite or link to this publication:
author
and
publishing date
type
Contribution to journal
publication status
published
keywords
finite-width effects, three-boson production, Unstable particles
in
Modern Physics Letters A
volume
26
issue
15
pages
19 pages
publisher
World Scientific Publishing
external identifiers
  • scopus:79958118741
ISSN
0217-7323
DOI
10.1142/S0217732311035651
language
English
LU publication?
no
id
0bf9487a-8021-4a54-aa14-fcc37c20bbfc
date added to LUP
2016-08-18 20:12:49
date last changed
2025-10-14 12:12:37
@article{0bf9487a-8021-4a54-aa14-fcc37c20bbfc,
  abstract     = {{<p>We calculate the cross-section of the near-threshold off-shell ZZZ and ZW<sup>+</sup>W<sup>-</sup> production at the International Linear Collider taking into account their instability and the principal part of next-to-leading order corrections. The calculations are performed in the framework of the model of unstable particles with smeared mass-shell. We show that the contribution of the finite Z/W and H widths (their instability) is large in the Higgs resonance range (about -24% and -18% for ZZZ and ZW<sup>+</sup>W<sup>-</sup>, respectively, at √s = 300 GeV) and should be taken into account in the Higgs boson studies at the future International Linear Collider.</p>}},
  author       = {{Pasechnik, Roman and Kuksa, Vladimir}},
  issn         = {{0217-7323}},
  keywords     = {{finite-width effects; three-boson production; Unstable particles}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{15}},
  pages        = {{1075--1093}},
  publisher    = {{World Scientific Publishing}},
  series       = {{Modern Physics Letters A}},
  title        = {{Finite-width effects in the near-threshold ZZZ and ZWW production at ILC}},
  url          = {{http://dx.doi.org/10.1142/S0217732311035651}},
  doi          = {{10.1142/S0217732311035651}},
  volume       = {{26}},
  year         = {{2011}},
}