Finitie-width effects in the near-threshold ZZZ and ZWW production at ILC
2011 (English)In: Modern Physics Letters A, ISSN 0217-7323, E-ISSN 1793-6632, Vol. 26, no 15, 1075-1093 p.Article in journal (Refereed) Published
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 root s = 300 GeV) and should be taken into account in the Higgs boson studies at the future International Linear Collider.
Place, publisher, year, edition, pages
2011. Vol. 26, no 15, 1075-1093 p.
Unstable particles, finite-width effects, three-boson production
IdentifiersURN: urn:nbn:se:uu:diva-155227DOI: 10.1142/S0217732311035651ISI: 000291218100002OAI: oai:DiVA.org:uu-155227DiVA: diva2:425512