FINITE-WIDTH EFFECTS IN THE NEAR-THRESHOLD ZZZ AND ZWW PRODUCTION AT ILC-Reference-Cited by-同舟云学术

FINITE-WIDTH EFFECTS IN THE NEAR-THRESHOLD ZZZ AND ZWW PRODUCTION AT ILC

Published:2011-05-20 Issue:15 Volume:26 Page:1075-1093
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

PASECHNIK ROMAN¹,KUKSA VLADIMIR²

Affiliation:

1. High Energy Physics, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden

2. Institute of Physics, Southern Federal University, 344090 Rostov-on-Don, Russia

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 [Formula: see text]) and should be taken into account in the Higgs boson studies at the future International Linear Collider.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732311035651

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