Vol. 29 No. 2 (2019)
Papers

\(\mathcal{O}(\alpha^3)\) ISR Corrections to Single Higgs Productions at Future Lepton Colliders

Phan Hong Khiem
VNUHCM-University of Science, Ho Chi Minh City, 227 Nguyen Van Cu, Dist. 5, Ho Chi Minh City, Vietnam
Tran Tri Dzung
VNUHCM-University of Science, Ho Chi Minh City, 227 Nguyen Van Cu, Dist. 5, Ho Chi Minh City, Vietnam

Published 14-05-2019

Keywords

  • Higgs boson,
  • electron-positron colliders,
  • QED corrections,
  • future lepton colliders,
  • Initial- state photon radiation.

How to Cite

Khiem, P. H., & Dzung, T. T. (2019). \(\mathcal{O}(\alpha^3)\) ISR Corrections to Single Higgs Productions at Future Lepton Colliders. Communications in Physics, 29(2), 163. https://doi.org/10.15625/0868-3166/29/2/13582

Abstract

In this paper, we present \(\mathcal{O}(\alpha^3)\) QED corrections due to initial-state photon radiation (ISR) to processes \(e^{−} e^{+} \to f \bar{f} H\) with \(f = e, \mu_e, \nu_{\mu}, \nu_{\tau}\) at future lepton colliders. The impact of the ISR corrections on the total cross sections are studied. We find that the corrections vary from ∼ −30% to −10% in the range of center-of-mass energies from 200 GeV to 700 GeV. The ISR corrections to some realistic distributions of experimental interest for searching the properties of the Higgs boson are also evaluated and they are order of \(\sim −10\)% contributions at \(s = 250\) GeV. The corrections are massive contributions and they must be taken into account for matching high precision data at future lepton colliders.

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