Associated production of H ± and W ± in high-energy e +e - collisions in the minimal supersymmetric standard model

Heather E. Logan, Shufang Su

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44 Citations (Scopus)

Abstract

We study the associated production of the charged Higgs boson and W ± gauge boson in high energy e +e - collisions in the minimal supersymmetric standard model (MSSM). This associated production, which first arises at the one loop level, offers the possibility of producing the charged Higgs boson at the e +e - collider with a mass more than half the center-of-mass energy, when the charged Higgs pair production is kinematically forbidden. We present analytic and numerical results for the cross section for e +e -→ W +H - in the full MSSM, taking into account the previously uncalculated contributions from supersymmetric (SUSY) particles. We find that the contributions of the SUSY particles enhance the cross section over most of SUSY parameter space, especially when the SUSY particles are light, ∼200 GeV. With favorable SUSY parameters, at small tan β, this process can yield more than ten W ± H ± events for m ≲;350 GeV in 500 fb -1 at a 500 GeV e +e - collider, or m ≲600 GeV in 1000 fb -1 at a 1000 GeV collider. 80% left-handed polarization of the e - beam improves these reaches to m ≲375 GeV and m 670 GeV, respectively.

Original languageEnglish (US)
Article number035001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume66
Issue number3
DOIs
StatePublished - 2002
Externally publishedYes

Fingerprint

High Energy
Standard Model
Collision
Higgs Boson
Higgs bosons
collisions
Cross section
Left handed
cross sections
Electron Beam
Barycentre
pair production
Higgs
Bosons
center of mass
Parameter Space
energy
Gauge
Polarization
bosons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

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abstract = "We study the associated production of the charged Higgs boson and W ± gauge boson in high energy e +e - collisions in the minimal supersymmetric standard model (MSSM). This associated production, which first arises at the one loop level, offers the possibility of producing the charged Higgs boson at the e +e - collider with a mass more than half the center-of-mass energy, when the charged Higgs pair production is kinematically forbidden. We present analytic and numerical results for the cross section for e +e -→ W +H - in the full MSSM, taking into account the previously uncalculated contributions from supersymmetric (SUSY) particles. We find that the contributions of the SUSY particles enhance the cross section over most of SUSY parameter space, especially when the SUSY particles are light, ∼200 GeV. With favorable SUSY parameters, at small tan β, this process can yield more than ten W ± H ± events for m H±≲;350 GeV in 500 fb -1 at a 500 GeV e +e - collider, or m H±≲600 GeV in 1000 fb -1 at a 1000 GeV collider. 80{\%} left-handed polarization of the e - beam improves these reaches to m H±≲375 GeV and m H±670 GeV, respectively.",
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