Measurement of the [formula presented] coupling in the process [formula presented] off the W-boson resonance

Michael A. Doncheski, K. Andrew Peterson

Research output: Contribution to journalArticle

Abstract

We study the (Formula presented) gauge boson coupling in the process (Formula presented) off the W-boson resonance by evaluating the helicity amplitudes of all contributing Feynman diagrams. We examine this process for 500 GeV and 1 TeV (Formula presented) colliders including the photon spectra obtained from both a backscattered laser and from beamstrahlung radiation. The couplings could best be measured using the backscattered laser photons with (Formula presented) and (Formula presented) at a 500 GeV collider and (Formula presented) at a 1 TeV collider, all at 95% C.L. Except for the relatively weak limits on (Formula presented) at (Formula presented) these sensitivities are the same order of magnitude as can be obtained from real single W-production demonstrating that additional information can be obtained from non-resonant final states.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume59
Issue number11
DOIs
StatePublished - Apr 22 1999

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bosons
Feynman diagrams
photons
lasers
sensitivity
radiation

All Science Journal Classification (ASJC) codes

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

Cite this

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title = "Measurement of the [formula presented] coupling in the process [formula presented] off the W-boson resonance",
abstract = "We study the (Formula presented) gauge boson coupling in the process (Formula presented) off the W-boson resonance by evaluating the helicity amplitudes of all contributing Feynman diagrams. We examine this process for 500 GeV and 1 TeV (Formula presented) colliders including the photon spectra obtained from both a backscattered laser and from beamstrahlung radiation. The couplings could best be measured using the backscattered laser photons with (Formula presented) and (Formula presented) at a 500 GeV collider and (Formula presented) at a 1 TeV collider, all at 95{\%} C.L. Except for the relatively weak limits on (Formula presented) at (Formula presented) these sensitivities are the same order of magnitude as can be obtained from real single W-production demonstrating that additional information can be obtained from non-resonant final states.",
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N2 - We study the (Formula presented) gauge boson coupling in the process (Formula presented) off the W-boson resonance by evaluating the helicity amplitudes of all contributing Feynman diagrams. We examine this process for 500 GeV and 1 TeV (Formula presented) colliders including the photon spectra obtained from both a backscattered laser and from beamstrahlung radiation. The couplings could best be measured using the backscattered laser photons with (Formula presented) and (Formula presented) at a 500 GeV collider and (Formula presented) at a 1 TeV collider, all at 95% C.L. Except for the relatively weak limits on (Formula presented) at (Formula presented) these sensitivities are the same order of magnitude as can be obtained from real single W-production demonstrating that additional information can be obtained from non-resonant final states.

AB - We study the (Formula presented) gauge boson coupling in the process (Formula presented) off the W-boson resonance by evaluating the helicity amplitudes of all contributing Feynman diagrams. We examine this process for 500 GeV and 1 TeV (Formula presented) colliders including the photon spectra obtained from both a backscattered laser and from beamstrahlung radiation. The couplings could best be measured using the backscattered laser photons with (Formula presented) and (Formula presented) at a 500 GeV collider and (Formula presented) at a 1 TeV collider, all at 95% C.L. Except for the relatively weak limits on (Formula presented) at (Formula presented) these sensitivities are the same order of magnitude as can be obtained from real single W-production demonstrating that additional information can be obtained from non-resonant final states.

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