Abstract
We study the WWγ gauge boson coupling in the process eγ→νqq̄ 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 e+e- 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 |δκγ| ≤=0.08 and -0.07<λ<0.10 at a 500 GeV collider and |λγ|≤0.03 at a 1 TeV collider, all at 95% C.L. Except for the relatively weak limits on δκ at √s = 1 TeV, 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 language | English (US) |
|---|---|
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 59 |
| Issue number | 11 |
| State | Published - Jun 1 1999 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
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Measurement of the WWγ coupling in the process eγ→νqq̄ off the W-boson resonance. / Doncheski, Michael A.; Godfrey, Stephen; Peterson, K. Andrew.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 59, No. 11, 01.06.1999, p. 1-4.Research output: Contribution to journal › Article
TY - JOUR
T1 - Measurement of the WWγ coupling in the process eγ→νqq̄ off the W-boson resonance
AU - Doncheski, Michael A.
AU - Godfrey, Stephen
AU - Peterson, K. Andrew
PY - 1999/6/1
Y1 - 1999/6/1
N2 - We study the WWγ gauge boson coupling in the process eγ→νqq̄ 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 e+e- 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 |δκγ| ≤=0.08 and -0.07<λ<0.10 at a 500 GeV collider and |λγ|≤0.03 at a 1 TeV collider, all at 95% C.L. Except for the relatively weak limits on δκ at √s = 1 TeV, 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 WWγ gauge boson coupling in the process eγ→νqq̄ 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 e+e- 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 |δκγ| ≤=0.08 and -0.07<λ<0.10 at a 500 GeV collider and |λγ|≤0.03 at a 1 TeV collider, all at 95% C.L. Except for the relatively weak limits on δκ at √s = 1 TeV, 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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M3 - Article
AN - SCOPUS:17144409983
VL - 59
SP - 1
EP - 4
JO - Physical Review D
JF - Physical Review D
SN - 0556-2821
IS - 11
ER -