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) |
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Article number | 117301 |
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 59 |
Issue number | 11 |
DOIs | |
State | Published - Jun 1 1999 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)