Single $W$ Boson Production in High Energy $eγ$ Collisions

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dc.creatorGodfrey, Stephen
dc.creatorPeterson, K. Andrew
dc.date1993-02-27
dc.date.accessioned2026-07-07T03:55:57Z
dc.date.available2026-07-07T03:55:57Z
dc.descriptionWe studied single $W$ boson production in high energy $eγ$ collisions and the sensitivity of various observables to the $WWγ$ gauge boson coupling. We evaluated the helicity amplitudes including the $W$ decay to final state fermions and all Feynman diagrams which give the same final state. At high energy, the non-resonant diagrams give significant contributions to the cross sections and should not be neglected. We first considered a $\sqrt{s}=120$~GeV $e^+e^-$ collider converted to an $eγ$ collider by backscattering a low energy laser off of one of the original electron beams. Such a collider could measure $κ_γ$ to $\simeq\pm 0.09$ at 95\% C.L. which is the same level of precision as could be achieved at LEP200 using $W$ pair production. We next considered single $W$ production at a 200 GeV $e^+e^-$ collider in the Weizacker-Williams approximation which can measure the $WWγ$ vertex independently of the $WWZ$ vertex. This process can measure $κ_γ$ to $\pm 0.15$ at 95\% C.L. which is comparable to the $W$ pair production process. Finally, we examined $W$ production at 500 GeV and 1 TeV $e^+e^-$ colliders, comparing results for photon spectra obtained from a backscattered laser and from beamstrahlung radiation. Here we found that the couplings could best be measured using the backscattered laser photons with $|δκ_γ|\leq 0.07$ and
dc.description40 pages, 16 uuencoded figures, RevTex, OCIP/C 92-7
dc.identifierhttps://arxiv.org/abs/hep-ph/9302319
dc.identifierhttp://arxiv.org/abs/hep-ph/9302319
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/44759
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSingle $W$ Boson Production in High Energy $eγ$ Collisions
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