2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43938The difference in distributions of $μ^+$ and $μ^-$ in reactions $γγ\to μ^+μ^-+ν\barν$ and $γγ\to W^\pmμ^\mp +ν(\barν)$ with polarized photons at $\sqrt{s}>200$ GeV is a large observable effect which is sensitive to New Physics phenomena.4 pages, talk presented by I. F. Ginzburg at LCWS04, International Conference on Linear Collider, 19-23 April 2004, Paris, France, to appear in the ProceedingsHigh Energy Physics - Phenomenologytext