Charge asymmetries in $γγ\to μ^+μ^- + ν_μ \barν_μ$ / $γγ\to W^\pmμ^\mp +ν_μ$ with polarized photons

Abstract

It is shown that the difference in the distributions of positive ($μ^+$) and negative charged leptons ($μ^-$) in reactions $γγ\to μ^+μ^-+ν\barν$ and $γγ\to W^\pmμ^\mp +ν(\barν)$ at $\sqrt{s}>200$ GeV leads to observable {\em charge asymmetry} of muons which is sensitive to New Physics effects.