Charge asymmetries in γγ\to \ell^+\ell^-+ ν's (\ell=μ, e) with polarized photons in the Standard Model

Anipko, D. A.; Cannoni, M.; Ginzburg, I. F.; Kanishev, K. A.; Pak, A. V.; Panella, O.

Charge asymmetries in γγ\to \ell^+\ell^-+ ν's (\ell=μ, e) with polarized photons in the Standard Model

Authors

Description

It is shown that in reaction γγ\to\ell^+\ell^-+ν's at \sqrt{s}>200 GeV with polarized photons, large and well observable differences arise in the distribution of positive and negative charged leptons (\ell=μ^\pm, e^\pm), (charge asymmetry). The modification due to the contribution of the cascade processes with intermediate τ-lepton in γγ\to W^\pm\ell^\mp + ν's reaction is taken into account. This charge asymmetry is potentially sensitive to effects of physics beyond the standard model at the anticipated luminosity of the Photon Collider mode of the future international linear collider.
Revtex4 two column format, 14 figures, added some comments to match the published version