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Charge asymmetries in \gamma\gamma \to \ell^+\ell^-+ \nu's (\ell=\mu, e) with polarized photons in the Standard Model

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Published Article
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DOI: 10.1103/PhysRevD.78.093009
Source
arXiv
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Abstract

It is shown that in reaction \gamma\gamma\to\ell^+\ell^-+\nu'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=\mu^\pm, e^\pm), (charge asymmetry). The modification due to the contribution of the cascade processes with intermediate \tau-lepton in \gamma \gamma \to W^\pm\ell^\mp + \nu'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.

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