ar X iv : h ep - p h / 06 10 21 0 v 1 1 7 O ct 2 00 6 Can we probe right - handed charged quark currents ?

نویسنده

  • Micaela Oertel
چکیده

Different scenarios of new physics beyond the standard model give rise to a direct coupling of right-handed quarks to W bosons. We will discuss how the prediction of the Callan-Treiman low energy theorem for the scalar Kπ form factor in combination with recent data on K μ3 decays can serve as a stringent test of the standard model (SM) and possible extensions, in particular right-handed charged quark currents (RHCs). In addition, we will comment on the impact of hadronic tau decay data on RHCs.

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تاریخ انتشار 2006