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We consider the Standard Model with an extended scalar sector, and study thepossible effects of the physics underlying such a model using an effectivelagrangian parametrization. It is found that certain two photon processes offerwindows where such heavy interactions might be glimpsed, but the realization ofthis expectation requires enormous experimental precision.Comment: requires phyzzx and epsf; figures in a companion (compressed encoded)  fil

Two photon processes and effective Lagrangians with an extended scalar sector