Falsifying Models of New Physics Via WW Scattering

Details Falsifying Models of New Physics Via WW Scattering Falsifying Models of New Physics Via WW Scattering

2006-04-27

arxiv.org/abs/hep-ph/0604255v4

Phys.Rev.Lett.98:041601,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, LaTeX2e (revtex4); argument completely revisited, stronger and more pertinent bounds given

Scientific paper

10.1103/PhysRevLett.98.041601

We show that the coefficients of operators in the electroweak chiral Lagrangian can be bounded if the underlying theory obeys the usual assumptions of Lorentz invariance, analyticity, unitarity and crossing to arbitrarily short distances. Violations of these bounds can be explained by either the existence of new physics below the naive cut-off of the the effective theory, or by the breakdown of one of these assumptions in the short distance theory. As a corollary, if no light resonances are found, then a measured violation of the bound would falsify generic models of string theory.

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