Falsifying Models of New Physics via WW Scattering

Jacques Distler, Benjamin Grinstein, Rafael A. Porto, and Ira Z. Rothstein
Phys. Rev. Lett. 98, 041601 – Published 22 January 2007

Abstract

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 cutoff of 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.

  • Figure
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  • Received 2 October 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.041601

©2007 American Physical Society

Authors & Affiliations

Jacques Distler1, Benjamin Grinstein2, Rafael A. Porto3, and Ira Z. Rothstein3

  • 1University of Texas, Dept. of Physics, Austin, Texas 78712, USA
  • 2University of California, San Diego, Dept. of Physics, La Jolla, California 92093-0319, USA
  • 3Carnegie-Mellon University, Dept. of Physics, Pittsburgh, Pennsylvania 15213, USA

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Issue

Vol. 98, Iss. 4 — 26 January 2007

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