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Title: Falsifying Models of New Physics via WW Scattering

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.

Authors:
 [1];  [2]; ;  [3]
  1. University of Texas, Dept. of Physics, Austin, Texas 78712 (United States)
  2. University of California, San Diego, Dept. of Physics, La Jolla, California 92093-0319 (United States)
  3. Carnegie-Mellon University, Dept. of Physics, Pittsburgh, Pennsylvania 15213 (United States)
Publication Date:
OSTI Identifier:
20861631
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevLett.98.041601; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHIRALITY; LAGRANGIAN FUNCTION; LORENTZ INVARIANCE; RESONANCE; SCATTERING; STRING MODELS; UNITARITY

Citation Formats

Distler, Jacques, Grinstein, Benjamin, Porto, Rafael A., and Rothstein, Ira Z.. Falsifying Models of New Physics via WW Scattering. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.041601.
Distler, Jacques, Grinstein, Benjamin, Porto, Rafael A., & Rothstein, Ira Z.. Falsifying Models of New Physics via WW Scattering. United States. doi:10.1103/PHYSREVLETT.98.041601.
Distler, Jacques, Grinstein, Benjamin, Porto, Rafael A., and Rothstein, Ira Z.. Fri . "Falsifying Models of New Physics via WW Scattering". United States. doi:10.1103/PHYSREVLETT.98.041601.
@article{osti_20861631,
title = {Falsifying Models of New Physics via WW Scattering},
author = {Distler, Jacques and Grinstein, Benjamin and Porto, Rafael A. and Rothstein, Ira Z.},
abstractNote = {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.},
doi = {10.1103/PHYSREVLETT.98.041601},
journal = {Physical Review Letters},
number = 4,
volume = 98,
place = {United States},
year = {Fri Jan 26 00:00:00 EST 2007},
month = {Fri Jan 26 00:00:00 EST 2007}
}
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