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Inverse amplitude method and Adler zeros

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Gómez Nicola, Ángel and Peláez Sagredo, José Ramón and Rios, G. (2008) Inverse amplitude method and Adler zeros. Physical review D, 77 (5). ISSN 1550-7998

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Official URL: http://dx.doi.org/10.1103/PhysRevD.77.056006


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Abstract

The inverse amplitude method is a powerful unitarization technique to enlarge the energy applicability region of effective Lagrangians. It has been widely used to describe resonances in hadronic physics, combined with chiral perturbation theory, as well as in the strongly interacting symmetry breaking sector. In this work we show how it can be slightly modified to also account for the subthreshold region, incorporating correctly the Adler zeros required by chiral symmetry and eliminating spurious poles. These improvements produce negligible effects on the physical region.


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©2008 The American Physical Society.
Research was partially funded by Banco Santander/Complutense Contract No. PR27/05-13955-BSCH and Spanish Contract No. FPA2007-29115-E, No. FPA2005-02327, No. FPA2004-02602, and No. UCM-CAM 910309. J. R. Pela´ez’s research is partly funded by Spanish Contract No. BFM2003-00856, and is part of the EU integrated infrastructure initiative HadronPhysics project, under Contract No. RII3-CT-2004-506078..

Uncontrolled Keywords:Chiral perturbation-theory; Symmetry-breaking sector; Equivalence theorem; Higgs bosons; One-loop; Scattering; Lagrangians; Model; Mass; π.
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:35239
Deposited On:26 Jan 2016 13:49
Last Modified:10 Dec 2018 15:09

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