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Title: Neutrino masses in the Lee-Wick standard model

Abstract

Recently, an extension of the standard model based on ideas of Lee and Wick has been discussed. This theory is free of quadratic divergences and hence has a Higgs mass that is stable against radiative corrections. Here, we address the question of whether or not it is possible to couple very heavy particles, with masses much greater than the weak scale, to the Lee-Wick standard model degrees of freedom and still preserve the stability of the weak scale. We show that in the LW-standard model the familiar seesaw mechanism for generating neutrino masses preserves the solution to the hierarchy puzzle provided by the higher derivative terms. The very heavy right-handed neutrinos do not destabilize the Higgs mass. We give an example of new heavy degrees of freedom that would destabilize the hierarchy, and discuss a general mechanism for coupling other heavy degrees of freedom to the Higgs doublet while preserving the hierarchy.

Authors:
 [1];  [2]; ;  [3]
  1. IFT-UAM/CSIC, Cantoblanco, 28049 Madrid (Spain)
  2. Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States)
  3. California Institute of Technology, Pasadena, California 91125 (United States)
Publication Date:
OSTI Identifier:
21250037
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 77; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.77.085002; (c) 2008 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; COUPLING; DEGREES OF FREEDOM; HIGGS MODEL; LEE MODEL; MASS; MATHEMATICAL SOLUTIONS; NEUTRINOS; RADIATIVE CORRECTIONS; STABILITY; STANDARD MODEL; WICK THEOREM

Citation Formats

Espinosa, Jose Ramon, Grinstein, Benjamin, O'Connell, Donal, and Wise, Mark B. Neutrino masses in the Lee-Wick standard model. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.77.085002.
Espinosa, Jose Ramon, Grinstein, Benjamin, O'Connell, Donal, & Wise, Mark B. Neutrino masses in the Lee-Wick standard model. United States. doi:10.1103/PHYSREVD.77.085002.
Espinosa, Jose Ramon, Grinstein, Benjamin, O'Connell, Donal, and Wise, Mark B. Tue . "Neutrino masses in the Lee-Wick standard model". United States. doi:10.1103/PHYSREVD.77.085002.
@article{osti_21250037,
title = {Neutrino masses in the Lee-Wick standard model},
author = {Espinosa, Jose Ramon and Grinstein, Benjamin and O'Connell, Donal and Wise, Mark B.},
abstractNote = {Recently, an extension of the standard model based on ideas of Lee and Wick has been discussed. This theory is free of quadratic divergences and hence has a Higgs mass that is stable against radiative corrections. Here, we address the question of whether or not it is possible to couple very heavy particles, with masses much greater than the weak scale, to the Lee-Wick standard model degrees of freedom and still preserve the stability of the weak scale. We show that in the LW-standard model the familiar seesaw mechanism for generating neutrino masses preserves the solution to the hierarchy puzzle provided by the higher derivative terms. The very heavy right-handed neutrinos do not destabilize the Higgs mass. We give an example of new heavy degrees of freedom that would destabilize the hierarchy, and discuss a general mechanism for coupling other heavy degrees of freedom to the Higgs doublet while preserving the hierarchy.},
doi = {10.1103/PHYSREVD.77.085002},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 77,
place = {United States},
year = {Tue Apr 15 00:00:00 EDT 2008},
month = {Tue Apr 15 00:00:00 EDT 2008}
}