TY - JOUR
T1 - Minimal Lee-Wick extension of the Standard Model
AU - Carone, Christopher D.
AU - Lebed, Richard
N1 - Funding Information:
This work was supported by the NSF under Grant Nos. PHY-0456525 and PHY-0757481 (C.D.C.) and PHY-0456520 (R.F.L.). C.D.C. thanks Arizona State University and R.F.L. thanks the Institute for Nuclear Theory for hospitality during part of the time in which this work was performed.
PY - 2008/10/9
Y1 - 2008/10/9
N2 - We consider a minimal Lee-Wick (LW) extension to the Standard Model in which the fields providing the most important contributions to the cancellation of quadratic divergences are the lightest. Partners to the SU(2) gauge bosons, Higgs, top quark, and left-handed bottom quark are retained in the low-energy effective theory, which is valid up to approximately 10 TeV; the remaining LW partners appear above this cutoff and complete the theory in the ultraviolet. We determine the constraints on the low-energy spectrum from the electroweak parameters S and T, and find LW states within the kinematic reach of the LHC at the 95% confidence level.
AB - We consider a minimal Lee-Wick (LW) extension to the Standard Model in which the fields providing the most important contributions to the cancellation of quadratic divergences are the lightest. Partners to the SU(2) gauge bosons, Higgs, top quark, and left-handed bottom quark are retained in the low-energy effective theory, which is valid up to approximately 10 TeV; the remaining LW partners appear above this cutoff and complete the theory in the ultraviolet. We determine the constraints on the low-energy spectrum from the electroweak parameters S and T, and find LW states within the kinematic reach of the LHC at the 95% confidence level.
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U2 - 10.1016/j.physletb.2008.08.050
DO - 10.1016/j.physletb.2008.08.050
M3 - Article
AN - SCOPUS:52049105150
SN - 0370-2693
VL - 668
SP - 221
EP - 225
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3
ER -