Higgs effective potential in the littlest Higgs model at the oneloop level
Abstract
In this work we compute the contributions to the Higgs effective potential coming from the fermion and gauge boson sectors at the oneloop level in the context of the SU(5)/SO(5) littlest Higgs (LH) model using a cutoff {lambda} and including all finite parts. We consider both, the (SU(2)xU(1)){sub 1}x(SU(2)xU(1)){sub 2} and the (SU(2)xU(1)){sub 1}x(SU(2)xU(1)) gauge group versions of the LH model. We also show that the Goldstone bosons present in the model do not contribute to the effective potential at the oneloop level. Finally, by neglecting the contribution of higher dimensional operators, we discuss the restrictions that the new oneloop contributions set on the parameter space of the LH model and the need to include higher loop corrections to the Higgs potential.
 Authors:
 Departamento de Fisica Teorica, Universidad Complutense de Madrid, 28040 Madrid (Spain)
 (Spain)
 Publication Date:
 OSTI Identifier:
 21020369
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.75.083527; (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; CORRECTIONS; FERMIONS; GAUGE INVARIANCE; GOLDSTONE BOSONS; HIGGS BOSONS; HIGGS MODEL; POTENTIALS; QUANTUM FIELD THEORY; SO5 GROUPS; SU2 GROUPS; U1 GROUPS
Citation Formats
Dobado, Antonio, TabaresCheluci, Lourdes, Penaranda, Siannah, and IFICInstituto de Fisica Corpuscular, CSICUniversitat de Valencia, Apartado de Correos 22085, E46071 Valencia. Higgs effective potential in the littlest Higgs model at the oneloop level. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.083527.
Dobado, Antonio, TabaresCheluci, Lourdes, Penaranda, Siannah, & IFICInstituto de Fisica Corpuscular, CSICUniversitat de Valencia, Apartado de Correos 22085, E46071 Valencia. Higgs effective potential in the littlest Higgs model at the oneloop level. United States. doi:10.1103/PHYSREVD.75.083527.
Dobado, Antonio, TabaresCheluci, Lourdes, Penaranda, Siannah, and IFICInstituto de Fisica Corpuscular, CSICUniversitat de Valencia, Apartado de Correos 22085, E46071 Valencia. Sun .
"Higgs effective potential in the littlest Higgs model at the oneloop level". United States.
doi:10.1103/PHYSREVD.75.083527.
@article{osti_21020369,
title = {Higgs effective potential in the littlest Higgs model at the oneloop level},
author = {Dobado, Antonio and TabaresCheluci, Lourdes and Penaranda, Siannah and IFICInstituto de Fisica Corpuscular, CSICUniversitat de Valencia, Apartado de Correos 22085, E46071 Valencia},
abstractNote = {In this work we compute the contributions to the Higgs effective potential coming from the fermion and gauge boson sectors at the oneloop level in the context of the SU(5)/SO(5) littlest Higgs (LH) model using a cutoff {lambda} and including all finite parts. We consider both, the (SU(2)xU(1)){sub 1}x(SU(2)xU(1)){sub 2} and the (SU(2)xU(1)){sub 1}x(SU(2)xU(1)) gauge group versions of the LH model. We also show that the Goldstone bosons present in the model do not contribute to the effective potential at the oneloop level. Finally, by neglecting the contribution of higher dimensional operators, we discuss the restrictions that the new oneloop contributions set on the parameter space of the LH model and the need to include higher loop corrections to the Higgs potential.},
doi = {10.1103/PHYSREVD.75.083527},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}

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