RT Journal Article
T1 Higgs effective potential in the littlest Higgs model at the one-loop level
A1 Dobado González, Antonio
A1 Tabares Cheluci, Lourdes
A1 Peñaranda, Siannah
AB In this work we compute the contributions to the Higgs effective potential coming from the fermion and gauge boson sectors at the one-loop 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) x U(1))(1) x (SU(2) x U(1))(2) and the (SU(2) x U(1))(1) x (SU(2) x U(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 one-loop level. Finally, by neglecting the contribution of higher dimensional operators, we discuss the restrictions that the new one-loop contributions set on the parameter space of the LH model and the need to include higher loop corrections to the Higgs potential.
PB American Physical Society
SN 1550-7998
YR 2007
FD 2007-04
LK https://hdl.handle.net/20.500.14352/50715
UL https://hdl.handle.net/20.500.14352/50715
LA eng
NO © 2007 The American Physical Society.This work is supported by DGICYT (Spain) under Project No. BPA2005-02327. The work of S. P. is supported by the I3P-Contract of CSIC at IFIC—Instituto de Física Corpuscular, Valencia. The work of L. TabaresCheluci is supported by a FPU grant from the Spanish M.E.C.
NO DGICYT (Spain)
NO Instituto de Física Corpuscular, Valencia
NO FPU grant from the Spanish M.E.C.
DS Docta Complutense
RD 8 jun 2025