Higgs boson self-coupling from two-loop analysis
- Physics Department, King Saud University, P. O. Box 2455, Riyadh 11451 (Saudi Arabia)
The scale invariant of the effective potential of the standard model at two loop is used as a boundary condition under the assumption that the two-loop effective potential approximates the full effective potential. This condition leads with the help of the renormalization-group functions of the model at two loop to an algebraic equation of the scalar self-coupling with coefficients that depend on the gauge and the top quark couplings. It admits only two real positive solutions. One of them, in the absence of the gauge and top quark couplings, corresponds to the nonperturbative ultraviolet fixed point of the scalar renormalization-group function and the other corresponds to the perturbative infrared fixed point. The dependence of the scalar coupling on the top quark and the strong couplings at two-loop radiative corrections is analyzed.
- OSTI ID:
- 21432950
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevD.82.053008; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
APPROXIMATIONS
BOUNDARY CONDITIONS
COUPLING
EQUATIONS
GAUGE INVARIANCE
HIGGS BOSONS
MATHEMATICAL SOLUTIONS
PERTURBATION THEORY
RADIATIVE CORRECTIONS
RENORMALIZATION
SIMULATION
STANDARD MODEL
STRONG-COUPLING MODEL
T QUARKS
ULTRAVIOLET RADIATION
BOSONS
CALCULATION METHODS
CORRECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARKS
RADIATIONS
TOP PARTICLES
UNIFIED GAUGE MODELS