One-loop effects of extra dimensions on the WW{gamma} and WWZ vertices

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.016011· OSTI ID:21503912

Flores-Tlalpa, A; Novales-Sanchez, H; Toscano, J J ^[1]; Montano, J ^[2]; Ramirez-Zavaleta, F ^[3]

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1. Facultad de Ciencias Fisico Matematicas, Benemerita Universidad Autonoma de Puebla, Apartado Postal 1152, Puebla, Puebla (Mexico)
2. Departamento de Fisica, CINVESTAV, A. P. 14-740, 07000, Mexico, D. F. (Mexico)
3. Facultad de Ciencias Fisico Matematicas, Universidad Michoacana de San Nicolas de Hidalgo, Avenida Francisco J. Mujica S/N, 58060, Morelia, Michoacan (Mexico)

The one-loop contribution of the excited Kaluza-Klein (KK) modes of the SU{sub L}(2) gauge group on the off-shell W{sup -}W{sup +}{gamma} and W{sup -}W{sup +}Z vertices is calculated in the context of a pure Yang-Mills theory in five dimensions and its phenomenological implications discussed. The use of a gauge-fixing procedure for the excited KK modes that is covariant under the standard gauge transformations of the SU{sub L}(2) group is stressed. A gauge-fixing term and the Faddeev-Popov ghost sector for the KK gauge modes that are separately invariant under the standard gauge transformations of SU{sub L}(2) are presented. It is shown that the one-loop contributions of the KK modes to the off-shell W{sup -}W{sup +}{gamma} and W{sup -}W{sup +}Z vertices are free of ultraviolet divergences and well-behaved at high energies. It is found that for a size of the fifth dimension of R{sup -1{approx}}1 TeV, the one-loop contribution of the KK modes to these vertices is about 1 order of magnitude lower than the corresponding standard model radiative correction. This contribution is similar to the one estimated for new gauge bosons contributions in other contexts. Tree-level effects on these vertices induced by operators of higher canonical dimension are also investigated. It is found that these effects are lower than those generated at the one-loop order by the KK gauge modes.

• OSTI ID: 21503912
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevD.83.016011; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CANONICAL DIMENSION
COMPUTERIZED SIMULATION
FADDEEV EQUATIONS
GAMMA RADIATION
GAUGE INVARIANCE
KALUZA-KLEIN THEORY
MANY-DIMENSIONAL CALCULATIONS
PHOTONS
RADIATIVE CORRECTIONS
STANDARD MODEL
SU GROUPS
TEV RANGE 01-10
ULTRAVIOLET DIVERGENCES
W MINUS BOSONS
W PLUS BOSONS
YANG-MILLS THEORY
Z NEUTRAL BOSONS
CORRECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
FIELD THEORIES
GRAND UNIFIED THEORY
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
IONIZING RADIATIONS
LIE GROUPS
MASSLESS PARTICLES
MATHEMATICAL MODELS
PARTICLE MODELS
QUANTUM FIELD THEORY
RADIATIONS
SCALE DIMENSION
SIMULATION
SYMMETRY GROUPS
TEV RANGE
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES