Flavor changing neutral currents in the 3-3-1 model with right-handed neutrinos

Journal Article · Tue Dec 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.113009· OSTI ID:21313451

Benavides, Richard H ^[1]; Giraldo, Yithsbey ^[1]; Ponce, William A ^[1]

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1. Instituto de Fisica, Universidad de Antioquia, Medellin (Colombia)

Flavor changing neutral currents coming from a new nonuniversal neutral gauge boson and from the nonunitary quark mixing matrix for the SU(3){sub c} x SU(3){sub L} x U(1){sub X} model with right-handed neutrinos are studied. By imposing as experimental constraints the measured values of the 3x3 quark mixing matrix, the neutral meson mixing, and bounds and measured values for direct flavor changing neutral current processes, the largest mixing of the known quarks with the exotic ones can be established, with new sources of flavor changing neutral currents being identified. Our main result is that for a |V{sub tb}| value smaller than 1, large rates of rare top decays such as t{yields}c{gamma}, t{yields}cZ, and t{yields}cg (where g stands for the gluon field) are obtained; but if |V{sub tb}|{approx}1 the model can survive present experimental limits only if the mass of the new neutral gauge bosons becomes larger that 10 TeV.

• OSTI ID: 21313451
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FLAVOR MODEL
GLUONS
MASS
MESONS
MIXING
NEUTRAL CURRENTS
NEUTRINOS
PARTICLE DECAY
QUARKS
SIMULATION
SU-3 GROUPS
TEV RANGE 01-10
U-1 GROUPS