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Leptophobic Z′ in models with multiple Higgs doublet fields
- Physics
- 2015
A bstractWe study the collider phenomenology of the leptophobic Z′ boson from an extra U(1)′ gauge symmetry in models with N -Higgs doublet fields. We assume that the Z′ boson at tree level has (i)…
Phenomenology of E6-inspired leptophobic Z′ boson at the LHC
- Physics
- 2014
A bstractWe study collider phenomenology of a leptophobic Z′ boson existing in eight scenarios of the E6 grand unified theory, differing in particle embeddings. We first review the current bound on…
Low energy theorems and the unitarity bounds in the extra U ( 1 ) superstring inspired E 6 models
- Physics
- 2005
The conventional method using low energy theorems derived by Chanowitz et al. [Phys. Rev. Lett. 57, 2344 (1986);] does not seem to lead to an explicit unitarity limit in the scattering processes of…
Perturbative unification of gauge couplings in supersymmetric E6 models
- Physics
- 2016
We study gauge coupling unification in supersymmetric (SUSY) E6 models where an additional U(1)′ gauge symmetry is broken near the TeV scale and a number of exotic matter fields from the 27…
Flavour-changing neutral currents in models with extraZ′ boson
- Physics
- 2004
New neutral gauge bosonsZ′ are the features of many models addressing the physics beyond the standard model. Together with the existence of new neutral gauge bosons, models based on extended gauge…
Flavor changing effects in family nonuniversal Z' models
- Physics
- 2006
Flavor-changing and CP-violating interactions of Z' to fermions are generally present in models with extra U(1) gauge symmetry that are string-inspired or related to broken gauged family symmetry. We…
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