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We construct UV completions of bottom-up models with a pseudo Nambu-Goldstone Boson (NGB) composite Higgs and partial compositeness, admitting a weakly coupled description of the composite sector. This is identified as the low energy…

High Energy Physics - Phenomenology · Physics 2015-06-12 Francesco Caracciolo , Alberto Parolini , Marco Serone

We consider the construction of $SU(2)_{L}\otimes SU(2)_{R}\otimes SU(4)$ partial unification models as an example of phenomenologically acceptable unification models in the absence of supersymmetry in non-commutative geometry. We exploit…

High Energy Physics - Phenomenology · Physics 2009-10-22 B. E. Hanlon , G. C. Joshi

We show, in the case of a U(1)L spontaneously broken gauge theory, how introducing a composite Wess-Zumino field, with a derivative coupling to the fermionic current, and a composite scalar sector leads to infinitely massive quarks and…

High Energy Physics - Phenomenology · Physics 2008-02-03 B. Machet

We show that the local conformal group $C$ is a natural symmetry group of strong, electroweak and gravitational interactions. A model for these interactions invariant under the local symmetry group $G=SU(3)\times SU(2)_{L}\times U(1)\times…

High Energy Physics - Phenomenology · Physics 2008-02-03 Marek Pawlowski , Ryszard Raczka

We present a SU(2)_L * SU(2)_R * U(1) left-right symmetric model for elementary particles and their connection with the fermion mass spectrum. New mirror fermions and a minimal set of Higgs particles are proposed. The model can accommodate…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. A. Martins Simoes , Y. A. Coutinho , C. M. Porto

We present some phenomenology of the Higgs sector of the Minimal $B-L$ U(1) Extension of the Standard Model at the Large Hadron Collider. In this model, the existence of an extra gauge boson ($Z'$) and an extra scalar (heavy Higgs) are…

High Energy Physics - Phenomenology · Physics 2011-01-03 L. Basso , A. Belyaev , S. Moretti , G. M. Pruna

One of the simplest extensions of the Standard Model is the inclusion of an additional scalar multiplet, and we consider scalars in the $SU(2)_L$ singlet, triplet, and quartet representations. We examine models with heavy neutral scalars,…

High Energy Physics - Phenomenology · Physics 2017-08-09 Sally Dawson , Christopher W. Murphy

We propose a new non-universal $U(1)'$ extension of the standard model with the addition of three exotic quark singlets, two scalar singlets and one additional scalar doublet. We obtain family dependent couplings with a new $Z'$ boson in…

High Energy Physics - Phenomenology · Physics 2014-03-24 R. Martinez , J. Nisperuza , F. Ochoa , J. P. Rubio

We consider a Dirac equation set on an extended spin space that contains fermion and boson solutions. At given dimension, it determines the scalar symmetries. The standard field equations can be equivalently written in terms of such degrees…

High Energy Physics - Theory · Physics 2015-06-26 J. Besprosvany

In the Standard Model, there is the single Higgs field, $\phi$, which gives rise to constituent quark and lepton masses. The Yukawa coupling is a highly complex set of $3 \times 3$ matrices, resulting in many textures of quark and lepton…

High Energy Physics - Phenomenology · Physics 2015-06-22 Ngee-Pong Chang

We study the scalar Higgs sector of the next-to-minimal supersymmetric standard model with an extra U(1), which has two Higgs doublets and a Higgs singlet, in the light leptophobic $Z'$ scenario where the extra neutral gauge boson $Z'$ does…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. W. Ham , E. J. Yoo , S. K. OH , D. Son

In the standard model of electroweak interactions the Higgs doublet is replaced by a complex vector doublet and a real vector singlet. The gauge symmetry is broken dynamically by a mixed condensate of the doublet and singlet vector fields.…

High Energy Physics - Phenomenology · Physics 2009-11-10 G. Cynolter , E. Lendvai , G. Pocsik

We study all possible $U(1)$-extensions of the standard model (SM) in the framework of noncommutative geometry (NCG) with the algebra $\hhh\op\cc\op\cc\op M_3(\cc)$. Comparison to experimental data about the mass of a hypothetical $Z'$…

High Energy Physics - Theory · Physics 2007-05-23 Thomas Krajewski , Igor Pris

Nonzero masses for the active neutrinos - regardless of their nature or origin - arise only after electroweak symmetry breaking. We discuss the parameterization of neutrino couplings to a Higgs sector consisting of one SU(2)_L scalar…

High Energy Physics - Phenomenology · Physics 2011-09-08 Andre de Gouvea , Wei-Chih Huang , Shashank Shalgar

We consider general fermi-phobic scenarios in which excess events in diphoton or WW/ZZ resonances may be seen at LHC. These Higgs like signals do not necessarily suggest that the new resonance is a particle with Yukawa couplings nor do we…

High Energy Physics - Phenomenology · Physics 2015-03-20 Linda M. Carpenter , Jessica Goodman

A possible generalization of the technique of the standard model to $SU(n)\otimes U(1)$ gauge models is proposed. A special Higgs mechanism and a new kind of Yukawa couplings in unitary gauge are introduced. These allow us to obtain a…

High Energy Physics - Phenomenology · Physics 2009-10-28 Ion I. Cotăescu

After the observation in 2012 of a new scalar particle closely resembling the Higgs boson of the Standard Model of particle physics, there is a general consensus that there must be Physics Beyond the Standard Model, with present experiments…

High Energy Physics - Phenomenology · Physics 2025-09-24 Rafael Boto

The noncommutative spectral action extends our familiar notion of commutative spaces, using the data encoded in a spectral triple on an almost commutative space. Varying a rather simple action, one can derive all of the standard model of…

High Energy Physics - Theory · Physics 2010-11-11 William Nelson , Joseph Ochoa , Mairi Sakellariadou

We construct a gauge field model based on $SU(2)_L\times SU(2)_R\times U(1)_Y \times \pi_4(SU(2)_L\times SU(2)_R\times U(1)_Y) $ from the principle that both the original gauge group $G_{YM}$ and the discrete group $\pi_4(G_{YM})$ should be…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bin Chen , Han-Ying Guo , Hong-Bo Teng

Assuming the existence of a supersymmetric U(1) gauge factor at the TeV energy scale (motivated either by the superstring-inspired E_6 model or low-energy electroweak phenomenology), several important consequences are presented. The…

High Energy Physics - Phenomenology · Physics 2009-10-30 Ernest Ma