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SU(2)xU(1) electroweak gauge model without Higgs sector is extended by a new vector field C interacting with leptons and quarks of both chiralities. This interaction is treated under a dynamical assumption in a self-consistent…

High Energy Physics - Phenomenology · Physics 2009-09-25 Jiri Hosek

We propose a viable model based on the $SU(3)_C\times SU(3)_L\times U(1)_X$ gauge group, augmented by the $U(1)_{L_g}$ global lepton number symmetry and the $\Delta(27) \times Z_3\times Z_{16}$ discrete group, capable of explaining the…

High Energy Physics - Phenomenology · Physics 2018-10-05 A. E. Cárcamo Hernández , H. N. Long , V. V. Vien

We study a non-universal $U(1)_{X}$ extension of the Standard Model with an extended scalar sector of two doublets and one singlet plus three additional exotic quarks and two exotic charged leptons on the fermionic sector. In order to…

High Energy Physics - Phenomenology · Physics 2023-11-29 J. S. Alvarado , S. F. Mantilla , R. Martinez , F. Ochoa , Cristian Sierra

We investigate a local $SU(3)_F$ flavour symmetry for its viability in generating the masses for the quarks and charged leptons of the first two families through radiative corrections. Only the third-generation fermions get tree-level…

High Energy Physics - Phenomenology · Physics 2023-10-24 Gurucharan Mohanta , Ketan M. Patel

We examine extensions of the Standard Model (SM), basing our assumptions on what has already been observed; we don't consider anything fundamentally different, such as grand unification or supersymmetry, which is not directly suggested by…

High Energy Physics - Phenomenology · Physics 2009-10-28 C. D. Froggatt , H. B. Nielsen , D. J. Smith

We argue in favor of dynamical mass generation in an SU(2)xU(1) electroweak model with two complex scalar doublets with ordinary masses. The masses of leptons and quarks are generated by ultraviolet-finite non-perturbative solutions of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tomas Brauner , Jiri Hosek

We present a model of fermion masses based on a minimal, non-Abelian discrete symmetry that reproduces the Yukawa matrices usually associated with U(2) theories of flavor. Mass and mixing angle relations that follow from the simple form of…

High Energy Physics - Phenomenology · Physics 2014-11-17 Alfredo Aranda , Christopher D. Carone , Richard F. Lebed

The standard model of particle physics is generalized so as to be furnished with a horizontal symmetry generated by an intermediary algebra between simple Lie algebras $\mathfrak{su}(2)$ and $\mathfrak{su}(3)$. Above a certain high energy…

High Energy Physics - Phenomenology · Physics 2010-01-15 Ikuo S. Sogami

In the Standard Model, Yukawa couplings parametrize the fermion masses and mixing angles with the exception of neutrino masses. The hierarchies and apparent regularities among the quark and lepton masses are, however, otherwise a mystery.…

High Energy Physics - Phenomenology · Physics 2022-11-07 Sudip Jana , Sophie Klett , Manfred Lindner

We propose a new extension of the Standard Model that incorporates a gauged \( U(1)_{\rm B-L} \) symmetry and the type-III seesaw mechanism to explain neutrino mass generation and provide a viable dark matter (DM) candidate. Unlike the…

High Energy Physics - Phenomenology · Physics 2026-01-27 Satyabrata Mahapatra , Partha Kumar Paul , Narendra Sahu , Prashant Shukla

We propose the $SU(3)_C\times SU(3)_L\times U(1)_X$ model arising from $SU(6)$ breaking. One family of the Standard Model (SM) fermions arises from two $\bar{6}$ representations and one $15$ representation of $SU(6)$ gauge symmetry. To…

High Energy Physics - Phenomenology · Physics 2020-11-23 Tianjun Li , Junle Pei , Fangzhou Xu , Wenxing Zhang

We construct an extension of the Standard Model (SM) which is based on grand unification with Pati-Salam symmetry. The setup is supplemented with the idea of spontaneous flavour symmetry breaking which is mediated through flavon fields with…

High Energy Physics - Phenomenology · Physics 2015-06-03 Thorsten Feldmann , Florian Hartmann , Wolfgang Kilian , Christoph Luhn

We propose a left-right symmetric electroweak extension of the Standard Model based on the $\Delta \left( 27\right)$ family symmetry. The masses of all electrically charged Standard Model fermions lighter than the top quark are induced by a…

High Energy Physics - Phenomenology · Physics 2019-05-14 A. E. Cárcamo Hernández , Sergey Kovalenko , José W. F. Valle , C. A. Vaquera-Araujo

The Dualized Standard Model offers a natural place both to Higgs fields and to fermion generations with Higgs fields appearing as frame vectors in internal symmetry space and generation appearing as dual colour. If they are assigned those…

High Energy Physics - Phenomenology · Physics 2011-04-15 HM Chan , ST Tsou

We argue that simpler fermionic contents, responsible for the extension of the standard model with gauged lepton and baryon charges, can be constructed by assuming existence of so-called leptoquarks (j,k) with exotic electric charges…

High Energy Physics - Phenomenology · Physics 2017-05-25 P. V. Dong , H. N. Long

A new dynamical symmetry breaking model of electroweak interactions is proposed based on interacting fermions. Two fermions of different SU_{L}(2) representations form a symmetry breaking condensate and generate the lepton and quark masses.…

High Energy Physics - Phenomenology · Physics 2009-01-07 G. Cynolter , E. Lendvai , G. Pocsik

Extended scalar and fermion sectors offer new opportunities for generating the observed strong hierarchies in the fermion mass and mixing patterns of the Standard Model (SM). In this work, we elaborate on the prospects of a particular…

High Energy Physics - Phenomenology · Physics 2019-06-17 A. E. Cárcamo Hernández , Sergey Kovalenko , Roman Pasechnik , Ivan Schmidt

We consider the possibility that the standard model Higgs fields may originate from extra components of higher dimensional gauge fields. Theories of this type considered before have had problems accommodating the standard model fermion…

High Energy Physics - Phenomenology · Physics 2008-11-26 Csaba Csaki , Christophe Grojean , Hitoshi Murayama

Including contributions of scale-dependent vacuum expectation values, we derive new analytic formulas and obtain substantially different numerical predictions for the running masses of quarks and charged-leptons at higher scales in the SM,…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. R. Das , M. K. Parida

The framed standard model (FSM) is obtained from the standard model by incorporating, as field variables, the frame vectors (vielbeins) in internal symmetry space. It gives the standard Higgs boson and 3 generations of quarks and leptons as…

High Energy Physics - Phenomenology · Physics 2015-06-23 J Bordes , HM Chan , ST Tsou