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We propose a non-supersymmetric SU(5) model in which only the third family of fermions are unified. The model remedies the non-unification of the three Standard Model couplings in non-supersymmetric SU(5). It also provides a mechanism for…

High Energy Physics - Phenomenology · Physics 2012-11-26 Shreyashi Chakdar , Tianjun Li , S. Nandi , Santosh Kumar Rai

The possibility of additional quarks and leptons beyond the three generations already established is discussed. The make-up of this Report is (I) Introduction: the motivations for believing that the present litany of elementary fermions is…

High Energy Physics - Phenomenology · Physics 2009-07-09 Paul H. Frampton , P. Q. Hung , Marc Sher

In the so-called 331-models the gauge anomalies cancel only if there are three generations of fermions. This requires one of the quark generations to be in a different representation than the other two. But which generation is treated…

High Energy Physics - Phenomenology · Physics 2024-09-23 Katri Huitu , Niko Koivunen , Timo Kärkkäinen , Subhadeep Mondal

The interactions and even the number of the Higgs scalar fields are not fixed in the SU(2)U(1) standard model of the electro-weak interactions and the intrinsically chiral nature of the weak interactions is not explained. Embedding…

High Energy Physics - Phenomenology · Physics 2008-07-01 Jean Thierry-Mieg

We suggest a new particle model based on the symmetry group $SU(3)_{C}\otimes SU(2)_{L}\otimes SU(2)_{L'}\otimes SU(2)_{R}\otimes U(1)_{B-L}\otimes SU(3)_{F}\otimes U(1)_{N}$. The family symmetry and the high-energy left-handed and…

High Energy Physics - Phenomenology · Physics 2010-11-23 Wei-Min Yang

In this article I expound an understanding of the quantum mechanics of so-called "indistinguishable" systems in which permutation invariance is taken as a symmetry of a special kind, namely the result of representational redundancy. This…

Quantum Physics · Physics 2014-09-02 Adam Caulton

New dynamical mechanism of quark mass generations and mixing is demonstrated in the examples of three and four generations. In the framework of the new mixing pattern, called the coherent mixing, the CKM elements are predicted compatible…

High Energy Physics - Phenomenology · Physics 2011-05-05 Yu. A. Simonov

The group E_6 for grand unification is combined with the generation symmetry group SO(3) x Z(2). The coupling matrices in the Yukawa interaction are identified with the vacuum expectation values of scalar flavons. The symmetric part of this…

High Energy Physics - Phenomenology · Physics 2012-04-20 Berthold Stech

We investigate the experimentally allowed parameter space of an extension of the standard model (SM3) by one additional family of fermions. Therefore we extend our previous study of the CKM like mixing constraints of a fourth generation of…

High Energy Physics - Phenomenology · Physics 2010-12-13 Otto Eberhardt , Alexander Lenz , Jürgen Rohrwild

Despite the enormous achievements, the Standard model of Particle physics can not be consider as complete theory of fundamental interactions. Among other things, it can not describe the gravitational interaction and it depends on 19…

High Energy Physics - Phenomenology · Physics 2015-02-02 Branislav Sazdovic

Starting with the usual definitions of octonions, an attempt has been made to establish the relations between octonion basis elements and Gell-Mann \lambda matrices of SU(3)symmetry on comparing the multiplication tables for Gell-Mann…

General Physics · Physics 2015-06-04 B. C. Chanyal , P. S. Bisht , Tianjun Li , O. P. S. Negi

We point out a somewhat mysterious appearance of $SU_c(3)$ representations, which exhibit the behaviour of three full generations of standard model particles. These representations are found in the Clifford algebra $\mathbb{C}l(6)$, arising…

High Energy Physics - Theory · Physics 2014-10-10 Cohl Furey

I briefly outline the most prominent features of a novel $SU(5)$ unification model proposal. The particle content of the model comprises $5_H$, $24_H$, $35_H$, ${\overline{5}_F}_i$, ${10_F}_i$, $15_F$, $\overline{15}_F$, and $24_V$, where…

High Energy Physics - Phenomenology · Physics 2022-06-14 Ilja Doršner

In the age of noisy quantum processors, the exploitation of quantum symmetries can be quite beneficial in the efficient preparation of trial states, an important part of the variational quantum eigensolver algorithm. The benefits include…

Quantum Physics · Physics 2023-08-21 Babatunde M. Ayeni

I present an argument, based on the topology of the universe, why there are three generations of fermions. The argument implies a preferred gauge group of SU(5), but with SO(10) representations of the fermions. The breaking pattern SU(5) to…

High Energy Physics - Phenomenology · Physics 2015-05-18 J. J. van der Bij

In the standard model, the permutation symmetry among the three generations of fundamental fermions is usually regarded to be broken by the Higgs couplings. It is found that the symmetry is restored if we include the mass matrix parameters…

High Energy Physics - Phenomenology · Physics 2020-09-17 T. K. Kuo , S. H. Chiu

In the Standard Model of elementary particles, quark-mixing is expressed in terms of a 3 x 3 unitary matrix V, the so called Cabibbo-Kobayashi-Maskawa (CKM) matrix. Significant unitarity checks are so far possible for the first row of this…

High Energy Physics - Phenomenology · Physics 2012-07-03 H. Abele , E. Barberio , D. Dubbers , F. Glueck , J. C. Hardy , W. J. Marciano , A. Serebrov , N. Severijns

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 propose and analyze an approach to realize quantum computation and simulation using fermionic particles under quantum gas microscopes. Our work is inspired by a recent experimental demonstration of large-scale quantum registers, where…

Quantum Physics · Physics 2023-06-07 Xiangkai Sun , Di Luo , Soonwon Choi

We propose a viable theory based on the $SU(3)_C\times SU(3)_L\times U(1)_X$ gauge group supplemented by the $S_4$ discrete group together with other various symmetries, whose spontaneous breaking gives rise to the current SM fermion mass…

High Energy Physics - Phenomenology · Physics 2020-03-02 A. E. Cárcamo Hernández , Nicolás A. Pérez-Julve , Yocelyne Hidalgo Velásquez