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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 present a supersymmetric model in which the observed fermion masses and mixings are generated by localizing the three generations of matter and the two Higgs fields at different locations in a compact extra dimension. Supersymmetry is…

High Energy Physics - Phenomenology · Physics 2014-11-17 David Elazzar Kaplan , Tim M. P. Tait

We discuss the mass splitting between the the top and bottom quarks in a technicolor scenario. The model proposed here contains a left-right electroweak gauge group. An extended technicolor group and mirror fermions are introduced. The…

High Energy Physics - Phenomenology · Physics 2011-01-27 A. Doff , A. A. Natale

In this work we study a predictive model based on a partially unified theory possessing the gauge symmetry of the Pati-Salam group, $SU(2)_L\times SU(2)_R\times SU(4)_C$ supplemented by a global Peccei-Quinn symmetry, $U(1)_{PQ}$. A…

High Energy Physics - Phenomenology · Physics 2019-05-14 Shaikh Saad

Within the framework of theories where both scalars and fermions are present, we develop a systematic prescription for the construction of CP-violating quantities that are invariant under basis transformations of those matter fields. In…

High Energy Physics - Phenomenology · Physics 2010-11-01 F. J. Botella , Joao P. Silva

Various classical counterparts for the two-level pairing model in a many-fermion system are presented in the Schwinger boson representation. It is shown that one of the key ingredients giving the classical descriptions for quantal system is…

Nuclear Theory · Physics 2008-11-26 Y. Tsue , C. Providencia , J. da Providencia , M. Yamamura

In this talk, I describe a supersymmetric solution to the long-standing discrepancy between the bottom-quark production cross section and predictions of perturbative quantum chromodynamics. Pair production of light gluinos, of mass 12-16…

High Energy Physics - Phenomenology · Physics 2007-05-23 Z. Sullivan

We make a novel observation about the decoherence phenomenon of the fermion in the Witten's supersymmetric (SUSY) quantum mechanical model. It is shown that, when the bosonic partner in the SUNY model is unobservable in a certain energy…

Quantum Physics · Physics 2007-05-23 T. Shi , Z. Song , C. P. Sun

Measurements of CP asymmetries in B decays will soon be made at $B$ factories and hadron machines. In light of this, we review and update the profile of the CKM unitarity triangle and the resulting CP asymmetries in B decays. This is done…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ahmed Ali , David London

We show that in the minimal 3-3-1 model the flavor changing neutral currents (FCNCs) do not impose necessarily strong constraints on the mass of the $Z^\prime$ of the model if we also consider the neutral scalar contributions to such…

High Energy Physics - Phenomenology · Physics 2013-12-12 A. C. B. Machado , J. C. Montero , V. Pleitez

Exchange of unparticle stuff of dimension $d_\U$ with FCNC interaction can induce $M^{12,u}$ and $\Gamma^{12,u}$ causing meson and anti-meson mixing with the relation $\Gamma^{12,u}/M^{12,u} = 2 \tan(\pi d_\U)$. We show that this type of…

High Energy Physics - Phenomenology · Physics 2011-03-28 Bo Ren , Xiao-Gang He , Pei-Chu Xie

A phenomenological description of the neutral K and B meson systems is presented. The situation of the current CP violation experiments is described and a detailed discussion of their results is given, followed by some future prospects.

High Energy Physics - Phenomenology · Physics 2015-06-25 Tatsuya Nakada

The surprising excess of missing-energy events far beyond all standard-model expectations in the weak decays of the charged ground-state $B^+$ meson into some charged strange meson, rather recently observed by the Belle-II experiment, may…

High Energy Physics - Phenomenology · Physics 2026-05-04 Alexander Berezhnoy , Wolfgang Lucha , Dmitri Melikhov

The recent observation of the mass difference in $B_s$ system seems to be not in complete agreement with the corresponding standard model value. We consider the model with an extra vector like down quark to explain this discrepancy and…

High Energy Physics - Phenomenology · Physics 2008-12-18 R. Mohanta , A. K. Giri

CP violation in K and B decays is reviewed in the Standard Model (SM) and beyond the SM. In K decays, one is seeking first evidence for CP violation in direct $K\to \pi\pi$ decays. This would not give a precise quantitative test for the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Michael Gronau

The most general Two Higgs Doublet Model potential without explicit CP violation depends on 10 real independent parameters. Excluding spontaneous CP violation results in two 7 parameter models. Although both models give rise to 5 scalar…

High Energy Physics - Phenomenology · Physics 2009-01-07 L. Brücher , R. Santos

In this communication we discuss few topics related with modern experimental data on the physics of light pseudoscalar mesons. It includes the contribution of the pseudoscalar mesons to the muon anomalous magnetic moment (AMM), $g-2$, the…

High Energy Physics - Phenomenology · Physics 2015-05-30 A. E. Dorokhov

The article proposes the description of internal spaces of fermion (quarks and leptons and antiquarks and antileptons) and boson (photons, weak bosons, gluons, gravitons and scalars) second quantized fields in a unique way if they all are…

General Physics · Physics 2025-02-26 N. S. Mankoč Borštnik

We propose a new kind of CP violation effect -- the double-mixing CP asymmetry -- in a type of cascade decays that involves at least two mixing neutral mesons in the decay chain. It is induced by the interference between different…

High Energy Physics - Phenomenology · Physics 2023-07-06 Yin-Fa Shen , Wen-Jie Song , Qin Qin

With a modest revision of the mass sector of the Standard Model, the systematics of the fermion masses and mixings can be fully described and interpreted as providing information on matrix elements of physics beyond the Standard Model. A…

High Energy Physics - Phenomenology · Physics 2015-12-08 G. J. Stephenson , T. Goldman