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We show that dyon and magnetic monopole can be constructed in the gauge-independent way for the $SU(2)$ Yang--Mills theory even in the absence of the scalar field. This result is derived from the recent proposal for obtaining non-trivial…

High Energy Physics - Theory · Physics 2019-03-28 Shogo Nishino , Ryutaro Matsudo , Matthias Warschinke , Kei-Ichi Kondo

We consider axially symmetric SU(2) Yang-Mills-Higgs (YMH) multimonopoles in Brans-Dicke theory for winding number n > 1. In analogy to the spherically symmetric n=1 solutions, we find that the axially symmetric solutions exist for higher…

High Energy Physics - Theory · Physics 2014-11-18 Betti Hartmann

We study the decay of the metastable symmetric phase in the standard model at finite temperature. For the SU(2)-Higgs model the two wave function correction terms $Z_{\vp}(\vp^2,T)$ and $Z_{\chi}(\vp^2,T)$ of Higgs and Goldstone boson…

High Energy Physics - Phenomenology · Physics 2009-10-22 D. Bödeker , W. Buchmüller , Z. Fodor , T. Helbig

A simple extension of the Standard Model (SM), based on the gauge group $SU(3)_C\otimes SU(3)_L\otimes U(1)_Y$ with $Y$ being the hypercharge, is considered. We show that, by imposing an approximate global $SU(2)_L\times SU(2)_R$ custodial…

High Energy Physics - Phenomenology · Physics 2016-03-30 Le Tho Hue , Le Duc Ninh

We describe the internal composition of a topologically stable monopole carrying a magnetic charge of $6\pi/e$ that arises from the spontaneous breaking of the trinification symmetry $SU(3)_c\times SU(3)_L\times SU(3)_R$ ($G$). Since this…

High Energy Physics - Phenomenology · Physics 2021-05-25 George Lazarides , Qaisar Shafi

In a recent paper, we proposed a new class of supersymmetric SO(10) models for neutrino masses where the TeV scale electroweak symmetry is SU(2)_L\times SU(2)_R\times U(1)_{B-L} making the associated gauge bosons W_R and Z' accessible at…

High Energy Physics - Phenomenology · Physics 2015-03-13 P. S. Bhupal Dev , R. N. Mohapatra

A search for the standard model Higgs boson is performed in a data sample corresponding to an integrated luminosity of 1.1 fb$^{-1}$, recorded by the CMS detector in proton-proton collisions at the LHC with a 7 TeV center-of-mass energy.…

High Energy Physics - Experiment · Physics 2015-06-03 Michele De Gruttola

We would like to present some exact SU(2) Yang-Mills-Higgs monopole solutions of half-integer topological charge. These solutions can be just an isolated half-monopole or a multimonopole with topological magnetic charge, ${1/2}m$, where $m$…

High Energy Physics - Theory · Physics 2011-07-19 Rosy Teh , Khai-Ming Wong

A vector boson $W_{1}^{\mu}$ with the quantum numbers $\left(\boldsymbol{3},1\right)$ under $SU\left(2\right)_{L}\times U(1)_{Y}$ could in principle couple with the Higgs field via the renormalizable term $W_{1}^{\mu*}HD_{\mu}H$. This…

High Energy Physics - Phenomenology · Physics 2022-05-26 Renato M. Fonseca

We propose that the electroweak and flavour quantum numbers of the Standard Model (SM) could be unified at high energies in an $SU(4)\times Sp(6)_L \times Sp(6)_R$ anomaly-free gauge model. All the SM fermions are packaged into two…

High Energy Physics - Phenomenology · Physics 2022-10-19 Joe Davighi , Joseph Tooby-Smith

The dyonic quantum states of magnetic monopoles in Yang-Mills-Higgs theory with a non-abelian unbroken gauge group display a subtle interplay between magnetic and electric properties. This is described in detail in the theory with the gauge…

High Energy Physics - Theory · Physics 2007-05-23 B. J. Schroers

If the new boson is lying in the narrow mass range between 122 - 127 GeV is confirmed to be a Higgs boson, then stability of the electroweak vacuum in a minimal model with a universal extra dimension (mUED) will require a much lower cutoff…

High Energy Physics - Phenomenology · Physics 2013-03-14 Anindya Datta , Sreerup Raychaudhuri

The long-awaited Higgs particle H around 125 GeV has been observed at the LHC. Interpreting it as the standard model Higgs boson and if there is no new physics between electroweak and Planck scale, we then don't have a stable vacuum. Here,…

High Energy Physics - Phenomenology · Physics 2015-06-12 Yong Tang

The string landscape suggests that the supersymmetry breaking scale can be high, and then the simplest low energy effective theory is the Standard Model (SM). Considering grand unification scale supersymmetry breaking, we show that gauge…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , Jing Jiang , Paul Langacker , Tianjun Li

We present a renormalizable model of electroweak interactions containing an extra $SU(2)'_L\otimes SU(2)'_R$ symmetry. The masses of the corresponding gauge bosons and of the associated Higgs particles can be made heavy by tuning a…

High Energy Physics - Phenomenology · Physics 2009-10-28 R. Casalbuoni , S. De Curtis , D. Dominici , M. Grazzini

We present quantitative and qualitative arguments in favor of the claim that, within the present cosmological epoch, the U(1)$_Y$ factor in the Standard Model is an effective manifestation of SU(2) pure gauge dynamics of Yang-Mills scale…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ralf Hofmann

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

A SU(3) \times SU(2) \times U(1) supersymmetric theory is constructed with a TeV sized extra dimension compactified on the orbifold S^1/(Z_2 \times Z_2'). The compactification breaks supersymmetry leaving a set of zero modes which…

High Energy Physics - Phenomenology · Physics 2009-09-29 Riccardo Barbieri , Lawrence J. Hall , Yasunori Nomura

Gauge-Yukawa unified theories, and in particular those which are finite beyond the unification scale, have been extended to include a soft supersymmetry breaking (SSB) sector. In the case of the Finite Unified Theories a new solution to the…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Kobayashi , J. Kubo , M. Mondragon , G. Zoupanos

The rate of monopole decay into a dyon and an electron in an inhomogeneous external electric field is calculated by semiclassical methods. Comparison is made to an earlier result where this quantity was calculated for a constant field.…

High Energy Physics - Phenomenology · Physics 2022-06-01 A. K. Monin , A. V. Zayakin