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Unidirectional light emission from planar photonic structures is highly advantageous for a wide range of optoelectronic applications. Recently, it has been demonstrated that unidirectional guided resonances (UGRs) can be realized by…

Optics · Physics 2023-12-04 Sun-Goo Lee , Seong-Han Kim , Wook-Jae Lee

The mechanism of electroweak symmetry breaking (EWSB) will be directly scrutinized soon at the CERN Large Hadron Collider (LHC). We analyze the LHC potential to look for new vector bosons associated with the EWSB sector. We present a…

High Energy Physics - Phenomenology · Physics 2009-11-05 A. Alves , O. J. P. Eboli , D. Goncalves , M. C. Gonzalez-Garcia , J. K. Mizukoshi

We explore the possibility of a beyond the standard model scalar ($\phi$) as a possible explanation of the diphoton resonance at 750~GeV invariant mass reported by the ATLAS and CMS collaborations at the large hadron collider (LHC). We…

High Energy Physics - Phenomenology · Physics 2016-04-21 Shrihari Gopalakrishna , Tuhin Subhra Mukherjee

The $U(1)_{L_\mu-L_\tau}$ extended Standard Model (SM) is anomaly free, and contains a massive $Z^\prime$ boson. The associated Higgs, which generates the $Z'$'s mass via spontaneous symmetry breaking (SSB) can mix with the SM Higgs. The…

High Energy Physics - Phenomenology · Physics 2023-11-07 Jochem Kip , Zhongyi Zhang

The Brout-Englert-Higgs mechanism describes the generation of masses of fundamental particles in the Standard Model (SM). It predicts the existence of one scalar particle with precisely predicted couplings to fermions and gauge bosons.…

High Energy Physics - Phenomenology · Physics 2023-04-25 Thomas Biekötter

Motivated by dark-photon $\bar{\gamma}$ scenarios extensively considered in the literature, we explore experimentally allowed models where the Higgs boson coupling to photon and dark photon $H\gamma\bar{\gamma}$ can be enhanced.…

High Energy Physics - Phenomenology · Physics 2014-10-08 Emidio Gabrielli , Matti Heikinheimo , Barbara Mele , Martti Raidal

A light Higgs boson with substantial branching ratio into invisible channels can occur in a variety of models with: light neutralinos, spontaneously broken lepton number, radiatively generated neutrino masses, additional singlet scalar(s)…

High Energy Physics - Phenomenology · Physics 2009-11-10 R. M. Godbole , M. Guchait , K. Mazumdar , S. Moretti , D. P. Roy

Composite Higgs models predict the existence of various bound states. Among these are spin-1 resonances. We investigate models containing $\text{SU(2)}_L\times \text{SU(2)}_R$ as part of the unbroken subgroup in the new strong sector. These…

High Energy Physics - Phenomenology · Physics 2025-10-14 Rosy Caliri , Jan Hadlik , Manuel Kunkel , Werner Porod , Christian Verollet

We investigate the rare radiative decays of extra gauge neutral bosons. In particular, we established the theoretical predictions for the production of unparticle in decays of $Z^{\prime}$ - bosons. The implementation of our prediction in…

High Energy Physics - Phenomenology · Physics 2010-02-16 G. A. Kozlov

We study supersymmetric QCD in the conformal window as a laboratory for unparticle physics, and analyze couplings between the unparticle sector and the Higgs sector. These couplings can lead to the unparticle sector being pushed away from…

High Energy Physics - Phenomenology · Physics 2008-11-26 Patrick J. Fox , Arvind Rajaraman , Yuri Shirman

Both Atlas and CMS have reported a discovery of a Standard Model-like Higgs boson $H$ of mass around 125 GeV. Consistency with the Standard Model implies the non-observation of non-SM like decay modes of the newly discovered particle.…

High Energy Physics - Phenomenology · Physics 2012-12-03 Christoph Englert , Michael Spannowsky , Chris Wymant

We consider the NMSSM extended to include one vector-like family of quarks and leptons. If (some of) these vector-like matter particles, as the Higgs doublets, have Yukawa couplings to the singlet S that exceed unity at about the same scale…

High Energy Physics - Phenomenology · Physics 2016-07-20 Riccardo Barbieri , Dario Buttazzo , Lawrence J. Hall , David Marzocca

The resonance production of new chiral spin-1 bosons and their detection through the Drell--Yan process at the CERN LHC is considered. Quantitative evaluations of various differential cross-sections of the chiral bosons production are made…

High Energy Physics - Phenomenology · Physics 2009-01-26 M. V. Chizhov , V. A. Bednyakov , J. A. Budagov

We comment on the Standard Model Higgs boson evidence from LHC. We propose that the new resonance at 125 GeV could be interpreted as a pseudoscalar meson with quantum number $J^{PC} = 0^{- +}$. We show that this pseudoscalar could mimic the…

High Energy Physics - Phenomenology · Physics 2012-09-17 Paolo Cea

We point out that W' bosons may decay predominantly into Higgs particles associated with their broken gauge symmetry. We demonstrate this in a renormalizable model where the W' and W couplings to fermions differ only by an overall…

High Energy Physics - Phenomenology · Physics 2015-06-18 Bogdan A. Dobrescu , Andrea D. Peterson

A new boson with mass ~125 GeV and properties similar to the Standard Model Higgs has been discovered by both the ATLAS and CMS collaborations, with significant observation in the ZZ* to 4 leptons and the diphoton channels. In this work we…

High Energy Physics - Phenomenology · Physics 2015-06-15 Aielet Efrati , Daniel Grossman , Yonit Hochberg

LHC results do not confirm conventional natural solutions to the Higgs mass hierarchy problem, motivating alternative interpretations where a hierarchically small weak scale is generated from a dimension-less quantum dynamics. We propose…

High Energy Physics - Phenomenology · Physics 2016-07-25 Kristjan Kannike , Giulio Maria Pelaggi , Alberto Salvio , Alessandro Strumia

We explore the possibility of indirectly observing the effects of $Z'$-like particles with electroweak strength couplings in the Drell-Yan channel at the LHC with masses above the resonance direct search reach. We find that, mostly due to…

High Energy Physics - Phenomenology · Physics 2009-09-28 Thomas G. Rizzo

Higgs Effective Field Theory can be used to study vector-boson elastic scattering at the high energies relevant for the LHC. For most of the parameter space, the scattering is strongly interacting, with the minimal Standard Model being a…

High Energy Physics - Phenomenology · Physics 2018-08-15 Rafael L. Delgado , Antonio Dobado , Felipe J. Llanes-Estrada

The Higgs particle can decay dominantly into an invisible channel in the Majoron models. We have explored the prospect of detecting such a Higgs particle at LHC via its associated production with a gluon, Z or W boson. While the…

High Energy Physics - Phenomenology · Physics 2009-09-25 Debajyoti Choudhury , D. P. Roy
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