95 citations · 921 across the 75 of their papers we have counts for
50 papers · 1 filter
Asymptotic Grand Unification: The SO(10) case
Mohammed Omer Khojali, Alan S. Cornell, Aldo Deandrea +3
We explicitly test the asymptotic grand unification of a minimal 5-dimensional model with SO(10) gauge theory compactified on an orbifold. We con…
Top partners and scalar dark matter -- a non-minimal reappraisal
Alan S. Cornell, Aldo Deandrea, Thomas Flacke +2
A large set of models beyond the Standard Model of particle physics suggest that the top quark plays a special role in fundamental interactions. At the same time some of these mode…
Neutrino specific spin-3/2 dark matter
Ashok Goyal, Mohammed Omer Khojali, Mukesh Kumar +1
In this paper we consider a spin- dark matter (DM) particle coupled to neutrinos as a viable candidate to produce the observed DM relic density through the thermal fre…
Dark Matter in a Singlet Extended Inert Higgs Doublet Model
Mohammed Omer Khojali, Ammar Abdalgabar, Amine Ahriche +1
In this work, we consider an extension of the Standard Model (SM) with an inert Higgs doublet and a real scalar singlet, in order to address problems around the origin of dark matt…
Boosted decision trees in the era of new physics: a smuon analysis case study
Alan S. Cornell, Wesley Doorsamy, Benjamin Fuks +2
Machine learning algorithms are growing increasingly popular in particle physics analyses, where they are used for their ability to solve difficult classification and regression pr…
Contact interactions and top-philic scalar dark matter
Alan S. Cornell, Aldo Deandrea, Thomas Flacke +2
We investigate the phenomenology of a scalar top-philic dark matter candidate when adding a dimension-five contact interaction term, as motivated by possible underlying extensions…
Future lepton collider prospects for a ubiquitous composite pseudo-scalar
Alan S. Cornell, Aldo Deandrea, Benjamin Fuks +1
Composite Higgs models feature new strong dynamics leading to the description of the Higgs boson as a bound state arising from the breaking of a global (flavour) symmetry. These mo…
The anomalous production of multi-lepton and its impact on the measurement of production at the LHC
Yesenia Hernandez, Mukesh Kumar, Alan S. Cornell +7
Anomalies in multi-lepton final states at the Large Hadron Collider (LHC) have been reported in Refs.~\cite{vonBuddenbrock:2017gvy,vonBuddenbrock:2019ajh}. These can be interpreted…
Connecting the Muon Anomalous Magnetic Moment and the Multi-lepton Anomalies at the LHC
Danielle Sabatta, Alan S. Cornell, Ashok Goyal +3
A number of predictions were made in von Buddenbrock et al (2016 Eur. Phys. J. C 76, 10, 580) pertaining to the anomalous production of multiple leptons at the Large Hadron Collide…
The emergence of multi-lepton anomalies at the LHC and their compatibility with new physics at the EW scale
Stefan von Buddenbrock, Alan S. Cornell, Yaquan Fang +4
A recent study [1] has shown that a simplified model predicting a heavy scalar of mass 270 GeV () that decays to a Standard Model (SM) Higgs boson in association with a scalar s…
Constraints on a 2HDM with a singlet scalar and implications in the search for heavy bosons at the LHC
Stefan von Buddenbrock, Alan S. Cornell, Elie D. R. Iarilala +4
We study a two-Higgs doublet model extended with an additional singlet scalar (2HDM+S), and provide a brief introduction to the model and its parameters. Constraints are applied to…
Multi-lepton signatures of additional scalar bosons beyond the Standard Model at the LHC
Stefan von Buddenbrock, Alan S. Cornell, Abdualazem Fadol +3
Following a prediction made in Refs.~\cite{vonBuddenbrock:2015ema,Kumar:2016vut,vonBuddenbrock:2016rmr}, this paper focuses on multi-lepton signatures arising from two new hypothet…
The Madala hypothesis with Run 1 and 2 data at the LHC
Stefan von Buddenbrock, Alan S. Cornell, Mukesh Kumar +1
The Madala hypothesis postulates a new heavy scalar, H, which explains several independent anomalous features seen in ATLAS and CMS data simultaneously. It has already been discuss…
Exploring CP-even scalars of a Two Higgs-doublet model in future colliders
Chuene Mosomane, Mukesh Kumar, Alan S. Cornell +1
In this proceeding we shall explore the potential of a future collider to probe the CP-even scalars in a two Higgs doublet model. We consider Type-I in this study. The ma…
Spin-3/2 dark matter in a simple -channel model
Mohammed Omer Khojali, Ashok Goyal, Mukesh Kumar +1
We consider a spin-3/2 fermionic dark matter (DM) particle interacting with the Standard Model quarks through the exchange of a charged and coloured scalar or vector mediator in a…
Phenomenology of additional scalar bosons at the LHC
Mukesh Kumar, Stefan von Buddenbrock, Nabarun Chakrabarty +7
The confirmation of the Higgs boson in Run I data at the Large Hadron Collider (LHC) and the excesses in recent Run II data suggest scenarios beyond the Standard Model (SM). We pur…
Minimal Spin-3/2 Dark Matter in a simple -channel model
Mohammed Omer Khojali, Ashok Goyal, Mukesh Kumar +1
We consider a spin~-~3/2 fermionic dark matter candidate (DM) interacting with Standard Model fermions through a vector mediator in the -channel. We find that for pure vector co…
Phenomenological signatures of additional scalar bosons at the LHC
Stefan von Buddenbrock, Nabarun Chakrabarty, Alan S. Cornell +7
We investigate the search prospects for new scalars beyond the Standard Model (SM) at the Large Hadron Collider (LHC). In these studies two real scalars and have been intro…
The impact of additional scalar bosons at the LHC
Mukesh Kumar, Stefan von Buddenbrock, Nabarun Chakrabarty +6
In this study we consider an effective model by introducing two hypothetical real scalars, and - a dark matter candidate, where the masses of these scalars are $2 m_h < m_H…
Probing anomalous couplings using di-Higgs production in electron-proton collisions
Mukesh Kumar, Xifeng Ruan, Rashidul Islam +4
A proposed high energy Future Circular Hadron-Electron Collider would provide sufficient energy in a clean environment to probe di-Higgs production. Using this channel we show that…
Some theories beyond the Standard Model
Alan S. Cornell
A brief review on the physics beyond the Standard Model is given, as was presented in the High Energy Particle Physics workshop on the of February 2015 at the iThemba Nor…
Hyperbolic extra-dimensions in particle physics and beyond
Alan S. Cornell
The nature of space-time at high energy is an open question and the link between extra-dimensional theories with the physics of the Standard Model can not be established in a uniqu…
Two-loop renormalisation in UED models
Ammar Abdalgabar, A. S. Cornell
The evolution equations of the gauge and Yukawa couplings are derived for the two-loop renormalisation group equations in a five-dimensional SM compactified on a to yield…
The compatibility of LHC Run 1 data with a heavy scalar of mass around 270\,GeV
Stefan von Buddenbrock, Nabarun Chakrabarty, Alan S. Cornell +6
The first run of the LHC was successful in that it saw the discovery of the elusive Higgs boson, a particle that is consistent with the SM hypothesis. There are a number of excesse…