25 citations · 72 across the 24 of their papers we have counts for
26 papers
A phenomenological profile of Higgs portals at future colliders
Maximilian Detering, Christoph Englert, Victor Maura +1
Should the Higgs boson be found to couple to a hidden dark sector, it will become necessary to determine the nature of the Higgs portal responsible. Could the minimal, marginal Hig…
Exploring Extended Higgs Dynamics via Higgsstrahlung at FCC-ee
Anisha, Francisco Arco, Stefano Di Noi +2
The Future Circular Electron-Positron Collider (FCC-ee) will probe aspects of the Higgs boson and the electroweak scale with unprecedented precision via associated Higgs production…
Electroweak and Single Top-Quark Conspiracy in Current LHC Data
Christoph Englert, Roman Kogler, Michael Spannowsky
Recent LHC measurements of electroweak single top-quark and top-quark associated Higgs boson production show a number of rate shifts, while related multiboson channels remain close…
Polyakov Loops Tame Phase Transitions
Lisa Biermann, Joydeep Chakrabortty, Christoph Englert
We estimate the impact of Polyakov loop (PL) contributions on electroweak phase transitions (PTs). We show that the PL, which is unavoidable in thermal gauge field theory, tends to…
Big Dipper, Help Me Find A Way -- Dip-hunting at hadron colliders
Diego A. Baron Moreno, Christoph Englert, Yvonne Peters
Destructive interference between signal and background processes poses a fundamental challenge in searches for top-philic scalar resonances, significantly reducing experimental sen…
Background Fields Meet the Heat Kernel: Gauge Invariance and RGEs without diagrams
Debanjan Balui, Joydeep Chakrabortty, Christoph Englert +2
We introduce a new method that exploits the combination of the Heat Kernel (HK) and Background Field Method to compute gauge-invariant and gauge parameter-independent quantities su…
Weak boson probes of Higgs unitarity restoration at 10 TeV parton colliders
Christoph Englert, Wrishik Naskar, Andrew D. Pilkington +1
Higgs coupling deviations, at levels accessible to the high-luminosity LHC, can imply a phenomenological no-lose theorem for the next generation of collider facilities. Correlating…
Assessing (H)EFT theory errors by pitting EoM against Field Redefinitions
Rodrigo Alonso, Christoph Englert, Wrishik Naskar +1
Truncations of effective field theory expansions are technically necessary but inherently intertwined with the redundancies of general field redefinitions. This can be viewed as a…
Future Collider Perspectives on Higgs CP Violation
Arun Atwal, Jessica Burridge, António Jacques Costa +9
The search for new sources of CP violation is a cornerstone of the beyond the Standard Model phenomenology programme at the LHC and beyond. We provide a comprehensive analysis of s…
Phenomenology of a Kinetic Higgs Portal
Anisha, Lisa Biermann, Christoph Englert +1
We explore the phenomenological consequences of non-minimal hidden sector interactions on observable correlations in the Higgs sector, mediated through the -symmetric…
Gauge Choices, Infrared Pitfalls, and Thermal Effects in Effective Potentials
Debanjan Balui, Tisa Biswas, Joydeep Chakrabortty +3
The evaluation of effective potentials is critical for a range of phenomenological applications, including inflation, vacuum stability, and phase transitions. A drawback arises fro…
Harnessing Higgs Kinematics for HEFT Constraints
Christoph Englert, Tom Ingebretsen Carlson, Jörgen Sjölin +1
We present a momentum-dependent reweighting strategy to extend current LHC di-Higgs analyses within the -framework and SMEFT into the bosonic sector of the Higgs Effective Field…
Z and Higgs Factory Implications of Two Higgs Doublets with First-Order Phase Transitions
Anisha, Francisco Arco, Stefano Di Noi +2
We investigate the potential of future electron-positron colliders, such as FCC-ee and CEPC, to probe 2-Higgs-doublet models (2HDMs) that facilitate a strong first-order electrowea…
Distorting the Top Resonance with Effective Interactions
Felix Egle, Christoph Englert, Margarete Mühlleitner +1
Interference effects in effective field theory (EFT) analyses can significantly distort sensitivity expectations, leaving subtle yet distinct signatures in the reconstruction of fi…
A anomaly motivated boson at the energy and precision frontiers
Ben Allanach, Christoph Englert, Wrishik Naskar
TeV-scale bosons with family-dependent couplings can explain some anomalies inferred from meson measurements of processes involving the $b \rightarrow s \ell^+\ell^-…
Electroweak Scalar Effects Beyond Dimension-6 in SMEFT
Nilabhra Adhikary, Tisa Biswas, Joydeep Chakrabortty +2
The Standard Model Effective Field Theory (SMEFT) provides a robust framework for probing deviations in the couplings of Standard Model particles from their theoretical predictions…
Impact of New Physics on Momentum-Dependent Particle Widths and Propagators
Christoph Englert, Wrishik Naskar, Michael Spannowsky
We investigate the impact of momentum-dependent particle widths and propagators on gauge and Higgs bosons and the top quark within the Standard Model (SM) and its SMEFT extensions…
Collider-Flavour Complementarity from the bottom to the top
Oliver Atkinson, Christoph Englert, Matthew Kirk +1
Motivated by recently observed anomalies in the flavour sector, we analyse the potential of measurements of top quarks at the Large Hadron Collider (LHC) to provide complementary c…
Doubling down on down-type diquarks
Christoph Englert, Christiane Mayer, Wrishik Naskar +1
Effective field theory-based searches for new physics at colliders are relatively insensitive to interactions involving only right-handed down-type quarks. These interactions can h…
Scalar radiation zeros at the LHC
Christoph Englert, Andrei Lazanu, Peter Millington
We consider a class of singlet scalar extensions of the Standard Model of particle physics in which the scalar couples only to off-shell states. As a result, low-order tree-level p…
Non-linear gauge-Higgs CP violation
Akanksha Bhardwaj, Christoph Englert, Dorival Gonçalves +1
A critical element of the LHC physics program is the search for an additional source of CP violation. This is largely unexplored in the context of non-linear Higgs physics, which i…
Resurrecting the LHC discovery potential in the extended Type-II Seesaw Model
Upalaparna Banerjee, Christoph Englert, Wrishik Naskar
The juxtaposition of the precision of lepton flavour measurements and the limited energy range of the Large Hadron Collider (LHC) to discover dynamical degrees of freedom linked to…
Equivariant, Safe and Sensitive -- Graph Networks for New Physics
Akanksha Bhardwaj, Christoph Englert, Wrishik Naskar +2
This study introduces a novel Graph Neural Network (GNN) architecture that leverages infrared and collinear (IRC) safety and equivariance to enhance the analysis of collider data f…
Dispelling the myth for the High-Luminosity LHC
Alberto Belvedere, Christoph Englert, Roman Kogler +1
Extrapolations of sensitivity to new interactions and standard model parameters critically inform the programme at the Large Hadron Collider (LHC) and potential future collider cas…