782 citations · 11.8k across the 249 of their papers we have counts for
24 papers · 2 filters
A Boost to : from LHC to Future Colliders
Jose Miguel No, Michael Spannowsky
A precise measurement of the Higgs decay is very challenging at the LHC, due to the very low %SM branching fraction and the shortage of…
Perturbative Higgs CP violation, unitarity and phenomenology
Christoph Englert, Karl Nordström, Kazuki Sakurai +1
Perturbative probability conservation provides a strong constraint on the presence of new interactions of the Higgs boson. In this work we consider CP violating Higgs interactions…
Type-II Seesaw Model and Multilepton Signatures at Hadron Colliders
Manimala Mitra, Saurabh Niyogi, Michael Spannowsky
We investigate multilepton signatures, arising from the decays of doubly charged and singly charged Higgs bosons in the Type-II Seesaw model. Depending on the vacuum expectation va…
Sphalerons in composite and non-standard Higgs models
Michael Spannowsky, Carlos Tamarit
After the discovery of the Higgs boson and the rather precise measurement of all electroweak boson's masses the local structure of the electroweak symmetry breaking potential is al…
Same-sign W pair production in composite Higgs models
Christoph Englert, Peter Schichtel, Michael Spannowsky
Non-minimal composite Higgs scenarios can contain exotic Higgs states which, if getting observed at the Large Hadron Collider, will help to constrain the underlying UV structure of…
Invisible Decays in Higgs Pair Production
Shankha Banerjee, Brian Batell, Michael Spannowsky
Observation of Higgs pair production is an important long term objective of the LHC physics program as it will shed light on the scalar potential of the Higgs field and the nature…
Quark-Gluon tagging with Shower Deconstruction: Unearthing dark matter and Higgs couplings
Danilo Ferreira de Lima, Petar Petrov, Davison Soper +1
The separation of quark and gluon initiated jets can be an important way to improve the sensitivity in searches for new physics or in measurements of Higgs boson properties. We pre…
Neutrino Jets from High-Mass Gauge Bosons in TeV-Scale Left-Right Symmetric Models
Manimala Mitra, Richard Ruiz, Darren J. Scott +1
We re-examine the discovery potential at hadron colliders of high-mass right-handed (RH) gauge bosons - an inherent ingredient of Left-Right Symmetric Models (LRSM). We focus…
Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies
R. Contino, D. Curtin, A. Katz +72
This report summarises the physics opportunities for the study of Higgs bosons and the dynamics of electroweak symmetry breaking at the 100 TeV pp collider.
Determining the Quantum Numbers of Simplified Models in production at the LHC
Matthew J. Dolan, Michael Spannowsky, Qi Wang +1
Simplified models provide an avenue for characterising and exploring New Physics for large classes of UV theories. In this article we study the ability of the LHC to probe the spin…
Physics at a 100 TeV pp collider: beyond the Standard Model phenomena
T. Golling, M. Hance, P. Harris +111
This report summarises the physics opportunities in the search and study of physics beyond the Standard Model at a 100 TeV pp collider.
Measuring rare and exclusive Higgs boson decays into light resonances
Andrew S. Chisholm, Silvan Kuttimalai, Konstantinos Nikolopoulos +1
We evaluate the LHC's potential of observing Higgs boson decays into light elementary or composite resonances through their hadronic decay channels. We focus on the Higgs boson pro…
Towards resolving strongly-interacting dark sectors at colliders
Christoph Englert, Karl Nordström, Michael Spannowsky
Dark sectors with strong interactions have received considerable interest. Assuming the existence of a minimally coupled dark sector which runs to strong interactions in the infrar…
Jet activity as a probe of high-mass resonance production
L. A. Harland-Lang, V. A. Khoze, M. G. Ryskin +1
We explore the method of using the measured jet activity associated with a high mass resonance state to determine the corresponding production modes. To demonstrate the potential o…
Cornering diphoton resonance models at the LHC
Mihailo Backović, Suchita Kulkarni, Alberto Mariotti +2
We explore the ability of the high luminosity LHC to test models which can explain the 750 GeV diphoton excess. We focus on a wide class of models where a 750 GeV singlet scalar co…
S-Channel Dark Matter Simplified Models and Unitarity
Christoph Englert, Matthew McCullough, Michael Spannowsky
The ultraviolet structure of -channel mediator dark matter simplified models at hadron colliders is considered. In terms of commonly studied -channel mediator simplified mode…
The Higgs Portal and Cosmology
Ketevi Assamagan, Chien-Yi Chen, John Paul Chou +19
Higgs portal interactions provide a simple mechanism for addressing two open problems in cosmology: dark matter and the baryon asymmetry. In the latter instance, Higgs portal inter…
LHC Signatures Of Scalar Dark Energy
Philippe Brax, Clare Burrage, Christoph Englert +1
Scalar dark energy fields that couple to the Standard Model can give rise to observable signatures at the LHC. In this work we show that missing energy and mono-jet searc…
Search for Sphalerons: IceCube vs. LHC
John Ellis, Kazuki Sakurai, Michael Spannowsky
We discuss the observability of neutrino-induced sphaleron transitions in the IceCube detector, encouraged by a recent paper by Tye and Wong (TW), which argued on the basis of a Bl…
The Lepton Flavour Violating Higgs Decays at the HL-LHC and the ILC
Shankha Banerjee, Biplob Bhattacherjee, Manimala Mitra +1
Run-I results from the CMS collaboration show an excess of events in the decay with a local significances of 2.4. This could be the first hint of flavour violation…
New physics and signal-background interference in associated production
Christoph Englert, Rogerio Rosenfeld, Michael Spannowsky +1
We re-investigate electroweak signal-background interference in associated Higgs production via gluon fusion in the presence of new physics in the top-Higgs sector. Considering the…
Searching for supersymmetry scalelessly
Matthias Schlaffer, Michael Spannowsky, Andreas Weiler
In this paper we propose a scale invariant search strategy for hadronic top or bottom plus missing energy final states. We present a method which shows flat efficiencies and backgr…
Hearing the signals of dark sectors with gravitational wave detectors
Joerg Jaeckel, Valentin V. Khoze, Michael Spannowsky
Motivated by aLIGO's recent discovery of gravitational waves we discuss signatures of new physics that could be seen at ground and space-based interferometers. We show that a first…
Cosmic ray air showers from sphalerons
Gustaaf Brooijmans, Peter Schichtel, Michael Spannowsky
The discovery of the Higgs boson marks a key ingredient to establish the electroweak structure of the Standard Model. Its non-abelian gauge structure gives rise to, yet unobserved,…