190 citations · 900 across the 33 of their papers we have counts for
26 papers · 1 filter
Vector Resonances at Muon and Wakefield Colliders
Massimo Cipressi, Kevin Langhoff, Toby Opferkuch
We explore the potential of future high-energy lepton colliders to probe heavy vector resonances. At wakefield colliders, intense beam-beam interactions produce radiation, called b…
Searches for electroweak states at future plasma wakefield colliders
So Chigusa, Simon Knapen, Toby Opferkuch +3
We quantify the discovery potential of future multi-TeV plasma wakefield colliders for new electroweak multiplets. We include beam-beam effects through realistic luminosity spectra…
Displaced Searches for Axion-Like Particles and Heavy Neutral Leptons at Mu3e
Simon Knapen, Toby Opferkuch, Diego Redigolo +1
We present strategies for the Mu3e experiment to search for light, weakly coupled particles produced in rare muon decays, focusing on displaced decays within the hollow ta…
A Robust Search for Lepton Flavour Violating Axions at Mu3e
Simon Knapen, Kevin Langhoff, Toby Opferkuch +1
We propose a search at Mu3e for lepton flavor violating axion(-like) particles in decays. By requiring an additional pair from internal conversion, one can c…
Angling for Insights: Illuminating Light New Physics at Mu3e through Angular Correlations
Simon Knapen, Kevin Langhoff, Toby Opferkuch +1
We examine the capability of Mu3e to probe light new physics scenarios that produce a prompt electron-positron resonance and demonstrate how angular observables are instrumental in…
Magnetic Moments of Astrophysical Neutrinos
Joachim Kopp, Toby Opferkuch, Edward Wang
We study the impact of neutrino magnetic moments on astrophysical neutrinos, in particular supernova neutrinos and ultra-high energy neutrinos from extragalactic sources. We show t…
The Supercooling Window at Weak and Strong Coupling
Noam Levi, Toby Opferkuch, Diego Redigolo
Supercooled first order phase transitions are typical of theories where conformal symmetry is predominantly spontaneously broken. In these theories the fate of the flat scalar dire…
Lepton PDFs and Multipurpose Single Lepton Searches at the LHC
Herbi K. Dreiner, Victor Martin Lozano, Saurabh Nangia +1
A final state consisting of one charged lepton, at least one jet, and little missing transverse energy can be a very promising signature of new physics at the LHC across a wide ran…
The Neutrino Magnetic Moment Portal
Vedran Brdar, Admir Greljo, Joachim Kopp +1
We discuss neutrino magnetic moments as a way of constraining physics beyond the Standard Model. In fact, new physics at the TeV scale can easily generate observable neutrino magne…
Dark Matter, Destroyer of Worlds: Neutrino, Thermal, and Existential Signatures from Black Holes in the Sun and Earth
Javier F. Acevedo, Joseph Bramante, Alan Goodman +2
Dark matter can be captured by celestial objects and accumulate at their centers, forming a core of dark matter that can collapse to a small black hole, provided that the annihilat…
The Neutrino Magnetic Moment Portal: Cosmology, Astrophysics, and Direct Detection
Vedran Brdar, Admir Greljo, Joachim Kopp +1
We revisit the physics of neutrino magnetic moments, focusing in particular on the case where the right-handed, or sterile, neutrinos are heavier (up to several MeV) than the left-…
Gravitational Imprints of Flavor Hierarchies
Admir Greljo, Toby Opferkuch, Ben A. Stefanek
The mass hierarchy among the three generations of quarks and charged leptons is one of the greatest mysteries in particle physics. In various flavor models, the origin of this phen…
Probing muonic forces with neutron star binaries
Jeff A. Dror, Ranjan Laha, Toby Opferkuch
We show that gravitational wave emission from neutron star binaries can be used to discover any generic long-ranged muonic force due to the large inevitable abundance of muons insi…
Dark, Cold, and Noisy: Constraining Secluded Hidden Sectors with Gravitational Waves
Moritz Breitbach, Joachim Kopp, Eric Madge +2
We explore gravitational wave signals arising from first-order phase transitions occurring in a secluded hidden sector, allowing for the possibility that the hidden sector may have…
The Ultraviolet Landscape of Two-Higgs Doublet Models
Manuel E. Krauss, Toby Opferkuch, Florian Staub
We study the predictions of generic ultraviolet completions of two-Higgs doublet models. We assume that at the matching scale between the two-Higgs doublet model and a ultraviolet…
Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
Joachim Kopp, Ranjan Laha, Toby Opferkuch +1
We explore in detail the possibility that gravitational wave signals from binary inspirals are affected by a new force that couples only to dark matter particles. We discuss the im…
N-loop running should be combined with N-loop matching
Johannes Braathen, Mark D. Goodsell, Manuel E. Krauss +2
We investigate the high-scale behaviour of Higgs sectors beyond the Standard Model, pointing out that the proper matching of the quartic couplings before applying the renormalisati…
R-Parity Violation at the LHC
Daniel Dercks, Herbi Dreiner, Manuel E. Krauss +2
We investigate the phenomenology of the MSSM extended by a single R-parity violating coupling at the unification scale. For all R-parity violating couplings, we discuss the evoluti…
Spontaneous Charge Breaking in the NMSSM - Dangerous or not?
Manuel E. Krauss, Toby Opferkuch, Florian Staub
We investigate the impact of charge-breaking minima on the vacuum stability of the NMSSM. We find that, in contrast to Two-Higgs-Doublet Models like the MSSM, at both tree- and loo…
Perspectives for Detecting Lepton Flavour Violation in Left-Right Symmetric Models
Cesar Bonilla, Manuel E. Krauss, Toby Opferkuch +1
We investigate lepton flavour violation in a class of minimal left-right symmetric models where the left-right symmetry is broken by triplet scalars. In this context we present a m…
Validity of the CMSSM interpretation of the diphoton excess
Herbi K. Dreiner, Manuel E. Krauss, Ben O'Leary +2
It has been proposed that the observed diphoton excess at 750 GeV could be explained within the constrained minimal supersymmetric standard model via resonantly produced stop bound…
Soft Gamma Rays from Heavy WIMPs
Manuel Ernst Krauss, Toby Opferkuch, Florian Staub +1
We propose an explanation of the galactic center gamma ray excess by supersymmetric WIMPs as heavy as 500 GeV. The lightest neutralino annihilates into vector-like leptons or quark…
Precision tools and models to narrow in on the 750 GeV diphoton resonance
Florian Staub, Peter Athron, Lorenzo Basso +8
The hints for a new resonance at 750 GeV from ATLAS and CMS have triggered a significant amount of attention. Since the simplest extensions of the standard model cannot accommodate…
A constrained supersymmetric left-right model
Martin Hirsch, Manuel E. Krauss, Toby Opferkuch +2
We present a supersymmetric left-right model which predicts gauge coupling unification close to the string scale and extra vector bosons at the TeV scale. The subtleties in constru…