75 citations · 338 across the 21 of their papers we have counts for
23 papers
Negative running of gravitational positivity
J. Fernandez, M. Ruhdorfer, J. Serra
We investigate the one-loop renormalization group evolution in four dimensions of the leading operators in the effective field theories of shift-symmetric scalars, photons, and gra…
MuCol Milestone Report No. 7: Consolidated Parameters
Rebecca Taylor, Antoine Chancé, Dario Augusto Giove +459
This document is comprised of a collection of consolidated parameters for the key parts of the muon collider. These consolidated parameters follow on from the October 2024 Prelimin…
Robust bounds on MACHOs from the faintest galaxies
Peter W. Graham, Harikrishnan Ramani, Maximilian Ruhdorfer
We use the dynamical heating of stars in ultrafaint dwarf (UFD) galaxies to set limits on Massive Compact Halo Objects (MACHOs). In our analysis we study the robustness of the boun…
Dynamical Up-quark Mass Generation in QCD-like theories
Csaba Csáki, Tuhin S. Roy, Maximilian Ruhdorfer +1
We calculate the dynamically generated up quark mass in some QCD-like theories with light flavors, obtained from supersymmetric QCD perturbed via anomaly mediated supersymmet…
The Muon Collider
Carlotta Accettura, Simon Adrian, Rohit Agarwal +450
Muons offer a unique opportunity to build a compact high-energy electroweak collider at the 10 TeV scale. A Muon Collider enables direct access to the underlying simplicity of the…
The Seiberg-Witten Axion
Csaba Csáki, Rotem Ovadia, Maximilian Ruhdorfer +2
We present a fully calculable UV complete toy model of a Peccei-Quinn (PQ) axion coupled to magnetic monopoles as well as electric charges. The theory has manifest electric-magneti…
MuCol Milestone Report No. 5: Preliminary Parameters
Carlotta Accettura, Simon Adrian, Rohit Agarwal +391
This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. The updated preliminary parameters follow on from the October 2…
Why detect forward muons at a muon collider
Maximilian Ruhdorfer, Ennio Salvioni, Andrea Wulzer
We survey the opportunities offered by the detection of the forward muons that accompany the creation of neutral effective vector bosons at a muon collider, in different kinematic…
How common are grand unified theories?
Johannes Herms, Maximilian Ruhdorfer
The individual fermion generations of the Standard Model fit neatly into a representation of a simple Grand Unified Theory gauge algebra. If Grand Unification is not realized in na…
Interim report for the International Muon Collider Collaboration (IMCC)
C. Accettura, S. Adrian, R. Agarwal +383
The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implemen…
Spontaneous CP Breaking in a QCD-like Theory
Csaba Csáki, Maximilian Ruhdorfer, Taewook Youn
We examine the phase structure of a QCD-like theory at obtained from supersymmetric QCD perturbed by a small amount of supersymmetry breaking via anomaly mediatio…
Instanton NDA and Applications to Axion Models
Csaba Csáki, Raffaele Tito D'Agnolo, Eric Kuflik +1
We present a simple set of power counting rules which allows us to easily estimate calculable instanton effects up to factors. We apply the resulting Instanton NDA to examin…
Quantum collider probes of the fermionic Higgs portal
U. Haisch, M. Ruhdorfer, K. Schmid +1
We explore the sensitivity of future hadron colliders to constrain the fermionic Higgs portal, with a focus on scenarios where the new fermions cannot be directly observed in exoti…
On the Dynamical Origin of the Potential and the Axion Mass
Csaba Csáki, Raffaele Tito D'Agnolo, Rick S. Gupta +3
We investigate the dynamics responsible for generating the potential of the , the (would-be) Goldstone boson associated with the anomalous axial symmetry of QCD. The sta…
Invisible Higgs from forward muons at a muon collider
Maximilian Ruhdorfer, Ennio Salvioni, Andrea Wulzer
We propose to probe the Higgs boson decay to invisible particles at a muon collider by observing the forward muons that are produced in association with the Higgs in the Z-boson fu…
Higgs Squared
Csaba Csaki, Ameen Ismail, Maximilian Ruhdorfer +1
We present a novel construction for a Higgs-VEV sensitive operator, which can be used as a trigger operator in cosmic selection models for the electroweak hierarchy problem. Our op…
RG of GR from On-shell Amplitudes
Pietro Baratella, Dominik Haslehner, Maximilian Ruhdorfer +2
We study the renormalization group of generic effective field theories that include gravity. We follow the on-shell amplitude approach, which provides a simple and efficient method…
Singlet night in Feynman-ville: one-loop matching of a real scalar
Ulrich Haisch, Maximilian Ruhdorfer, Ennio Salvioni +2
A complete one-loop matching calculation for real singlet scalar extensions of the Standard Model to the Standard Model effective field theory (SMEFT) of dimension-six operators is…
UV Sensitivity of the Axion Mass from Instantons in Partially Broken Gauge Groups
Csaba Csaki, Maximilian Ruhdorfer, Yuri Shirman
We examine the contribution of small instantons to the axion mass in various UV completions of QCD. We show that the reason behind the potential dominance of such contributions is…
A Global View of the Off-Shell Higgs Portal
Maximilian Ruhdorfer, Ennio Salvioni, Andreas Weiler
We study for the first time the collider reach on the derivative Higgs portal, the leading effective interaction that couples a pseudo Nambu-Goldstone boson (pNGB) scalar Dark Matt…
Effective Field Theory of Gravity to All Orders
Maximilian Ruhdorfer, Javi Serra, Andreas Weiler
We construct the general effective field theory of gravity coupled to the Standard Model of particle physics, which we name GRSMEFT. Our method allows the systematic derivation of…
Dark matter shifts away from direct detection
Reuven Balkin, Maximilian Ruhdorfer, Ennio Salvioni +1
Dark matter could emerge along with the Higgs as a composite pseudo-Nambu-Goldstone boson with decay constant . This type of WIMP is especially compelling b…
Charged Composite Scalar Dark Matter
Reuven Balkin, Maximilian Ruhdorfer, Ennio Salvioni +1
We consider a composite model where both the Higgs and a complex scalar , which is the dark matter (DM) candidate, arise as light pseudo Nambu-Goldstone bosons (pNGBs) from a st…