Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Ruhdorfer, Maximilian"'
Autor:
Herms, Johannes, Ruhdorfer, Maximilian
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 nature, this would appear to be a coincidence. We attempt to quantify ho
Externí odkaz:
http://arxiv.org/abs/2408.11089
We examine the phase structure of a QCD-like theory at $\bar\theta =\pi$ obtained from supersymmetric $SU(N)$ QCD perturbed by a small amount of supersymmetry breaking via anomaly mediation (AMSB QCD). The spectrum of this theory matches that of QCD
Externí odkaz:
http://arxiv.org/abs/2407.06252
We present a simple set of power counting rules which allows us to easily estimate calculable instanton effects up to $O(1)$ factors. We apply the resulting Instanton NDA to examine the effects of small instantons on various axion models. We confirm
Externí odkaz:
http://arxiv.org/abs/2311.09285
Autor:
Csáki, Csaba, D'Agnolo, Raffaele Tito, Gupta, Rick S., Kuflik, Eric, Roy, Tuhin S., Ruhdorfer, Maximilian
We investigate the dynamics responsible for generating the potential of the $\eta'$, the (would-be) Goldstone boson associated with the anomalous axial $U(1)$ symmetry of QCD. The standard lore posits that pure QCD dynamics generates a confining pote
Externí odkaz:
http://arxiv.org/abs/2307.04809
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 fusion channel. An excellent sensitivity is possible in line of principl
Externí odkaz:
http://arxiv.org/abs/2303.14202
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 operator does not contain any degrees of freedom charged under the SM ga
Externí odkaz:
http://arxiv.org/abs/2210.02456
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 to extract anomalous dimensions avoiding complications from gauge red
Externí odkaz:
http://arxiv.org/abs/2109.06191
Publikováno v:
JHEP 04 (2020) 164
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 presented. We compare our analytic results obtained by using Feynman
Externí odkaz:
http://arxiv.org/abs/2003.05936
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 the non-trivial embedding of QCD into the UV theory. The effects from
Externí odkaz:
http://arxiv.org/abs/1912.02197
Publikováno v:
SciPost Phys. 8, 027 (2020)
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 Matter to the Standard Model. We focus on Dark Matter pair production thro
Externí odkaz:
http://arxiv.org/abs/1910.04170