5 papers · 1 filter
The flavour of SU(15) composite quarks and leptons
Benoît Assi, Ryan Plestid, Amartya Sengupta +1
We study the flavour structure of an confining chiral gauge theory in which the Standard Model (SM) quarks, leptons, and Higgs emerge as composite bound states. The coup…
EFT Validity and Truncation Uncertainty from few Nuisance Parameters
Benoît Assi, Adam Martin, William Shepherd
An observable in an Effective Field Theory (EFT) is an expansion in a set of small parameters, no different than any other perturbation series. Truncating such a series expansion l…
Neutrino Dipole Moments and Radiative Signatures from Partial Compositeness
Benoît Assi, Pedro A. N. Machado
We investigate composite neutrino models where heavy neutrinos emerge as bound states from a near-conformal strongly coupled sector. Standard Model neutrinos mix with these composi…
Energy-Enhanced Expansion of the Standard Model Effective Field Theory
Benoît Assi, Adam Martin
We formalize energy-scaling arguments in the Standard Model Effective Field Theory (SMEFT) to estimate effects of operators up to dimension ten. Introducing a classification based…
Energy-Enhanced Dimension Eight SMEFT Effects in VBF Higgs production
Benoît Assi, Adam Martin
We study Higgs boson production via vector boson fusion at the LHC, focusing on the process and capturing the leading energy-enhanced contributions within the Stand…