6 papers
Isosinglet-isotriplet mixing and the lineshape
Davide Germani, Benjamin Grinstein
We investigate the lineshapes of the in decays production within a framework that incorporates two underlying QCD configurations: a compact isosinglet state a…
Taming forward scattering singularities in partial waves
Marta Fuentes Zamoro, Benjamín Grinstein, Pablo Quílez
Perturbative partial-wave amplitudes diverge in cases with a massless exchanged particle in the -channel. We argue that the divergence is an artifact of perturbation theory and…
Most general EFTs from spurion analysis: Hilbert series and Minimal Lepton Flavor Violation
Benjamín Grinstein, Xiaochuan Lu, Carlos Miró +1
We derive a saturation theorem for general Effective Field Theories (EFTs) constructed using spurion analysis. Let be a set of spurion fields introduced to organize the breakin…
Accidental Symmetries, Hilbert Series, and Friends
Benjamín Grinstein, Xiaochuan Lu, Carlos Miró +1
Accidental symmetries in effective field theories can be established by computing and comparing Hilbert series. This invites us to study them with the tools of invariant theory. Ap…
Hilbert series for covariants and their applications to Minimal Flavor Violation
Benjamín Grinstein, Xiaochuan Lu, Luca Merlo +1
We elaborate how to apply the Hilbert series method to enumerating group covariants, which transform under any given representation, including but going beyond group invariants. Ma…
Conference Summary
Benjamin Grinstein
Conference Summary at FPCP04