Hilbert series, the Higgs mechanism, and HEFT

L Gráf, B Henning, X Lu, T Melia… - Journal of High Energy …, 2023 - Springer
A bstract We expand Hilbert series technologies in effective field theory for the inclusion of
massive particles, enabling, among other things, the enumeration of operator bases for non …

Standard Model EFTs via on-shell methods

MA Huber, S De Angelis - Journal of High Energy Physics, 2021 - Springer
A bstract We present the Standard Model Effective Field Theories (SMEFT) from purely on-
shell arguments. Starting from few basics assumptions such as Poincaré invariance and …

Operators for generic effective field theory at any dimension: on-shell amplitude basis construction

HL Li, Z Ren, ML Xiao, JH Yu, YH Zheng - Journal of High Energy Physics, 2022 - Springer
A bstract We describe a general procedure to construct the independent and complete
operator bases for generic Lorentz invariant effective field theories, given any kind of gauge …

Tidal effects for spinning particles

R Aoude, K Haddad, A Helset - Journal of High Energy Physics, 2021 - Springer
A bstract Expanding on the recent derivation of tidal actions for scalar particles, we present
here the action for a tidally deformed spin-1/2 particle. Focusing on operators containing two …

Unitarity violation and the geometry of Higgs EFTs

T Cohen, N Craig, X Lu, D Sutherland - Journal of High Energy Physics, 2021 - Springer
A bstract We derive the scale of unitarity violation from the geometry of Effective Field Theory
(EFT) extensions of the Standard Model Higgs sector. The high-energy behavior of …

An EFT hunter's guide to two-to-two scattering: HEFT and SMEFT on-shell amplitudes

H Liu, T Ma, Y Shadmi, M Waterbury - Journal of High Energy Physics, 2023 - Springer
A bstract We derive the contact terms contributing to the four-point amplitudes of the
standard model particles, keeping terms with up to quartic energy growth. Imposing just the …

Opportunistic CP violation

Q Bonnefoy, E Gendy, C Grojean… - Journal of High Energy …, 2023 - Springer
A bstract In the electroweak sector of the Standard Model, CP violation arises through a very
particular interplay between the three quark generations, as described by the Cabibbo …

The 2PM Hamiltonian for binary Kerr to quartic in spin

WM Chen, MZ Chung, Y Huang, JW Kim - Journal of High Energy Physics, 2022 - Springer
A bstract From the S-matrix of spinning particles, we extract the 2 PM conservative potential
for binary spinning black holes up to quartic order in spin operators. An important ingredient …

Composing effective prediction at five points

JJM Carrasco, L Rodina, S Zekioğlu - Journal of High Energy Physics, 2021 - Springer
A bstract Color-kinematics duality in the adjoint has proven key to the relationship between
gauge and gravity theory scattering amplitude predictions. In recent work, we demonstrated …

Amplitude bases in generic EFTs

S De Angelis - Journal of High Energy Physics, 2022 - Springer
A bstract We present for the first time an efficient algorithm to find a basis of kinematically
independent structures built of (massless and massive) spinor helicity variables in four …