Results 101 to 110 of about 3,683 (143)

Going beyond Top EFT

Journal of High Energy Physics
We present a new way to interpret Top Standard Model measurements going beyond the SMEFT framework. Instead of the usual paradigm in Top EFT, where the main effects come from tails in momenta distributions, we propose an interpretation in terms of new ...
André Lessa, Verónica Sanz
doaj   +1 more source

Energy-enhanced dimension eight SMEFT effects in VBF Higgs production

Journal of High Energy Physics
We study Higgs boson production via vector boson fusion at the LHC, focusing on the process pp → H + jj and capturing the leading energy-enhanced contributions within the Standard Model Effective Field Theory (SMEFT) up to order 1/Λ4.
Benoît Assi, Adam Martin
doaj   +1 more source

Walls, bubbles and doom — the cosmology of HEFT

Journal of High Energy Physics
As experiment charts new territory at the electroweak scale, the enterprise to characterise all possible theories becomes all the more necessary. In the absence of new particles, this ambitious enterprise is attainable and has led to the Higgs Effective ...
R. Alonso, J.C. Criado, R. Houtz, M. West   +3 more
doaj   +1 more source

RGE effects on new physics searches via gravitational waves

Journal of High Energy Physics
Gravitational wave (GW) observations offer a promising probe of new physics associated with a first-order electroweak phase transition. Precision studies of the Higgs potential, including Fisher matrix analyses, have been extensively conducted in this ...
Katsuya Hashino, Daiki Ueda
doaj   +1 more source

M W helps select Z ' models for b → s ℓ ℓ anomalies. [PDF]

Eur Phys J C Part Fields, 2022
Allanach B, Davighi J.
europepmc   +1 more source

A proof of concept for matchete: an automated tool for matching effective theories. [PDF]

Eur Phys J C Part Fields, 2023
Fuentes-Martín J, König M, Pagès J, Thomsen AE, Wilsch F.   +4 more
europepmc   +1 more source

Triboson production in the SMEFT

Journal of High Energy Physics
Abstract We study the production of three electroweak gauge bosons at the LHC, in the effective field theory of the standard model, at dimension six and next-to-leading order in QCD. We present results for inclusive cross-sections and differential distributions, finding that these QCD corrections are large, often vary across the ...
Eugenia Celada, Gauthier Durieux, Ken Mimasu, Eleni Vryonidou   +3 more
openaire   +3 more sources

Matching for FCNC effects in the flavour-symmetric SMEFT

Journal of High Energy Physics, 2019
We calculate the complete tree and one-loop matching of the dimension-six Standard Model Effective Field Theory (SMEFT) with unbroken U(3)5 flavour symmetry to the operators of the Weak Effective Theory (WET) which are responsible for flavour changing ...
Tobias Hurth, Sophie Renner, William Shepherd   +2 more
doaj   +1 more source

A viable Le-Lμ model with μ→e violation. [PDF]

Eur Phys J C Part Fields, 2023
Ardu M, Kirk F.
europepmc   +1 more source

Aligned yet large dipoles: a SMEFT study

Journal of High Energy Physics
Abstract We study a non-universal flavor scenario at the level of the Standard Model Effective Field Theory, according to which the matrix of Wilson coefficients c uW of an up-type electroweak quark dipole operator is aligned with the up-type Yukawa coupling. Such an alignment usually follows
Quentin Bonnefoy, Jonathan Kley, Di Liu, Alejo N. Rossia, Chang-Yuan Yao   +4 more
openaire   +7 more sources