Results 41 to 50 of about 1,585 (136)
Custodial symmetry violation in the SMEFT [PDF]
Physical Review D, 2021 35 pages + appendices, 7 ...
Graham D. Kribs +3 more
openaire +2 more sources
Journal of High Energy Physics, 2022 Abstract We use the Fitmaker tool to incorporate the recent CDF measurement of mW in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SMEFT) including dimension-6 operators at linear order. We find that including any one of the SMEFT operators $$ \mathcal{O} $$ O
Bagnaschi, Emanuele +5 more
openaire +6 more sources
Two‐to‐Two Processes at an Electron‐Muon Collider
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 Based on a recent proposal to build an electron‐muon collider, we study two‐to‐two production processes e−μ+⟶ff¯, γγ that originate from dimension 6 and 8 operators. We compare the sensitivity to those effective couplings obtained at the collider with that of low energy measurements of μ⟶eγ, μ⟶ee¯e, and μ⟶e conversion that have recently been reported ...
Antonio O. Bouzas +2 more
wiley +1 more source
On the Impact of the LHC Run 2 Data on General Composite Higgs Scenarios
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 We study the impact of Run 2 LHC data on general composite Higgs scenarios, where nonlinear effects, mixing with additional scalars, and new fermionic degrees of freedom could simultaneously contribute to the modification of Higgs properties. We obtain new experimental limits on the scale of compositeness, the mixing with singlets and doublets with the
Charanjit K. Khosa +2 more
wiley +1 more source
The rise of SMEFT on-shell amplitudes [PDF]
Journal of High Energy Physics, 2019 Abstract We present a map between the tree-level Standard Model Effective Theory (SMEFT) in the Warsaw basis and massive on-shell amplitudes. As a first step, we focus on the electroweak sector without fermions. We describe the Feynman rules for a particular choice of input scheme and compare them with the 3-point massive ...
Rafael Aoude, Camila S. Machado
openaire +3 more sources
Scheming in the SMEFT. . . and a reparameterization invariance! [PDF]
Journal of High Energy Physics, 2017 41 pages, 8 tables, 8 figures. addendum in appendix - results obtained allowing two independent flavor contractions for the operator Q_ll in the U(3)^5 flavor symmetric ...
Brivio I., Trott M.
openaire +5 more sources
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017), 2017 5 + 1 pages, 2 figures. Contribution to the proceedings of EPS-HEP 2017, European Physical Society conference on High Energy Physics, 5-12 July 2017, Venice ...
openaire +3 more sources
Mapping the SMEFT to discoverable models [PDF]
, 2023 The matching of specific new physics scenarios onto the SMEFT framework is a well-understood procedure. The inverse problem, the matching of the SMEFT to UV scenarios, is more difficult and requires the development of new methods to perform a systematic ...
Hirsch, Martin +4 more
core +2 more sources
Non-standard interactions in SMEFT confronted with terrestrial neutrino experiments
Journal of High Energy Physics, 2021 The Standard Model Effective Field Theory (SMEFT) provides a systematic and model-independent framework to study neutrino non-standard interactions (NSIs).
Yong Du +4 more
doaj +1 more source
SMEFT calculations for the LHC [PDF]
Proceedings of The Ninth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2021), 2021 This talk summarizes the status of calculations in the Standard Model Effective Field Theory and gives an overview of the computational techniques that are most commonly employed in order to make predictions for LHC processes in this framework.
openaire +2 more sources