477 citations · 4.4k across the 102 of their papers we have counts for
6 papers · 2 filters
Heavy Color-Octet Particles at the LHC
Chien-Yi Chen, Ayres Freitas, Tao Han +1
Many new-physics models, especially those with a color-triplet top-quark partner, contain a heavy color-octet state. The "naturalness" argument for a light Higgs boson requires tha…
Leptophilic Dark Matter in Lepton Interactions at LEP and ILC
Ayres Freitas, Susanne Westhoff
Dark matter particles that couple primarily to leptons are only weakly constrained by data from direct detection experiments and the LHC. However, models of this kind necessarily g…
Electroweak precision tests in the LHC era and Z-decay form factors at two-loop level
A. Freitas
The current status of electroweak precision tests after the discovery of the Higgs boson is reviewed, both from a phenomenological and from a theoretical point of view. Predictions…
Precision Measurements of Higgs Couplings: Implications for New Physics Scales
C. Englert, A. Freitas, M. Muhlleitner +4
The measured properties of the recently discovered Higgs boson are in good agreement with predictions from the Standard Model. However, small deviations in the Higgs couplings may…
Testing the Muon g-2 Anomaly at the LHC
Ayres Freitas, Joseph Lykken, Stefan Kell +1
The long-standing difference between the experimental measurement and the standard-model prediction for the muon's anomalous magnetic moment, , may be explained by…
Higher-order electroweak corrections to the partial widths and branching ratios of the Z boson
A. Freitas
Recently, the calculation of fermionic electroweak two-loop corrections to the total width of the Z boson and hadronic Z-peak cross-section in the Standard Model has been presented…