Results 11 to 20 of about 3,754 (159)
European Physical Journal C: Particles and Fields, 2023 This work is based on a bottom-up approach to the standard-model effective field theory (SMEFT), resulting in an equiprobable space of Wilson coefficients.
Federico Camponovo, Giampiero Passarino
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Journal of High Energy Physics, 2021 There are two canonical approaches to treating the Standard Model as an Effective Field Theory (EFT): Standard Model EFT (SMEFT), expressed in the electroweak symmetric phase utilizing the Higgs doublet, and Higgs EFT (HEFT), expressed in the broken ...
Timothy Cohen +3 more
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SMEFT as a slice of HEFT’s parameter space [PDF]
EPJ Web of Conferences, 2022 The Standard Model Effective Field Theory (SMEFT) is the parametrization chosen to interpret many modern measurements. We have recently discussed, building on the work of other groups, that its overall framework can be experimentally tested, beyond ...
Salas-Bernárdez Alexandre +3 more
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SMEFT atlas of ∆F = 2 transitions [PDF]
Journal of High Energy Physics, 2020 We present a model-independent anatomy of the ∆F = 2 transitions K 0 − K ¯ 0 $$ {\overline{K}}^0 $$ , B s,d − B ¯ s , d $$ {\overline{B}}_{s,d} $$ and D 0 − D ¯ 0 $$ {\overline{D}}^0 $$ in the context of the Standard Model Effective Field Theory (SMEFT).
Jason Aebischer +3 more
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Loop counting matters in SMEFT
SciPost Physics, 2023 We show that, in addition to the counting of canonical dimensions, a counting of loop orders is necessary to fully specify the power counting of Standard Model Effective Field Theory (SMEFT).
Gerhard Buchalla, Gudrun Heinrich, Christoph Müller-Salditt, Florian Pandler
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ALP — SMEFT interference [PDF]
Journal of High Energy Physics, 2021 Abstract The Standard Model Effective Field Theory (SMEFT) offers a powerful theoretical framework for parameterizing the low-energy effects of heavy new particles with masses far above the scale of electroweak symmetry breaking. Additional light degrees of freedom extend the effective theory.
Galda, Anne Mareike +2 more
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Triple-gauge couplings in LHC diboson production: a SMEFT view from every angle
Journal of High Energy PhysicsThis study explores fully leptonic WZ and WW production at the LHC within the SMEFT framework at NLO in QCD, focusing on both CP-even and CP-odd triple-gauge-coupling dimension-six operators.
Giovanni Pelliccioli +2 more
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Custodial symmetry violation in the SMEFT [PDF]
Physical Review D, 2021 35 pages + appendices, 7 ...
Graham D. Kribs +3 more
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Leptonic anomalous magnetic moments in ν SMEFT [PDF]
Journal of High Energy Physics, 2021 Abstract We investigate contributions to the anomalous magnetic moments of charged leptons in the neutrino-extended Standard Model Effective Field Theory (νSMEFT). We discuss how νSMEFT operators can contribute to a lepton’s magnetic moment at one- and two-loop order.
Vincenzo Cirigliano +5 more
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Higgs decays to two leptons and a photon beyond leading order in the SMEFT
SciPost Physics, 2022 We present the three-body decay of the Higgs boson into two leptons and a photon to dimension-eight in the Standard Model Effective Field Theory (SMEFT).
Tyler Corbett, Thor Rasmussen
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