Results 31 to 40 of about 3,683 (143)
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 ...
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A global analysis of axion-like particle interactions using SMEFT fits
Journal of High Energy Physics, 2023 In the presence of axions or axion-like particles (ALPs) that couple to the Standard Model via dimension-five interactions, dimension-six SMEFT interactions are generated via renormalization-group evolution.
Anke Biekötter +3 more
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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.
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Scheming in the SMEFT... and a reparameterization invariance! [PDF]
, 2017 We explain a reparameterization invariance in the Standard Model Effective Field Theory present when considering $\bar{\psi} \psi \rightarrow \bar{\psi} \psi$ scatterings (with $\psi$ a fermion) and how this leads to unconstrained combinations of Wilson ...
Brivio, Ilaria, Trott, Michael
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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
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Physical Review D, 2022 We study the modular symmetric standard-model effective field theory. We employ the stringy Ansatz on coupling structure that 4-point couplings $y^{(4)}$ of matter fields are written by a product of 3-point couplings $y^{(3)}$ of matter fields, i.e., $y^{(4)} = y^{(3)}y^{(3)}$.
Tatsuo Kobayashi +3 more
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, 2020 This is the first paper of our systematic efforts on lepton number violating (LNV) hadronic decays in the effective field theory approach. These decays provide information complementary to popular nuclear neutrinoless double-$\beta$ ($0\nu\beta\beta ...
Liao, Yi, Ma, Xiao-Dong, Wang, Hao-Lin
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Higgs boson production at large transverse momentum within SMEFT: analytical results [PDF]
, 2018 We consider Higgs boson production through gluon fusion at large transverse momentum in hadronic collisions. We present the analytic expressions of the relevant one-loop QCD amplitudes including the effects of the complete set of dimension-six operators.
Grazzini, Massimiliano +2 more
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Dimension-8 Operators in the Standard Model Effective Field Theory
, 2021 We present a complete basis of dimension-8 operators in the Standard Model Effective Field Theory. Attention is paid to operators that vanish in the absence of flavor structure. The 44,807 operators are encoded in 1,029 Lagrangian terms.
Murphy, Christopher W.
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Leading directions in the SMEFT
Journal of High Energy Physics, 2023 Abstract Short-distance new physics at (or slightly) above the TeV scale should not excessively violate the approximate flavor symmetries of the SM in order to comply with stringent constraints from flavor-changing neutral currents.
Admir Greljo, Ajdin Palavrić
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