Results 31 to 40 of about 1,044 (153)
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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On interference and non-interference in the SMEFT [PDF]
Journal of High Energy Physics, 2018 Abstract We discuss interference in the limit $$ {\widehat{m}}_W^2/s\to 0 $$ m ^ W 2 /
Helset, Andreas, Trott, Michael
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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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The Higgs width in the SMEFT [PDF]
Journal of High Energy Physics, 2019 Abstract We calculate the total and partial inclusive Higgs widths at leading order in the Standard Model Effective Field Theory (SMEFT). We report results incorporating SMEFT corrections for two and four body Higgs decays through vector currents in this limit. The narrow width approximation is avoided and all phase space integrals
Ilaria Brivio +3 more
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Flavourful SMEFT likelihood for Higgs and electroweak data
Journal of High Energy Physics, 2020 We perform an updated fit to LHC Higgs data and LEP electroweak precision tests in the framework of the Standard Model Effective Field Theory (SMEFT). We assume a generic structure of the SMEFT operators without imposing any flavour symmetries.
Adam Falkowski, David Straub
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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.
Richard Ruiz +6 more
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One loop verification of SMEFT Ward Identities [PDF]
SciPost Physics, 2021 We verify Standard Model Effective Field Theory Ward identities to one loop order when background field gauge is used to quantize the theory. The results we present lay the foundation of next to leading order automatic generation of results in the SMEFT, in both the perturbative and non-perturbative expansion using the geoSMEFT formalism, and ...
Corbett, Tyler, Trott, Michael
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The importance of flavor in SMEFT Electroweak Precision Fits
Journal of High Energy Physics, 2023 Effective field theory tools are essential for exploring non-Standard Model physics at the LHC in the absence of the discovery of new light particles.
Luigi Bellafronte +2 more
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Uncovering the root of LEFT in SMEFT [PDF]
Europhysics Letters, 2021 Abstract At energies below the electroweak scale, baryon number B and lepton number L violating processes are of significant importance in identifying the nature of UV extensions of the Standard Model. The imprint of UV theories on low-energy measurements can be calculated to a high accuracy using the theoretical framework of the Low ...
J. Chakrabortty +3 more
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