Results 11 to 20 of about 13,828,143 (298)
Computing tools for effective field theories [PDF]
European Physical Journal C: Particles and FieldsIn recent years, theoretical and phenomenological studies with effective field theories have become a trending and prolific line of research in the field of high-energy physics.
Jason Aebischer +32 more
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Effective field theories in Rξ gauges [PDF]
Journal of High Energy Physics, 2019 Abstract In effective quantum field theories, higher dimensional operators can affect the canonical normalization of kinetic terms at tree level. These contributions for scalars and gauge bosons should be carefully included in the gauge fixing procedure, in order to end up with a convenient set of Feynman rules.
Rosiek, Janusz +4 more
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Effective field theories as Lagrange spaces [PDF]
Journal of High Energy Physics, 2023 We present a formulation of scalar effective field theories in terms of the geometry of Lagrange spaces. The horizontal geometry of the Lagrange space generalizes the Riemannian geometry on the scalar field manifold, inducing a broad class of affine ...
Nathaniel Craig +3 more
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Effective Field Theories [PDF]
, 2013 This chapter reviews effective field theory (EFT) techniques, focusing on the intertheoretic relations between low-energy effective theories and their high-energy counterparts. It discusses how EFT can be interpreted and describes the steps in the construction of an EFT in the top-down and bottom-up approaches.
Blechman, Andrew E, Petrov, Alexey A
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The bases of effective field theories [PDF]
Nuclear Physics B, 2013 v2:Revised to include additional references, comments on renormalization, other minor changes.
Einhorn, Martin B., Wudka, José
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Effective field theory for leptoquarks
Journal of High Energy Physics, 2023 Abstract Leptoquarks enter in several extensions of the Standard Model as possible solutions to a number of observed anomalies. We work within the soft-collinear effective theory framework to present a detailed analysis of the decay rates of the three leptoquarks that appear the most in literature, the scalars S1 and S3 and the ...
Meçaj, Bianka, Neubert, Matthias
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Spin supplementary condition in quantum field theory: covariant SSC and physical state projection
Journal of High Energy Physics, 2023 The spin supplementary conditions are constraints on spin degrees of freedom in classical relativity which restricts physical degrees of freedom to rotations.
Jung-Wook Kim, Jan Steinhoff
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Effective field theories with instantons [PDF]
Nuclear Physics B, 1994 We explain how nonperturbative effects can be systematically included when constructing an effective field theory. We concentrate in particular on the matching calculation, by which a low energy theory without a heavy particle degree of freedom is matched onto the full theory.
Georgi, Howard, Osofsky, Samuel T.
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Journal of High Energy Physics, 2023 We derive the causality and unitarity constraints on dimension 6 and dimension 8 Gluon field strength operators in the Standard Model Effective Field Theory (SMEFT). In the first part of the paper, we use the ‘amplitude analysis’ i.e. dispersion relation
Diptimoy Ghosh +2 more
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Holographic effective field theories [PDF]
Journal of High Energy Physics, 2016 We derive the four-dimensional low-energy effective field theory governing the moduli space of strongly coupled superconformal quiver gauge theories associated with D3-branes at Calabi-Yau conical singularities in the holographic regime of validity. We use the dual supergravity description provided by warped resolved conical geometries with mobile D3 ...
MARTUCCI, LUCA, Zaffaroni, Alberto
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