Results 11 to 20 of about 103,119 (259)
The effective field theory of inflation [PDF]
Journal of High Energy Physics, 2008 26 pages.
Cheung, Clifford +4 more
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Effective field theories [PDF]
, 2008 These lectures introduce some of the basic notions of effective field theories, as used in particle physics. The topics discussed are the $ΔS=1$ and $ΔS =2$ weak interactions, and chiral perturbation theory as applied to mesons, baryons, and hadrons containing heavy quarks.
Mack, G. +3 more
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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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Causal effective field theories
Physical Review D, 2022 Physical principles such as unitarity, causality, and locality can constrain the space of consistent effective field theories (EFTs) by imposing two-sided bounds on the allowed values of Wilson coefficients. In this paper, we consider the bounds that arise from the requirement of low-energy causality alone, without appealing to any assumptions about UV
Mariana Carrillo González +3 more
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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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On the development of effective field theory [PDF]
The European Physical Journal H, 2021 AbstractEditor’s note: One of the most important developments in theoretical particle physics at the end of the 20th century and beginning of the twenty-first century has been the development of effective field theories (EFTs). Pursuing an effective field theory approach is a methodology for constructing theories, where a set of core principles is ...
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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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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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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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