Results 21 to 30 of about 2,908,361 (369)
(In)equivalence of metric-affine and metric effective field theories [PDF]
The European Physical Journal C, 2022 In a geometrical approach to gravity the metric and the (gravitational) connection can be independent and one deals with metric-affine theories. We construct the most general action of metric-affine effective field theories, including a generic matter ...
G. Pradisi, A. Salvio
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On effective field theories with celestial duals [PDF]
Journal of High Energy Physics, 2022 We show that associativity of the tree-level OPE in a celestial CFT imposes constraints on the coupling constants of the corresponding bulk theory. These constraints are the same as those derived in [ 9 ] from the Jacobi identity of the algebra of soft ...
Lecheng Ren +3 more
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Simulating Collider Physics on Quantum Computers Using Effective Field Theories. [PDF]
Physical Review Letters, 2021 Simulating the full dynamics of a quantum field theory over a wide range of energies requires exceptionally large quantum computing resources. Yet for many observables in particle physics, perturbative techniques are sufficient to accurately model all ...
C. Bauer, B. Nachman, M. Freytsis
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Positivity in Multifield Effective Field Theories. [PDF]
Physical Review Letters, 2021 We discuss the general method for obtaining full positivity bounds on multifield effective field theories (EFTs). While the leading order forward positivity bounds are commonly derived from the elastic scattering of two (superposed) external states, we ...
Xu Li +4 more
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The Higgs-portal for dark matter: effective field theories versus concrete realizations [PDF]
The European Physical Journal C, 2021 Higgs-portal effective field theories are widely used as benchmarks in order to interpret collider and astroparticle searches for dark matter (DM) particles.
G. Arcadi, A. Djouadi, Marumi Kado
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Operator bases in effective field theories with sterile neutrinos: d ≤ 9 [PDF]
Journal of High Energy Physics, 2021 We obtain the complete and independent bases of effective operators at mass dimension 5, 6, 7, 8, 9 in both standard model effective field theory with light sterile right-handed neutrinos (νSMEFT) and low energy effective field theory with light sterile ...
Hao-Lin Li +4 more
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Causality Constraints on Gravitational Effective Field Theories. [PDF]
Physical Review Letters, 2021 We consider the effective field theory of gravity around black holes, and show that the coefficients of the dimension-8 operators are tightly constrained by causality considerations.
Claudia de Rham, A. Tolley, Jun Zhang
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Fractons in effective field theories for spontaneously broken translations [PDF]
Physical Review D, 2021 We study the concomitant breaking of spatial translations and dilatations in Ginzburg-Landau-like models, where the dynamics responsible for the symmetry breaking is described by an effective Mexican hat potential for spatial gradients.
Riccardo Argurio +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
openaire +3 more sources
Constructing operator basis in supersymmetry: a Hilbert series approach
Journal of High Energy Physics, 2023 In this paper we introduce a Hilbert series approach to build the operator basis for a N = 1 supersymmetry theory with chiral superfields. We give explicitly the form of the corrections that remove redundancies due to the equations of motion and ...
Antonio Delgado +2 more
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