Results 21 to 30 of about 1,411,743 (333)

Holographic Schwinger-Keldysh effective field theories

open access: yesJournal of High Energy Physics, 2019
We construct a holographic dual of the Schwinger-Keldysh effective action for the dissipative low-energy dynamics of relativistic charged matter at strong coupling in a fixed thermal background.
Jan de Boer   +2 more
doaj   +1 more source

Heavy Quarkonium Physics from Effective Field Theories [PDF]

open access: yes, 2006
I review recent progress in heavy quarkonium physics from an effective field theory perspective. In this unifying framework, I discuss advances in perturbative calculations for low-lying quarkonium observables and in lattice calculations for high-lying ...
A. Vairo   +79 more
core   +2 more sources

Effective field theories as Lagrange spaces

open access: yesJournal 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
doaj   +1 more source

Effective Field Theories on Non-Commutative Space-Time [PDF]

open access: yes, 2003
We consider Yang-Mills theories formulated on a non-commutative space-time described by a space-time dependent anti-symmetric field $\theta^{\mu\nu}(x)$.
A. Anisimov   +34 more
core   +4 more sources

Effective field theories [PDF]

open access: yes, 2008
These lectures introduce some of the basic notions of effective field theories, as used in particle physics. The topics discussed are the $ S=1$ and $ S =2$ weak interactions, and chiral perturbation theory as applied to mesons, baryons, and hadrons containing heavy quarks.
openaire   +3 more sources

Effective field theory for leptoquarks

open access: yesJournal 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   +4 more sources

Operator dimensions from moduli

open access: yesJournal of High Energy Physics, 2017
We consider the operator spectrum of a three-dimensional N = 2 $$ \mathcal{N}=2 $$ superconformal field theory with a moduli space of one complex dimension, such as the fixed point theory with three chiral superfields X, Y, Z and a superpotential W = XYZ.
Simeon Hellerman   +2 more
doaj   +1 more source

Amplitude/operator basis in chiral perturbation theory

open access: yesJournal of High Energy Physics, 2023
We establish a systematic construction of the on-shell amplitude/operator basis for Chiral Perturbation Theory (ChPT) in D = 4 spacetime dimensions and with an arbitrary number of flavors N f .
Ian Low   +3 more
doaj   +1 more source

Effective field theories for heavy quarkonium [PDF]

open access: yes, 2004
We review recent theoretical developments in heavy quarkonium physics from the point of view of Effective Field Theories of QCD. We discuss Non-Relativistic QCD and concentrate on potential Non-Relativistic QCD.
Antonio Pineda   +68 more
core   +3 more sources

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