Results 41 to 50 of about 115,577 (299)
EFT beyond the horizon:stochastic inflation and how primordial quantum fluctuations go classical [PDF]
, 2014 We identify the effective theory describing inflationary super-Hubble scales and show it to be a special case of effective field theories appropriate to open systems.
Burgess, C. P. +10 more
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Effective Field Theory of 3He [PDF]
Few-Body Systems, 2010 3He and the triton are studied as three-body bound states in the effective field theory without pions. We study 3He using the set of integral equations developed by Kok et al. which includes the full off-shell T-matrix for the Coulomb interaction between the protons.
Ando, Shung Ichi, Birse, Michael C.
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Amplitude/operator basis in chiral perturbation theory
Journal 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
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The Lamb shift in muonic hydrogen and the proton radius from effective field theories
, 2015 We comprehensively analyse the theoretical prediction for the Lamb shift in muonic hydrogen, and the associated determination of the proton radius. We use effective field theories.
Pineda, Antonio +3 more
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An Introduction to Effective Field Theory [PDF]
Annual Review of Nuclear and Particle Science, 2007 This review summarizes effective field theory techniques, which are the modern theoretical tools for exploiting the existence of hierarchies of scale in a physical problem. The general theoretical framework is described and evaluated explicitly for a simple model. Power-counting results are illustrated for a few cases of practical interest, and several
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Homological classification of topological terms in sigma models on homogeneous spaces
Journal of High Energy Physics, 2018 We classify the topological terms (in a sense to be made precise) that may appear in a non-linear sigma model based on maps from an arbitrary worldvolume manifold to a homogeneous space G/H (where G is an arbitrary Lie group and H ⊂ G).
Joe Davighi, Ben Gripaios
doaj +1 more source
Remarks on quiver gauge theories from open topological string theory [PDF]
, 2010 We study effective quiver gauge theories arising from a stack of D3-branes on certain Calabi-Yau singularities. Our point of view is a first principle approach via open topological string theory.
Carqueville, N. +3 more
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The hypertriton in effective field theory [PDF]
Nuclear Physics A, 2002 Doublet Lambda d scattering and the hypertriton are studied in the framework of an effective field theory for large scattering lengths. As in the triton case, consistent renormalization requires a one-parameter three-body force at leading order whose renormalization group evolution is governed by a limit cycle.
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Ghostbusters: unitarity and causality of non-equilibrium effective field theories
Journal of High Energy Physics, 2020 : For a non-equilibrium physical system defined along a closed time path (CTP), a key constraint is the so-called largest time equation, which is a consequence of unitarity and implies causality.
Ping Gao, Paolo Glorioso, Hong Liu
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Loops in AdS: from the spectral representation to position space. Part II
Journal of High Energy Physics, 2021 We continue the study of AdS loop amplitudes in the spectral representation and in position space. We compute the finite coupling 4-point function in position space for the large-N conformal Gross Neveu model on AdS 3.
Dean Carmi
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