Results 21 to 30 of about 3,289,970 (333)

Effective field theories from QCD [PDF]

open access: greenNuclear Physics B - Proceedings Supplements, 1995
We present a method for extracting effective Lagrangians from QCD. The resulting effective Lagrangians are based on exact rewrites of cut-off QCD in terms of these new collective field degrees of freedom. These cut-off Lagrangians are thus ``effective'' in the sense that they explicitly contain some of the physical long-distance degrees of freedom from
R. Sollacher
openalex   +4 more sources

Chiral kinetic theory from effective field theory revisited

open access: yesJournal of High Energy Physics, 2019
We revisit the chiral kinetic equation from high density effective theory approach, finding a chiral kinetic equation differs from counterpart derived from field theory in high order terms in the O(1/μ) expansion, but in agreement with the equation ...
Shu Lin, Aradhya Shukla
doaj   +1 more source

Effective field theories on solitons of generic shapes

open access: yesPhysics Letters B, 2015
A class of effective field theories for moduli or collective coordinates on solitons of generic shapes is constructed. As an illustration, we consider effective field theories living on solitons in the O(4) non-linear sigma model with higher-derivative ...
Sven Bjarke Gudnason, Muneto Nitta
doaj   +1 more source

Beryllium-9 in cluster effective field theory

open access: yesSciPost Physics Proceedings, 2020
We study the 9 Be ground-state energy with non-local αn and αα potentials derived from Cluster Effective Field Theory. The short-distance dependence of the interaction is regulated with a momentum cutoff.
Elena Filandri, Paolo Andreatta, Carlo A. Manzata, Chen Ji, W. Leidemann, G. Orlandini
doaj   +1 more source

Quasiparticle Properties in Effective Field Theory [PDF]

open access: yes, 2002
The quasiparticle concept is an important tool for the description of many-body systems. We study the quasiparticle properties for dilute Fermi systems with short-ranged, repulsive interactions using effective field theory.
Baker   +38 more
core   +2 more sources

Consistency Relations in Effective Field Theory [PDF]

open access: yes, 2017
The consistency relations in large scale structure relate the lower-order correlation functions with their higher-order counterparts. They are direct outcome of the underlying symmetries of a dynamical system and can be tested using data from future ...
Munshi, Dipak, Regan, Donough
core   +2 more sources

Effective field theory of 3He

open access: yesEPJ Web of Conferences, 2012
We report the results of our recent calculations of three nucleon bound states,3H and 3He, in pionless effective field theory including di-baryon fields at leading order, treating the Coulomb interaction nonperturbatively.
Ando S.-I.
doaj   +1 more source

Loops in AdS: from the spectral representation to position space. Part II

open access: yesJournal 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
doaj   +1 more source

Fab Four effective field theory treatment

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The article addresses the John interaction from Fab Four class of Horndeski models from the effective field theory point of view. Models with this interaction are heavily constrained by gravitational wave speed observations, so it is important to ...
B. Latosh
doaj   +1 more source

Effective field theory for non-relativistic hydrodynamics

open access: yesJournal of High Energy Physics, 2020
We write down a Schwinger-Keldysh effective field theory for non-relativistic (Galilean) hydrodynamics. We use the null background construction to covariantly couple Galilean field theories to a set of background sources.
Akash Jain
doaj   +1 more source

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