Results 71 to 80 of about 4,744,635 (350)

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

Rearranging Pionless Effective Field Theory [PDF]

open access: yes, 2000
We point out a redundancy in the operator structure of the pionless effective field theory which dramatically simplifies computations. This redundancy is best exploited by using dibaryon fields as fundamental degrees of freedom.
Beane   +38 more
core   +4 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

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

Effective Field Theory Dimensional Regularization [PDF]

open access: yes, 2001
A Lorentz-covariant regularization scheme for effective field theories with an arbitrary number of propagating heavy and light particles is given.
A. I. Davydychev   +20 more
core   +2 more sources

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

Backgrounds in gravitational effective field theory [PDF]

open access: yes, 2020
Effective field theories describing gravity coupled to matter are investigated, allowing for operators of arbitrary mass dimension. Terms violating local Lorentz and diffeomorphism invariance while preserving internal gauge symmetries are included.
A. Kostelecký, Zonghao Li
semanticscholar   +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

Direct astrophysical tests of chiral effective field theory at supranuclear densities [PDF]

open access: yes, 2020
Recent observations of neutron stars with gravitational waves and X-ray timing provide unprecedented access to the equation of state (EoS) of cold dense matter at densities difficult to realize in terrestrial experiments.
R. Essick   +4 more
semanticscholar   +1 more source

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