Extending Chiral Perturbation Theory with an Isosinglet Scalar

Martin Hansen, Kasper Langaeble, Francesco Sannino

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Abstrakt

We augment the chiral Lagrangian by an isosinglet scalar and compute the one-loop radiative corrections to the pion mass and decay constant, as well as the scalar mass. The calculations are carried out for different patterns of chiral symmetry breaking of immediate relevance for phenomenology and lattice investigations. By construction our results encompass several interesting limits, ranging from the dilaton to the linear sigma model.
OriginalsprogEngelsk
Artikelnummer036005
TidsskriftPhysical Review D
Vol/bind95
Udgave nummer3
Antal sider11
ISSN2470-0010
DOI
StatusUdgivet - 2017

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