Contraction diagram analysis in pion-kaon scattering

We study the contributions from the connected and disconnected contraction diagrams to the pion-kaon scattering amplitude within the framework of SU(4|1) partially-quenched chiral perturbation theory. Combining this with a finite-volume analysis, we demonstrate that a lattice calculation of the easi...

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Bibliographic Details
Main Authors: Chaitra Kalmahalli Guruswamy, Ulf-G. Meißner, Chien-Yeah Seng
Format: Article
Language:English
Published: Elsevier 2020-08-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321320301772