Journal Article

FZJ-2021-00163

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Contraction diagram analysis in pion-kaon scattering

Kalmahalli Guruswamy, C. ; Meißner, U.-G.FZJ* ; Seng, C.-Y. (Corresponding author)

2020
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/26729  doi:10.1016/j.nuclphysb.2020.115091

Abstract: We study the contributions from the connected and disconnected contraction diagrams to the pion-kaon scattering amplitude within the framework of SU partially-quenched chiral perturbation theory. Combining this with a finite-volume analysis, we demonstrate that a lattice calculation of the easier computable connected correlation functions is able to provide valuable information of the noisier disconnected correlation functions, and may serve as a theory guidance for the future refinement of the corresponding lattice techniques.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)

Appears in the scientific report 2020

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Database coverage:
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