Journal Article

FZJ-2017-00603

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Remarks on the pion–nucleon σ-term

Hoferichter, M. (Corresponding author) ; Ruiz de Elvira, J. ; Kubis, B. ; Meißner, U.-G.FZJ*

2016
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/13484  doi:10.1016/j.physletb.2016.06.038

Abstract: The pion–nucleon σ-term can be stringently constrained by the combination of analyticity, unitarity, and crossing symmetry with phenomenological information on the pion–nucleon scattering lengths. Recently, lattice calculations at the physical point have been reported that find lower values by about 3σ with respect to the phenomenological determination. We point out that a lattice measurement of the pion–nucleon scattering lengths could help resolve the situation by testing the values extracted from spectroscopy measurements in pionic atoms.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)

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 2016

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Database coverage:
; ; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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