Journal Article

FZJ-2015-01783

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Finite-volume corrections to the CP-odd nucleon matrix elements of the electromagnetic current from the QCD vacuum angle

Akan, T. (Corresponding Author) ; Guo, F.-K. ; Meißner, U.-G.FZJ*

2014
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/23090  doi:10.1016/j.physletb.2014.07.022

Abstract: Nucleon electric dipole moments originating from strong CP-violation are being calculated by several groups using lattice QCD. We revisit the finite volume corrections to the CP-odd nucleon matrix elements of the electromagnetic current, which can be related to the electric dipole moments in the continuum, in the framework of chiral perturbation theory up to next-to-leading order taking into account the breaking of Lorentz symmetry. A chiral extrapolation of the recent lattice results of both the neutron and proton electric dipole moments is performed, which results in dn=(−2.7±1.2)×10−16eθ0 cmdn=(−2.7±1.2)×10−16eθ0 cm and dp=(2.1±1.2)×10−16eθ0 cmdp=(2.1±1.2)×10−16eθ0 cm.

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Contributing Institute(s):

1. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 531 - Hadron Structure and Dynamics (HSD) (POF2-531) (POF2-531)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)

Appears in the scientific report 2014

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Database coverage:
; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; 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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