Strangeness of the nucleon from lattice QCD
Ημερομηνία
2015Συγγραφέας
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Constantinou, Martha
Dinter, S.
Drach, V.
Hadjiyiannakou, Kyriakos
Jansen, K.
Koutsou, Giannis
Vaquero, A.
ISSN
1550-7998Source
Physical Review D - Particles, Fields, Gravitation and CosmologyVolume
91Issue
9Google Scholar check
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
We present a nonperturbative calculation of the strangeness of the nucleon yN within the framework of lattice QCD. This observable is known to be an important cornerstone to interpret results from direct dark matter detection experiments. We perform a lattice computation for yN with an analysis of systematic effects originating from discretization, finite size, chiral extrapolation and excited state effects leading to the value of yN=0.173(50). The rather large uncertainty of this value of yN is dominated by systematic uncertainties which we are able to quantify in this work. © 2015 American Physical Society.