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arXiv · 1410.8761

Results on the disconnected contributions for hadron structure

Constantia Alexandrou·Martha Constantinou·Vincent Drach·Kyriakos Hadjiyiannakou·Karl Jansen·Giannis Koutsou·Alejandro Vaquero
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Abstract

We present results on the disconnected contributions to three point functions entering in studies of hadron structure. We use $N_F = 2+1+1$ twisted mass fermions and give a detailed description on the results of the nucleon σ-terms, isoscalar axial charge and first moments of bare parton distributions for a range of pions masses. In addition we give the σ-terms and the computations are performed using QUDA code implemented on GPUs.

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Constantia Alexandrou, Martha Constantinou, Vincent Drach, Kyriakos Hadjiyiannakou, Karl Jansen, Giannis Koutsou, Alejandro Vaquero. 2014-12-19. Results on the disconnected contributions for hadron structure. https://arxiv.org/abs/1410.8761

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