23–28 Jun 2014
Columbia University
US/Eastern timezone

Results on the disconnected contributions for hadron structure

24 Jun 2014, 16:50
20m
301 Pupin

301 Pupin

Speaker

Dr Alejandro Vaquero (The Cyprus Institute)

Description

We present results for $N_f=2+1+1$ twisted mass fermions on the disconnected contributions to the three point functions entering in studies of hadron structure. Emphasis is given to the nucleon sigma-terms, isoscalar axial charge and first moments of parton distributions for a range of pions masses. The computations are performed using QUDA code implemented on GPUs.

Primary author

Dr Alejandro Vaquero (The Cyprus Institute)

Co-authors

Prof. Constantia Alexandrou (University of Cyprus) Prof. Giannis Koutsou (The Cyprus Institute) Prof. Karl Jansen (DESY Zeuthen) Mr Kyriacos Hadjiyiannakou (University of Cyprus) Dr Vincent Drach (CP3 Origins & DIAS, University of Southern Denmark)

Presentation materials