Nucleon Observables as Probes for Physics Beyond the Standard Model

Constantia Alexandrou (), Karl Jansen (), Giannis Koutsou () and Carsten Urbach ()
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Constantia Alexandrou: University of Cyprus, Department of Physics
Karl Jansen: NIC, DESY
Giannis Koutsou: The Cyprus Institute, Computation-Based Science and Technology Research Center
Carsten Urbach: Universität Bonn, Helmholtz-Institut für Strahlen-und Kernphysik (Theorie) and Bethe Center for Theoretical Physics

A chapter in High Performance Computing in Science and Engineering ´16, 2016, pp 97-105 from Springer

Abstract: Abstract We discuss the results of our ongoing project on Hazel Hen at HLRS concerning observables that shed light on the inner structure of the proton and other hadrons. We use techniques from lattice quantum chromodynamics to evaluate these observables on a gluon field ensemble of a 483 × 96 lattice at a lattice spacing of a = 0. 094(1) fm. The novelty of this ensemble is that it is generated directly at the physical value of the pion mass such that any extrapolation from heavier pion masses can be avoided, eliminating thus this systematic uncertainty. By employing state of the art lattice QCD algorithms we were able to compute the hadron spectrum, the axial and tensor charges moments of parton distribution functions and the quark contents of the nucleons.

Date: 2016
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DOI: 10.1007/978-3-319-47066-5_7

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