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Nucleon Observables as Probes for Physics Beyond the Standard Model

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High Performance Computing in Science and Engineering ´16

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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.

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Acknowledgements

We would like to thank all members of the European Twisted Mass Collaboration (ETMC) in which this work is embedded for a most enjoyable and fruitful collaboration. Without this common effort it would have not been possible to obtain the interesting and important results described in this report.

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Authors and Affiliations

  1. Department of Physics, University of Cyprus, 20537, 1678, Nicosia, Cyprus

    Constantia Alexandrou

  2. NIC, DESY, Platanenallee 6, 17538, Zeuthen, Germany

    Karl Jansen

  3. Computation-Based Science and Technology Research Center, The Cyprus Institute, 20 Kavafi Str., 2121, Nicosia, Cyprus

    Giannis Koutsou

  4. Helmholtz-Institut für Strahlen-und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, 53115, Bonn, Germany

    Carsten Urbach

Authors
  1. Constantia Alexandrou
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  2. Karl Jansen
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  3. Giannis Koutsou
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  4. Carsten Urbach
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Corresponding author

Correspondence to Karl Jansen .

Editor information

Editors and Affiliations

  1. Zentrum für Informationsdienste und Hochleistungsrechnen (ZIH), Technische Universität Dresden, Dresden, Germany

    Wolfgang E. Nagel

  2. Abteilung für Angewandte Mathematik, Universität Freiburg, Freiburg, Germany

    Dietmar H. Kröner

  3. Höchstleistungsrechenzentrum Stuttgart (HLRS), Universität Stuttgart, Stuttgart, Germany

    Michael M. Resch

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© 2016 Springer International Publishing AG

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Alexandrou, C., Jansen, K., Koutsou, G., Urbach, C. (2016). Nucleon Observables as Probes for Physics Beyond the Standard Model. In: Nagel, W.E., Kröner, D.H., Resch, M.M. (eds) High Performance Computing in Science and Engineering ´16. Springer, Cham. https://doi.org/10.1007/978-3-319-47066-5_7

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