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Light-cone distribution amplitudes of the baryon octet

  • Regular Article - Theoretical Physics
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  • Published: 10 February 2016
  • Volume 2016, article number 70, (2016)
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Light-cone distribution amplitudes of the baryon octet
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  • Gunnar S. Bali1,2,
  • Vladimir M. Braun1,
  • Meinulf Göckeler1,
  • Michael Gruber1,
  • Fabian Hutzler1,
  • Andreas Schäfer1,
  • Rainer W. Schiel1,
  • Jakob Simeth1,
  • Wolfgang Söldner1,
  • Andre Sternbeck3 &
  • …
  • Philipp Wein1 

  • 663 Accesses

  • 2 Altmetric

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A preprint version of the article is available at arXiv.

Abstract

We present results of the first ab initio lattice QCD calculation of the normalization constants and first moments of the leading twist distribution amplitudes of the full baryon octet, corresponding to the small transverse distance limit of the associated S-wave light-cone wave functions. The P-wave (higher twist) normalization constants are evaluated as well. The calculation is done using N f = 2 + 1 flavors of dynamical (clover) fermions on lattices of different volumes and pion masses down to 222 MeV. Significant SU(3) flavor symmetry violation effects in the shape of the distribution amplitudes are observed.

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This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Regensburg, Universitätsstraße 31, D-93040, Regensburg, Germany

    Gunnar S. Bali, Vladimir M. Braun, Meinulf Göckeler, Michael Gruber, Fabian Hutzler, Andreas Schäfer, Rainer W. Schiel, Jakob Simeth, Wolfgang Söldner & Philipp Wein

  2. Department of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400005, India

    Gunnar S. Bali

  3. Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, D-07743, Jena, Germany

    Andre Sternbeck

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  1. Gunnar S. Bali
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Correspondence to Philipp Wein.

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ArXiv ePrint: 1512.02050

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Bali, G.S., Braun, V.M., Göckeler, M. et al. Light-cone distribution amplitudes of the baryon octet. J. High Energ. Phys. 2016, 70 (2016). https://doi.org/10.1007/JHEP02(2016)070

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  • Received: 10 December 2015

  • Accepted: 20 January 2016

  • Published: 10 February 2016

  • DOI: https://doi.org/10.1007/JHEP02(2016)070

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Keywords

  • Lattice QCD
  • Nonperturbative Effects
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