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7 research outcomes, page 1 of 1
  • publication . Preprint . Article . Other literature type . 2013
    Open Access English
    Authors:
    Bruno El-Bennich; Kazuo Tsushima; Chen Chen; Adnan Bashir; David Wilson; Teresa Pena;
    Project: FCT | SFRH/BPD/26886/2006 (SFRH/BPD/26886/2006), EC | HADRONPHYSICS3 (283286), FCT | PTDC/FIS/113940/2009 (113940), NSF | Theoretical Investigation... (0903991), NSF | The Study of Nuclear Phys... (0856010)

    Studies of the structure of excited baryons are key to the N* program at Jefferson Lab. Within the first year of data taking with the Hall B CLAS12 detector following the 12 GeV upgrade, a dedicated experiment will aim to extract the N* electrocouplings at high photon v...

  • publication . Preprint . 2014
    Open Access English
    Authors:
    Biernat, Elmar P.; Schweiger, Wolfgang;
    Project: FCT | PTDC/FIS/113940/2009 (113940), FWF | Hadrones in vacuum, nucle... (W 1203), EC | HADRONPHYSICS3 (283286)

    Comment: 18 pages, 4 figures, a few typos corrected; version published in Phys. Rev. C

  • publication . Preprint . Conference object . 2014
    Open Access English
    Authors:
    Alfred Stadler; Elmar P. Biernat;
    Project: FCT | PTDC/FIS/113940/2009 (113940), EC | HADRONPHYSICS3 (283286)

    We present a model for the quark-antiquark interaction formulated in Minkowski space using the Covariant Spectator Theory. The quark propagators are dressed with the same kernel that describes the interaction between different quarks. By applying the axial-vector Ward-T...

  • publication . Preprint . Article . 2012
    Open Access English
    Authors:
    Ramalho, Gilberto; Peña, Maria Teresa; Stadler, Alfred;
    Project: FCT | PTDC/FIS/113940/2009 (113940), FCT | SFRH/BPD/26886/2006 (SFRH/BPD/26886/2006), EC | HADRONPHYSICS3 (283286)

    Comment: Extended introduction, references added, other small modifications. To appear in Phys. Rev. D. 14 pages, 8 figures

  • publication . Preprint . 2014
    Open Access English
    Authors:
    Biernat, Elmar P.; Peña, M. T.; Ribeiro, J. E.; Stadler, Alfred; Gross, Franz;
    Project: FCT | PTDC/FIS/113940/2009 (113940), EC | HADRONPHYSICS3 (283286)

    The pi-pi scattering amplitude calculated with a model for the quark-antiquark interaction in the framework of the Covariant Spectator Theory (CST) is shown to satisfy the Adler zero constraint imposed by chiral symmetry. The CST formalism is established in Minkowski sp...

  • publication . Preprint . Article . 2014
    Open Access English
    Authors:
    Teresa Pena; Elmar P. Biernat; Alfred Stadler; Sofia Leitão;
    Project: FCT | PTDC/FIS/113940/2009 (113940), EC | HADRONPHYSICS3 (283286)

    Relativistic equations of Bethe-Salpeter type for hadron structure are most conveniently formulated in momentum space. The presence of confining interactions causes complications because the corresponding kernels are singular. This occurs not only in the relativistic ca...

  • publication . Preprint . 2015
    Open Access English
    Authors:
    Ramalho, G.; Pena, M. T; Weil, J.; van Hees, H.; Mosel, U.;
    Project: FCT | PTDC/FIS/113940/2009 (113940), EC | HADRONPHYSICS3 (283286)

    Comment: 11 pages, 10 figures

7 research outcomes, page 1 of 1
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