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9 research outcomes, page 1 of 1
  • publication . Article . Other literature type . Preprint . 2018
    Open Access English
    Authors:
    Ondřej Šubrt; Ana Sofia Nunes; Jan Friedrich; Márcia Quaresma; Aram Kotzinian; Andrzej Rychter; Antonín Květoň; Annika Thiel; Boris Grube; Jan Matousek; ...
    Publisher: HAL CCSD
    Project: NSF | A Program of Medium Energ... (1506416), NSF | Extensible Computational ... (1415459), EC | HADRONPHYSICS3 (283286)

    We present a new amplitude analysis of the $\eta\pi$ $D$-wave in $\pi^- p\to \eta\pi^- p$ measured by COMPASS. Employing an analytical model based on the principles of the relativistic $S$-matrix, we find two resonances that can be identified with the $a_2(1320)$ and th...

  • publication . Article . Other literature type . Preprint . 2013
    Open Access
    Authors:
    Alessandro Bacchetta; Aurore Courtoy;
    Publisher: Springer Science and Business Media LLC
    Project: EC | HADRONPHYSICS3 (283286)

    Comment: 23 pages, 4 (multiple) figures; JHEP style

  • publication . Article . Conference object . 2014
    Open Access English
    Authors:
    Wouter Deconinck; Michael Tytgat; Zaven Hakopov; Paul Reimer; Luigi Lagamba; Evaristo Cisbani; Naryshkin Iurii; Frank Ellinghaus; Matthias Hoek; Wolfgang Lorenzon; ...
    Publisher: Elsevier
    Project: EC | HADRONPHYSICS3 (283286), NSERC

    Single-spin asymmetries were investigated in inclusive electroproduction of charged pions and kaons from transversely polarized protons at the HERMES experiment. The asymmetries were studied as a function of the azimuthal angle psi about the beam direction between the t...

  • publication . Article . Preprint . 2012
    Open Access English
    Authors:
    Cedric Lorce; Barbara Pasquini;
    Publisher: HAL CCSD
    Project: EC | HADRONPHYSICS3 (283286)

    We study the connection between the quark orbital angular momentum and the pretzelosity transverse-momentum dependent parton distribution function. We discuss the origin of this relation in quark models, identifying as key ingredient for its validity the assumption of s...

  • publication . Article . Other literature type . Preprint . 2014
    Open Access English
    Authors:
    Luigi Lagamba; Michael Tytgat; Wouter Deconinck; Zaven Hakopov; Paul Reimer; Evaristo Cisbani; Naryshkin Iurii; Frank Ellinghaus; Matthias Hoek;
    Publisher: American Physical Society
    Project: EC | HADRONPHYSICS3 (283286)

    An earlier extraction from the HERMES experiment of the polarization-averaged parton distribution of strange quarks in the nucleon has been reevaluated using final data on the multiplicities of charged kaons in semi-inclusive deep-inelastic scattering obtained with a ki...

  • publication . Conference object . Preprint . Other literature type . 2012
    Open Access English
    Authors:
    Courtoy, A.; Bacchetta, Alessandro; Radici, Marco;
    Publisher: Deutsches Elektronen-Synchrotron, DESY
    Project: EC | HADRONPHYSICS3 (283286)

    Comment: To appear in the proceedings of the XX International Workshop on Deep-Inelastic Scattering, Bonn, Germany, March 26-30, 2012 and of the Sixth International Conference on Quarks and Nuclear Physics, Palaiseau, France, April 16-20, 2012. Contain DISproc.cls and ....

  • publication . Conference object . 2012
    Open Access English
    Authors:
    Courtoy, Aurore; Bacchetta, Alessandro; Radici, Marco;
    Project: EC | HADRONPHYSICS3 (283286)

    We report on the extraction of dihadron fragmentation functions (DiFF) from the semi- inclusive production of two hadron pairs in back-to-back jets in e+e− annihilation. A nonzero asymmetry in the correlation of azimuthal orientations of opposite π+π− pairs is related t...

  • publication . Article . Preprint . 2012
    Open Access English
    Authors:
    Courtoy, Aurore; Bacchetta, Alessandro; Radici, Marco; Bianconi, Andrea;
    Project: EC | HADRONPHYSICS3 (283286)

    Comment: 17 pages, 7 (multiple) figures, 15 tables, RevTeX format; refined version of the fit, conclusions unchanged; added reference

  • publication . Article . Preprint . 2014
    Open Access English
    Authors:
    Luigi Lagamba; Michael Tytgat; Xianguo Lu; Wouter Deconinck; Paul Reimer; Evaristo Cisbani; Naryshkin Iurii; Frank Ellinghaus;
    Publisher: SPRINGER
    Project: NSERC , EC | HADRONPHYSICS3 (283286)

    The beam-helicity asymmetry in associated electroproduction of real photons, $ep\to e\gamma \pi N$, in the $\Delta$(1232)-resonance region is measured using the longitudinally polarized HERA positron beam and an unpolarized hydrogen target. Azimuthal Fourier amplitudes ...

9 research outcomes, page 1 of 1
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