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51 research outcomes, page 1 of 6
  • publication . Preprint . Article . 2013
    Open Access English
    Authors:
    Moutarde, H.; Pire, B.; Sabatié, F.; Szymanowski, L.; Wagner, J.;
    Project: EC | HADRONPHYSICS3 (283286)

    Timelike and spacelike virtual Compton scattering in the generalized Bjorken scaling regime are complementary tools to access generalized parton distributions. We stress that the gluonic contributions are by no means negligible, even in the medium energy range which wil...

  • publication . Preprint . Article . 2013
    Open Access English
    Authors:
    Altinoluk, T.; Pire, B.; Szymanowski, L.; Wallon, S.;
    Publisher: HAL CCSD
    Project: EC | HADRONPHYSICS3 (283286), EC | HOTLHC (279579)

    Double logarithms resummation has been much studied in inclusive as well as exclusive processes. The Sudakov mechanism has often be the crucial tool to exponentiate potentially large contributions to amplitudes or cross-sections near phase-space boundaries. We report on...

  • publication . Article . Preprint . 2013
    Open Access English
    Authors:
    Kirill Semenov-Tian-Shansky;
    Publisher: ELSEVIER SCIENCE BV
    Project: EC | HADRONPHYSICS3 (283286)

    The associated production of a $J/{\psi}$ and a $\pi$-meson in antiproton-nucleon annihilation is studied in the framework of QCD collinear factorization. In this approach, a hard subprocess responsible for the production of the heavy quark-antiquark pair factorizes fro...

  • publication . Article . Other literature type . Preprint . 2017
    Open Access English
    Authors:
    Philipp Jörg; Ondřej Šubrt; Ana Sofia Nunes; Jan Friedrich; Márcia Quaresma; Aram Kotzinian; Michael Pesek; Andrzej Rychter; Annika Thiel; Boris Grube; ...
    Publisher: Uppsala universitet, Kärnfysik
    Project: EC | HADRONPHYSICS3 (283286)

    The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. It was extracted from measurements of the azimuthal asymmetry of hadrons produced in semi-inclusive deep inelastic scattering of leptons off ...

  • publication . Article . Other literature type . Preprint . 2016
    Open Access English
    Authors:
    Cédric Mezrag; José Rodríguez-Quintero;
    Publisher: HAL CCSD
    Project: EC | HADRONPHYSICS3 (283286)

    We review recent works on the modelling of Generalised Parton Distributions within the Dyson-Schwinger formalism. We highlight how covariant computations, using the impulse approximation, allows one to fulfil most of the theoretical constraints of the GPDs. Specific att...

  • publication . Report . Preprint . Article . 2013
    Open Access English
    Authors:
    Andronic, A.; Arleo, F.; Arnaldi, R.; Bastid, N.; Batigne, G.; Bene, S.; Bruno, G. E.; Castillo, J.; Crochet, P.; Ferreiro, E. G.; ...
    Publisher: HAL CCSD
    Project: EC | HADRONPHYSICS3 (283286)

    Comment: 12 pages, 8 figures

  • publication . Other literature type . Article . Conference object . Preprint . 2013
    Open Access
    Authors:
    Franck Sabatie;
    Publisher: American Physical Society (APS)
    Project: EC | HADRONPHYSICS3 (283286)

    International audience; We study timelike and spacelike virtual Compton scattering in the generalized Bjorken scaling regime at next to leading order in the strong coupling constant, in the medium energy range which will be studied intensely at JLab12 and in the COMPASS...

  • publication . Preprint . Conference object . 2012
    Open Access English
    Authors:
    Pire, B.; Szymanowski, L.; Wagner, J.;
    Publisher: HAL CCSD
    Project: EC | HADRONPHYSICS3 (283286)

    Timelike Compton scattering (TCS) i.e. the exclusive photoproduction of a lepton pair with large invariant mass nicely complements the already successful experimental study of deeply virtual Compton scattering (DVCS). The same Generalized Parton Distributions enter both...

  • publication . Other literature type . Article . Preprint . Conference object . 2019
    Open Access English
    Authors:
    Alexandr Chumakov; Ana Sofia Nunes; Ondřej Šubrt; Andrzej Rychter; Antonín Květoň; Annika Thiel; Boris Grube; Jan Matousek; Markéta Pešková; Bakur Parsamyan; ...
    Publisher: RWTH Aachen University
    Project: EC | HADRONPHYSICS3 (283286), NSF | A Program of Medium Energ... (1506416)

    The transverse spin asymmetries measured in semi-inclusive leptoproduction of hadrons, when weighted with the hadron transverse momentum $P_T$, allow for the extraction of important transverse-momentum-dependent distribution functions. In particular, the weighted Sivers...

  • publication . Preprint . Article . 2012
    Open Access English
    Authors:
    Cedric Lorce; Barbara Pasquini;
    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...

51 research outcomes, page 1 of 6
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