Quick search
Advanced search in
Field to searchTerm
Add rule
Filters (3 )
Download Results
10 research outcomes, page 1 of 1
  • publication . Preprint . 2012
    Open Access English
    Authors:
    Hwang, Dae Sung; Mueller, Dieter;
    Project: EC | HADRONPHYSICS3 (283286)

    We suggest a classification scheme for parton distribution models, clarify the geometrical origin of unintegrated parton distribution relations, which were observed in various models, present new model relations, and provide for a so-called "spherical" model the analogo...

  • publication . Preprint . Article . Other literature type . 2015
    Open Access English
    Authors:
    Philipp Jörg; Ana Sofia Nunes; Jan Friedrich; Márcia Quaresma; Aram Kotzinian; Andrzej Rychter; Boris Grube; Jan Matousek; Bakur Parsamyan; Alexander Olshevskiy; ...
    Project: FCT | CERN/FP/109323/2009 (109323), FCT | CERN/FP/116376/2010 (116376), EC | HADRONPHYSICS3 (283286), FCT | CERN/FP/123600/2011 (123600)

    Measurements of the Collins and Sivers asymmetries for charged pions and charged and neutral kaons produced in semi-inclusive deep-inelastic scattering of high energy muons off transversely polarised protons are presented. The results were obtained using all the availab...

  • publication . Article . 2009
    Open Access
    Authors:
    A.V. Arhangel'skii;
    Publisher: Elsevier BV
    Project: WT | Molecular and Cellular Bi... (100150), EC | HADRONPHYSICS2 (227431), EC | HADRONPHYSICS3 (283286), RCUK | Theory and Phenomenology ... (ST/G000557/1), EC | INVISIBLES (289442), EC | DUALITIESHEPTH (306260), EC | GATIS (317089), NSERC

    Abstract In this article we establish some connections between properties of a topological space X and the structure of convergence at G δ -points in an arbitrary remainder of this space X. A special attention is given to the case when X is a topological group.

  • publication . Article . Other literature type . Preprint . 2015
    Open Access English
    Authors:
    Philipp Jörg; Ana Sofia Nunes; Jan Friedrich; Márcia Quaresma; Aram Kotzinian; Michael Pesek; Andrzej Rychter; Boris Grube; Jan Matousek; Wen-Chen Chang; ...
    Publisher: Uppsala universitet, Kärnfysik
    Project: EC | HADRONPHYSICS3 (283286), FCT | CERN/FP/109323/2009 (109323), FCT | CERN/FP/116376/2010 (116376), FCT | CERN/FP/123600/2011 (123600)

    In the fragmentation of a transversely polarized quark several left-right asymmetries are possible for the hadrons in the jet. When only one unpolarized hadron is selected, it exhibits an azimuthal modulation known as Collins effect. When a pair of oppositely charged ha...

  • publication . Article . Preprint . Other literature type . 2015
    Open Access English
    Authors:
    Aleksandra Wrońska; Andreas Wirzba; James Ritman; Zara Bagdasarian; Nils Hempelmann; Kirill Grigoryev; Sergey Dymov; Alexander Nass; Prof. Dr. Andreas Lehrach; Christian Weidemann; ...
    Project: EC | HADRONPHYSICS3 (283286)

    A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, the spin tune - defined as the number of spin precessions per turn - is given by $\nu_s = \gamma G$ (gamma is the Lorentz factor, $G$ the magnetic anomaly). For 970 MeV/c ...

  • 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 . 2017
    Open Access English
    Authors:
    Aleksandra Wrońska; Alexander Silenko; Ralf Gebel; Artem Saleev; Zara Bagdasarian; Kirill Grigoryev; Sergey Dymov; Maria Żurek; Prof. Dr. Andreas Lehrach; Frank Rathmann; ...
    Publisher: APS
    Project: EC | srEDM (694340), EC | HADRONPHYSICS3 (283286)

    This Letter reports the successful use of feedback from a spin polarization measurement to the revolution frequency of a 0.97 GeV= c bunched and polarized deuteron beam in the Cooler Synchrotron (COSY) storage ring in order to control both the precession rate (approxima...

  • publication . Preprint . Article . Other literature type . 2015
    Open Access English
    Authors:
    Philipp Jörg; Ana Sofia Nunes; Jan Friedrich; Márcia Quaresma; Aram Kotzinian; Andrzej Rychter; Boris Grube; Jan Matousek; Bakur Parsamyan; Adam Szabelski; ...
    Project: FCT | CERN/FP/116376/2010 (116376), FCT | CERN/FP/109323/2009 (109323), EC | HADRONPHYSICS3 (283286), FCT | CERN/FP/123600/2011 (123600)

    A search for the exclusive production of the $Z_c^{\pm}(3900)$ hadron by virtual photons has been performed in the channel $Z_c^{\pm}(3900)\rightarrow J/\psi \pi^{\pm}$. The data cover the range from 7 GeV to 19 GeV in the centre-of-mass energy of the photon-nucleon sys...

  • publication . Article . Other literature type . Preprint . 2018
    Open Access English
    Authors:
    Hempelmann, Nils; Hejny, V.; Pretz, Jörg Johannes; Soltner, H.; Augustyniak, W.; Bagdasarian, Z.; Bai, M.; Barion, L.; Berz, M.; Chekmenev, S.; ...
    Project: EC | srEDM (694340), EC | HADRONPHYSICS3 (283286)

    This paper reports the first simultaneous measurement of the horizontal and vertical components of the polarization vector in a storage ring under the influence of a radio frequency (rf) solenoid. The experiments were performed at the Cooler Synchrotron COSY in Julich u...

  • publication . Other literature type . Article . 2020
    Open Access
    Authors:
    Adolph, C.; Aghasyan, M.; Akhunzyanov, R.; Alexeev, M. G.; Alexeev, G. D.; Amoroso, A.; Andrieux, V.; Anfimov, N. V.; Anosov, V.; Augsten, K.; ...
    Publisher: Springer Science and Business Media LLC
    Project: EC | HADRONPHYSICS3 (283286)

    The original version of this article unfortunately contained a mistake.

10 research outcomes, page 1 of 1
Last index information