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XX International Workshop on Deep-Inelastic Scattering and Related Subjects

Mar 26 – 30, 2012
University of Bonn
Europe/Berlin timezone

Conference secretariat

Session

Combined: Diffraction and vector mesons/spin physics

Mar 28, 2012, 1:30 PM
Wolfgang Paul Lecture Hall (University of Bonn)

Wolfgang Paul Lecture Hall

University of Bonn

Kreuzbergweg 28, 53115 Bonn, Germany,

Presentation materials

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  1. 98. Imaging partons using exclusive scattering processes
    Markus Diehl (DESY)
    3/28/12, 1:30 PM
    Diffraction and vector mesons/spin physics
    The spatial distribution of partons in the proton or a nucleus can be probed in suitable exclusive scattering processes. I review the theoretical foundation and the physics interest of this idea, and I report on recent performance estimates for parton imaging in the proton at an Electron-Ion collider.
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  2. 154. GPD analysis of hard scattering processes : progress report
    Hervé MOUTARDE (I)
    3/28/12, 1:55 PM
    Diffraction and vector mesons/spin physics
    We present some recent results on the analysis of hard scattering processes in the framework of Generalized Parton Distributions. In particular we compute DVCS observables on unpolarized targets with the Kroll - Goloskokov model (suited to DVMP analysis). We also discuss NLO contributions to DVCS and TCS processes for various kinematic settings (collider and fixed target experiments).
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  3. 18. Spin structure of the "forward" nucleon charge-exchange reaction n + p ---> p + n and the deuteron charge-exchange breakup
    Dr Valery Lyuboshitz (Joint Institute for Nuclear Research, Dubna, Russia)
    3/28/12, 2:15 PM
    Diffraction and vector mesons/spin physics
    The structure of the nucleon charge-exchange process n + p --> p + n is investigated basing on the isotopic invariance of the nucleon-nucleon scattering. Using the operator of permutation of the spin projections of the neutron and proton, the connection between the spin matrices, describing the amplitude of the nucleon charge-exchange process at zero angle and the amplitude of...
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  4. 4. Overview of Deeply Virtual Compton Scattering at HERMES
    Morgan Murray (U)
    3/28/12, 2:35 PM
    Diffraction and vector mesons/spin physics
    Deeply Virtual Compton Scattering represents the best experimental channel through which to understand Generalised Parton Distributions. The HERMES experiment measured the most diverse set of DVCS results of any experiment; this talk discusses the most recent sets of DVCS results released by HERMES and the unique experimental conditions found at HERMES that facilitated the measurements....
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  5. 355. Vector Meson Production and DVCS at CLAS and CLAS12
    Dr Daria Sokhan (in2p3)
    3/28/12, 2:55 PM
    Diffraction and vector mesons/spin physics
    Generalised Parton Distributions (GPDs) offer an insight into the three-dimensional structure of the nucleon and its internal dynamics, relating the transverse position of quarks to their longitudinal momentum. Two effective means of accessing GPDs are Deeply Virtual Compton Scattering (DVCS) and Meson Production (DVMP), in which a high energy electron scatters from a single quark in the...
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  6. 127. Hard Exclusive Meson Production at COMPASS and Future DVCS Measurements at COMPASS-II
    Heiner Wollny (CEA - Centre d'Etudes de Saclay (FR))
    3/28/12, 3:15 PM
    Diffraction and vector mesons/spin physics
    New results for the transverse target spin azimuthal asymmetry $A_{UT}^{\sin(\phi-\phi_S})$ for hard exclusive $\rho^0$-meson production on a transversely polarised NH$_3$ target will be presented. The measurement was performed in 2007 and 2010 with the COMPASS detector using the 160\,GeV/$c$ muon beam of the SPS at CERN. The asymmetry is sensitive to the nucleon helicity-flip generalised...
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