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Diffraction 2014

10–15 Sept 2014
Primošten (Croatia)
Europe/Lisbon timezone

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Session

Spin Physics (I)

13 Sept 2014, 08:20
Primošten (Croatia)

Primošten (Croatia)

<a href="http://www.hotelzora-adriatiq.com/en/hotel-zora" target="blank" color="white">(HOTEL ZORA)</a>

Conveners

Spin Physics (I)

  • J. Soffer

Presentation materials

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  1. 128. Proton spin in leading order of the covariant approach
    Dr Petr Zavada (Institute of Physics ASCR, Prague)
    13/09/2014, 08:20
    Spin Physics
    In the framework of the covariant quark-parton model we study the relativistic interplay between the quark spins and orbital angular momenta, which collectively contribute to the proton spin. The spin structure functions g1 and g2, corresponding to the many-quark state J =1/2 are shown to satisfy constraints and relations, which fit well the available experimental data including the data on...
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  2. 138. Spin Physics Program in Jefferson Lab's Hall C
    Dr Oscar A. Rondon (Institute for Nuclear and Particle Physics - Univ. of Virginia)
    13/09/2014, 08:45
    Spin Physics
    The nucleon spin structure has been studied at Jefferson Lab's Hall C in experiments RSS (E01-006) and SANE (E07-003), which measured double spin asymmetries using the U. of Virginia solid polarized target and CEBAF's 6 GeV polarized electrons. The proton longitudinal spin structure g1 and transverse structure g2 have been investigated at kinematics extending from the elastic point to DIS, for...
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  3. 187. Jefferson Lab Spin Structure Measurements at Low Q2
    Prof. Karl Slifer (UNH)
    13/09/2014, 09:10
    Spin Physics
    The latest generation of electron scattering experiments at Jefferson Lab endeavor to completely describe the nucleon in terms of the fundamental de- grees of freedom of Quantum Chromodynamics. A critical component of this program is to understand how the spin of the nucleon arises from its sub- structure, and what role spin plays in the structure of more complex nuclear systems. The...
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  4. 147. How large is the gluon polarization in the statistical parton distributions approach?
    Prof. Jacques Soffer (Temple University, Philadelphia, PA, USA)
    13/09/2014, 09:35
    Spin Physics
    We review the theoretical foundations of the quantum statistical approach to parton distributions and we show that by using some recent experimental results from Deep Inelastic Scattering, we are able to improve the description of the data by means of a new determination of the parton distributions. We will see that a large gluon polarization emerges, giving a significant contribution the the...
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  5. 115. The spin physics results from COMPASS
    Dr Oleg Kouznetsov (JINR)
    13/09/2014, 09:55
    Spin Physics
    Latest COMPASS results on quark and gluon helicities are discussed, as well as results on transverse spin and transverse momentum effects in semi-inclusive deeply inelastic scattering of 160 GeV/c muons off proton and deuteron targets.
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