Coordinatori
Spin Physics (I)
- J. Soffer
Dr.
Petr Zavada
(Institute of Physics ASCR, Prague)
13/09/14, 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...
Dr.
Oscar A. Rondon
(Institute for Nuclear and Particle Physics - Univ. of Virginia)
13/09/14, 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...
Prof.
Karl Slifer
(UNH)
13/09/14, 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...
Prof.
Jacques Soffer
(Temple University, Philadelphia, PA, USA)
13/09/14, 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...
