Conveners
WG6+WG7 Joint Session: Spin Physics + Future experiments
- Yann Bedfer (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))
- Ernst Sichtermann (Lawrence Berkeley National Laboratory)
- Alice Valkarova (Charles University (CZ))
- Alexei Prokudin (Jefferson Lab)
- Barbara Pasquini (University of Pavia)
- Abhay Deshpande (Stony Brook University)
Justin Stevens
(Massachusetts Institute of Technology)
01/05/2014, 08:30
WG6+WG7 Joint Session
Oral presentation
A new tagged photon beam facility is being constructed in experimental Hall-D at Jefferson Lab as a part of the 12 GeV upgrade program. The 9 GeV linearly-polarized photon beam will be produced via coherent Bremsstrahlung using the CEBAF electron beam, incident on a diamond radiator. The GlueX experiment in Hall-D will use this photon beam to search for and study the pattern of gluonic...
Eva-Maria Kabuss
(Johannes Gutenberg-Universitat)
01/05/2014, 08:55
WG6+WG7 Joint Session
Oral presentation
The high energy polarised muon beam available at CERN with
the option of using positive or negative muons with opposite
polarisation gives COMPASS an excellent possibility to study
generalised parton distributions via deeply virtual Compton
scattering and hard exclusive meson production.
In a first step we will use an unpolarised proton target to measure
the $x_{Bj}$-dependence of the...
Thomas Burton
01/05/2014, 09:15
WG6+WG7 Joint Session
Oral presentation
The proposed Electron-Ion Collider (EIC) aims to provide us with our clearest understanding yet of nucleon spin structure. Among its novel capabilities is the ability to study charged-current (CC) deep-inelastic scattering (DIS) on longitudinally polarised nucleons. This will provide invaluable and complimentary information to conventional, electromagnetic DIS, by probing a different set of...
Bernd Surrow
(Temple University)
01/05/2014, 09:40
WG6+WG7 Joint Session
Oral presentation
One of the main objectives of the high-energy spin physics program at RHIC at BNL is the precise determination of
the polarized gluon distribution function, $\Delta g(x)$.
Polarized $\vec{p}+\vec{p}$ collisions at
$\sqrt{s}=200\,$GeV and at $\sqrt{s}=500\,$GeV at RHIC provide a unique way to probe the
proton spin
structure using very well established processes in high-energy
physics,...
Pawel Nadel-Turonski
(Jefferson Lab)
01/05/2014, 10:05
WG6+WG7 Joint Session
Oral presentation
Unpolarized and polarized deep inelastic lepton scattering off light nuclei
(deuterium, He-3) with detection of spectator nucleon(s) at EIC offers
unique opportunities to address fundamental open questions of QCD such
as the spin structure of the neutron, the effect of nuclear binding on
quark and gluon distributions, and the onset of coherent nuclear effects
in high-energy...
Jakub Wagner
(Institute for Nuclear Studies)
01/05/2014, 11:00
WG6+WG7 Joint Session
Oral presentation
We study the polarization asymmetry in timelike virtual Compton scattering with a linearly
polarized photon beam, in the generalized Bjorken scaling region and in the medium energy range which will be studied intensely at JLab12 experiments. We define new observables and show how they should help to access the polarized quark and gluon generalized parton distributions.
Prof.
Ken Barish
(UC Riverside)
01/05/2014, 11:20
WG6+WG7 Joint Session
Oral presentation
In the past decade, the data from transverse spin p+p from RHIC and polarized DIS experiments have enabled enormous progress in our understanding of the transverse spin dynamics in the proton. PHENIX Collaboration has carried out a very active program of transverse spin measurements including transverse spin asymmetries (TSSAs) in the production of light/heavy quark, of leading neutrons at...
Catarina Quintans
(LIP-Lisbon)
01/05/2014, 11:40
WG6+WG7 Joint Session
Oral presentation
The COMPASS experiment at CERN will start in the coming months its Drell-Yan
(DY) physics program. This is the first transversely polarized target Drell-Yan
measurement ever performed. Using a high intensity pion beam at 190 GeV/c
momentum, the collected statistics over one year of data-taking will provide
new insight to the transverse momentum dependent (TMD) parton...
Dr
Salvatore Fazio
(Brookhaven National Laboratory)
01/05/2014, 12:00
WG6+WG7 Joint Session
Oral presentation
The Sivers function $ f^\perp_{1T} $ describes the correlation of parton transverse momentum with the transverse spin of the nucleon. There is evidence of a quark Sivers effect in semi-inclusive DIS (SIDIS) measurements.
In SIDIS, the quark Sivers function is associated with a final state effect from the gluon exchange between the struck quark and the target nucleon remnants. On the other...
