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)
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Justin Stevens (Massachusetts Institute of Technology)01/05/2014, 08:30WG6+WG7 Joint SessionOral presentationA 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...Go to contribution page
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Eva-Maria Kabuss (Johannes Gutenberg-Universitat)01/05/2014, 08:55WG6+WG7 Joint SessionOral presentationThe 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...Go to contribution page
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Thomas Burton01/05/2014, 09:15WG6+WG7 Joint SessionOral presentationThe 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...Go to contribution page
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Bernd Surrow (Temple University)01/05/2014, 09:40WG6+WG7 Joint SessionOral presentationOne 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,...Go to contribution page
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Pawel Nadel-Turonski (Jefferson Lab)01/05/2014, 10:05WG6+WG7 Joint SessionOral presentationUnpolarized 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...Go to contribution page
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Jakub Wagner (Institute for Nuclear Studies)01/05/2014, 11:00WG6+WG7 Joint SessionOral presentationWe 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.Go to contribution page
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Prof. Ken Barish (UC Riverside)01/05/2014, 11:20WG6+WG7 Joint SessionOral presentationIn 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...Go to contribution page
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Catarina Quintans (LIP-Lisbon)01/05/2014, 11:40WG6+WG7 Joint SessionOral presentationThe 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...Go to contribution page
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Dr Salvatore Fazio (Brookhaven National Laboratory)01/05/2014, 12:00WG6+WG7 Joint SessionOral presentationThe 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...Go to contribution page