523 research outputs found
Probing transverse quark polarization in deep-inelastic leptoproduction
The azimuthal dependence of hadrons produced in lepton scattering off a
polarized hadron probes the quark transverse-spin distributions. In the
calculation of the asymmetries, transverse momenta of quarks in the
distribution and fragmentation functions must be incorporated. In addition to
the asymmetry for transversely polarized hadrons, known
as the Collins effect, we find asymmetries for both transversely
and longitudinally polarized hadrons.Comment: 7 pages RevTe
Prospects for spin physics in semi-inclusive processes
I discuss inclusive and semi-inclusive lepton-hadron scattering emphasizing
the importance of polarization in order to study various single or double spin
asymmetries and the importance of particle identification and angular
resolution in the dectection of final state particles to study azimuthal
asymmetries. The observables obtained in this way enable a detailed study of
quark and gluon correlations in hadrons.Comment: 15 pages LaTex, 20 figures using epsf.sty, revised layout, talk
presented at the second ELFE Workshop, 23-27 September 1996, St. Malo, Franc
Agriculture, Food and the TTIP: Possibilities and Pitfalls. CEPS Special Report No. 99/December 2014. TTIP Series No. 3 and Paper No. 1 in the CEPS-CTR project “TTIP in the balance’’
Progress in agriculture and food issues in the TTIP talks will largely be determined by the level
of ambition in the negotiations as a whole. If ambitions are modest, a low-level agreement
could probably be reached that includes some limited commitments on agricultural market
access and food regulations. These could include promises of mutual support in the area of
opening up agricultural markets through the WTO and of further Transatlantic cooperation in
trying to resolve conflicts over food regulations. Bolder ambitions would allow more scope for
tackling the difficult problems, though at the cost of time. It would be unfortunate if the
opportunity were not taken to make some significant progress in removing some longstanding
irritants in the area of agricultural policy and food regulations: this is where the
economic gains are likely to be significant and the spill-overs useful. This paper argues the
case that it is worthwhile making the effort to secure a constructive and imaginative agreement
on agriculture and food regulations in the TTIP. A fairly detailed suggestive list of potential
sub-deals in agro-food, supported by the analysis in the paper, is the most concrete one of a
series of policy conclusion
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