Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, 2007 Transversity Network Project Enzo De Sanctis INFN-LNF 1

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Towards HadronPhysics2: “ STUDY OF STRONGLY INTERACTING MATTER” Coordinator: INFN Project Coordinator: Carlo GuaraldoINFN-LNF Steering Committee: – Quark-gluon plasma Barbara Erazmus * CNRS/IN2P3 Ludovico RiccatiINFN Torino Reinhard SimonGSI – Electromagnetic probes Mauro Anselmino INFN&U. Torino Michel Gar ç on * CEA-Saclay G ü nther RosnerU. Glasgow – Hadronic probes Paul Hoyer * U. Helsinki Toird JohanssonU. Uppsala Helmut KochU. Bochum * Nominated on June 1 st 2007 New website exclusively for HadronPhysics2:

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, July 4 th, 2007: First call from the SC (deadline: 15 Sept. 2007) Sept , 2007 First plenary Meeting LNF) Oct-Nov. Selection of the LoI by the SC (contacts with the proponents, requests of merging, writing new versions) Dec Jan. 2008: writing of the proposal by the SC (NO final plenary meeting or possibly on the last week of Jan.) Feb. 15, 2008: Delivery of Hadron-Physics-2 Proposal to the EU Duration of the contract: ≤48 months (to make it possible matching with FP8, which will start in 2014, funds in 2015) Third call for I3 (by invitation only for successful projects of the First Call) at the end of 2011 beginning 2012, for 24 months Contracts covering 2013 & Second call at the beginning of 2010 Budget: 277 M€ (210 M€ for FP6). Average approved project 10 M€ (exceptionally 15 M€). Cuts at most of the order of 20%. HadronPhysics2: Timeline

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Networking Projects: 11 preliminary EoI (including Transverse Nucleon Structure) Joint Research Activities: 20 preliminary EoI Transnational Access: 11 preliminary EoI SC aims at:5 Networking Projects 15 JRAs 10 TARIs Preliminary Expressions of interest (May 25, 2007) for HadronPhysics2

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Outline Description of the Scientific Case and of Objectives Participants and their specific role Implementation plan of the activity (including a table with Deliverables and Milestones) Expected Outcome (benefit to participating Research Infrastructures and relevant Scientific Community) Budget Request Networking Project “TMD-Net” Networking Project “TMD-Net” Mapping the unknown Transverse Structure of the Nucleon Key points: continuity (showing that a successful project has a continuation represents a positive signal N7-Transversity successful and generated hints for new ideas). strengthen the European Research Area.

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, The knowledge of correlations of transverse momentum of partons and spin is crucial for the understanding of the spin structure of the nucleon in terms of the quark and gluon degrees of freedom of QCD. Recent progress in understanding the role of partonic initial and final state interactions lead to introduction of gauge-invariant transverse momentum dependent (TMD) parton distributions, generalizing the standard parton distributions to describe also their distributions in transverse momentum. TMDs are recognized as an important part of representation of the nucleon in terms of Wigner distributions containing the most general one-body information on proton structure, and are complementary to GPDs describing spatial distributions of partons. The information on spin-orbit correlations, together with independent measurements related to the spin and orbital angular momentum of the quarks will help construct a more complete picture about the spin structure of the nucleon going beyond the simple collinear partonic representation. A large body of theoretical work on TMDs in the last decade, and new high performance facilities and high luminosity particle accelerators nowadays allow one to explore such intriguing though complicated objects experimentally. TMD-Net: Scientific case

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, For decades the partonic structure of the nucleon was almost entirely discussed in terms of unpolarized and polarized forward parton densities, which merely depend on the longitudinal momentum of the respective parton. A much more comprehensive picture of the nucleon structure can be obtained by considering the transverse momentum dependent parton distributions (TMDs) entering the description of various semi- inclusive reactions. A large body of theoretical work on these types of parton correlators appeared during the last decade, and also new high performance detectors and high luminosity particle accelerators nowadays allow one to explore such intriguing though complicated objects experimentally. Novelty in the continuity

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Theory: sound base developed for description of single-spin asymmetries which involve TMD distribution and fragmentation functions. Prove of universatility of such functions appearing in SIDIS, Drell-Yan and e + e - processes. Experiment: key measuremens performed with transverely polarized targets at HERMES and COMPASS. transversity and Collins fragmentation functions are non zero Sivers function is non zero (role of orbital angular momentum of parton!) Theory+Experiment: first extraction of transversity, Collins and Sivers functions from data and model calculations. First global analysis: simultaneous fit of all available data. Successfully completed goals of N7

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Participating Institutions from 7 Countries BelgiumUniversity of Gent Bulgaria INRE, Sofia GermanyRuh-Universitaet, Bochum University of Erlangen, Erlangen ItalyINFN-LNF, Frascati INFN & Università di Pavia, Pavia INFN & Università di Ferrara, Ferrara INFN & Università di Torino, Dip. Fisica Generale, Torino INFN & Università di Torino, Dip. Fisica Teorica, Torino INFN & Università di Trieste, Trieste NetherlandVrije Universiteit, Amsterdam PortugalUniversidade de Coimbra, Coimbra SpainUniversitat de Valencia, Valencia UK Imperial College, London TMD-Net: Participants To ensure most efficient use of common finances grouping in six Teams Experiment I (Frascati and Ferrara) (Genova ? Roma-2?)E. De Sanctis (Frascati) Experiment II (Erlangen and Gent) (Zeuthen? Warsaw?)K. Rith (Erlangen) Experiment III (Trieste and Torino Exp.)F. Bradamante (Trieste) Theory I (Bochum and Coimbra), K. Goeke (Bochum) Theory II (Amsterdam, London, Sofia, and Valencia) P. Mulders (Amsterdam) Theory III (Torino Th. and Pavia)M. Anselmino (Torino)

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Interplay of diverse and complementary measurements (HERMES, COMPASS, JLab, FAIR, …) -Precision study of several measurable asymmetries -Full x-dependence -Q 2 evolution Theoretical studies of different scattering processes -Guide experiments -Provide theoretical interpretation -Modeling of new experimental quantities Mapping the Transverse structure of the nucleon: a complex task TMDs δq(x,Q 2 ) D-Y eN μN e+e-e+e- The collaboration between experimentalists of various experiments and between theorists and experimentalists will play a central role for extracting detailed information about the δq and other TMDs using the available and upcoming data and planning measurements at next generation of lepton- nucleon scattering ELIC, eRHIC) and with polarized p-pbar collisions at the future FAIR facility.

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, HERMES/COMPASS/FAIR are based in Europe. Analysis in Europe of JLab data. Most theory-experts on δq- and TMDs-related problems are working in European Universities. The synergy from the envisaged combination of experimental and theoretical efforts will further strengthen the leading role of European scientists in this sector of Hadron Physics. TMD-Net: European Interest

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Coordination and rationalization of data collection and analysis capabilities [HERMES, COMPASS, JLab and new facilities] (MC event production, study of systematics, tests of analysis algorithms). Precise determination of transversity and Sivers distribution functions. Extraction of the flavour-separated distribution functions and their first moments. Improve the knowledge of the strange quark polarization. Studies of all TMDs: check on the universality and factorization of the TMDs; check of the sign reversal of the T-odd TMDs. Experimental proof of principle of the spin-filtering technique for antiproton. Definition of optimum working parameters of a dedicated antiproton ring at GSI. Proposals for the next generation of lepton-nucleon and proton-antiproton scattering experiments. Two Workshops. Ph-D Thesis, Internal Reports and papers on referred Journals. Objectives & Deliverables

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Budget Requests 6 post-doc years (50 k€/year) 360 k€ 2 Workshops 20 k€ Travels (16.5 k€ for each Team)99 k€ Coordinator1 k€ Total 480 k€ N7-Net 12 post-doc years (50 k€/year) 600 k€ 2 Workshops 30 k€ Travels (30 k€ for each Team)180 k€ Coordinator10 k€ Total 820 k€ TMS-Net Very Preliminary

Enzo De Sanctis: UE-FP7-TMD network ECT*-Trento, June 15, Summing up Fix Name of the network Circulation of First draft of the proposal by June 30, with: -Objectives, -Milestones, -Participating Institutions and their specific role, - FTE per Institutions, -Composition of Teams and their Contact persons, -First estimate of the financial request.