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SPIN PHYISICS at FAIR

SPIN PHYISICS at FAIR. F. Bradamante J-PARC WORKSHOP, KEK November 30, 2005. Generalized Parton Distributions. Sincrotrone a doppio anello per • accelerare p a 28 GeV per targhetta di produzione • accelerare antip da 3 GeV per trasferirli a HERS

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SPIN PHYISICS at FAIR

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  1. SPIN PHYISICS at FAIR F. Bradamante J-PARC WORKSHOP, KEK November 30, 2005

  2. Generalized Parton Distributions J-PARC Workshop

  3. Sincrotronea doppio anello per• accelerare p a 28 GeV per targhetta di produzione • accelerare antip da 3 GeV per trasferirli a HERS • con SIS300 (anti)p a piu’ di 40 GeV FAIR SIS18booster per protoni - 1 GeV 50 MeVProton Linac High Energy Sorage Ring Collector Ring NERSraffreddamento stocastico antip J-PARC Workshop

  4. Physics with Polarized Antiprotons at GSI ASSIA LoI • SIS300 @ GSI: ppbar > 40 GeV • Physics objectives: • Drell-Yan di-lepton production  transversity • spin observables in hadron production • electromagnetic form factors PAX LoI J-PARC Workshop

  5. cinematica Drell-Yan Di-Lepton Production Drell-Yan: the asimmetries depend only on the PDF’s in SIDIS they are convoluted with spin dependent fragmentation functions (*) antiprotons: only valence quark contribute in proton-proton sea quarks also (*) only SIDIS allows for flavour separation J-PARC Workshop

  6. Drell-Yan Asymmetries Beam and target polarized J-PARC Workshop

  7. Spin Physics at FAIR • ASSIA Collaboration + Novosibirsk (Y. Shatunov et al.) • investigations of possible machine options to have polarized proton - antiproton collisions at sufficiently high energies • symmetric collider (15 GeV + 15 GeV) • asymmetric collider (3.5 GeV + 3.5 GeV) • feasibility study of part of the program at PANDA • simulations studies for the Drell-Yan process • PAX • apparatus studies • studies on the polarizability of the antiprotons: proposed measurements at COSY and at AD work in progress towards a Spin Experiment with AntiProtons (SEAP) in parallelo a PANDA J-PARC Workshop

  8. SEAP IP J-PARC Workshop

  9. J-PARC Workshop

  10. Transverse Structure Functions (Drell-Yan) Phase space  = const: hyperbolae xF = const: diagonal 15 GeV/c PANDA (GSI) 30 GeV/c 40 GeV/c ASSIA (GSI) COMPASS J-PARC Workshop

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