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An idea to broaden the EIC Science program

An idea to broaden the EIC Science program. E.C. Aschenauer & M. Stratmann. arXiv : 1212.1701 & 1108.1713. Can we understand hadronization At an EIC?. q(x 1 ). Hard Scattering Process. X. g(x 2 ). Physics deliverable in the EIC-WP:

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An idea to broaden the EIC Science program

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  1. An idea to broaden the EIC Science program E.C. Aschenauer & M. Stratmann arXiv: 1212.1701 & 1108.1713

  2. Can we understand hadronization At an EIC? q(x1) Hard Scattering Process X g(x2) EIC User Meeting 2014 • Physics deliverable in the EIC-WP: Quark hadronization: By measuring pion and D0 meson production in both electron+proton and electron+nucleus collisions, the EIC would provide the first measurement of the quark mass dependence of the hadronization along with the response of nuclear matter to a fast moving quark. But what do we really know about hadronization? individual vs. collective phenomena

  3. Can we understand hadronization At an EIC? EIC User Meeting 2014 • EIC unique machine to study hadronization • DIS is sensitive to favored and unfavoredFFs • can still improve significantly collinear FFs • access to wide kinematic range, x, Q2, pt, z • detector design foresee wide h coverage (-5 to 5) with PID • can study correlations between current and target FF region • can we see a pt (kt), z ordering as predicted by string models • how to access kt  talk by M. Baker • Many interesting spin dependent phenomena in FF • IFF, Collins FF, which manifest themselves in hadron correlations and azimuthal distributions • how do they translate from the current to the target fragmentation region

  4. Can we understand hadronizationAt an EIC? -5<eta<5, all final states will put strong constrains on theoretical models IS vs. FS effects DpmjeteA Dpmjetep Pythiaep EIC User Meeting 2014 • epand eA particle correlations for rare high multiplicity events • can we see effects as v2n like in pp and p(d)A

  5. Can we understand hadronization At an EIC? adding more general questions on hadronization to the EIC physics portfolio will broaden the possibilities to gain new insights in QCD EIC User Meeting 2014 • the most challenging goal: search for exotics • go from ep/eA to gp/gA collider • follow HALL-D idea: spin-1 beam and polarisation can make a difference • follow ILC g-g collider idea  produce g-beam through Compton back scattering • EIC will give access to the charm sector and high mass states • test universality of states, see Belle & LHCb for Z(4430)

  6. EM interaction Photon Sensitive to electric charge2 Insensitive to color charge Strong interaction Gluon Sensitive to color charge Insensitive to flavor Weak interaction Weak Boson Sensitive to weak charge ~ flavor Insensitive to color Probing Nucleon Structure through QCD Only having high precision data from all 3 probes will give the opportunity to understand the full dimension of QCD and separate interaction dependent effects from true universal features of nuclear matter Varenna, July 2011

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