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Shadowing & quenching two stories in nuclear colliding

Shadowing & quenching two stories in nuclear colliding. Weitian Deng High Energy Physics Group, Shandong University. Prelusion. Energy dependence of the total cross section Particle production in high energy hadron collisions two-component model. Prelusion. Prelusion.

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Shadowing & quenching two stories in nuclear colliding

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  1. Shadowing & quenchingtwo stories in nuclear colliding Weitian Deng High Energy Physics Group, Shandong University

  2. Prelusion • Energy dependence of the total cross section • Particle production in high energy hadron collisions two-component model

  3. Prelusion

  4. Prelusion

  5. The shadowing legend nucl-th/0110075

  6. The shadowing legend

  7. The shadowing legend Free proton PDFs: CTEQ, MRST, GRV,… Nuclear PDFs: 1. HKN, HKM (Hirai, Kumano, Nagai, Miyama) [hep-ph/0103208,hep-ph/0404093] 2. nDS (de Florian, Sassot) [hep-ph/0311227] 3. EKS98 (Eskola, Kolhinen, Ruuskanen, Salgado) [hep-ph/9802350,hep-ph/9807297] - 1st global analysis for nPDFs - very good fits to nuclear DIS & DY data obtained

  8. The data used DIS: l+A SLAC-E-139 NMC 95, 95re, 96 E665 Drell-Yan in p+A E772 E866 #datapoints = 514

  9. HEP-PH /9807297

  10. HEP-PH /9807297

  11. The shadowing legend Shadowing dependence on Impact-parameter b Transverse momentum cut-off dependence on b

  12. The shadowing legend Nucl-ex/0201005

  13. Final state? Initial state? Pedestal&flow subtracted The quenching melodrama

  14. Nuclear Modification Factor: nucleon-nucleon cross section <Nbinary>/sinelp+p If R = 1 here, nothing new going on The quenching melodrama

  15. The quenching melodrama

  16. The quenching melodrama 200 GeV |h| < 0.5 62 GeV |h| < 0.5 62 GeV 0.5 < |h| < 0.9

  17. The quenching melodrama 62 GeV |h| < 0.5 62 GeV 0.5 < |h| < 0.9 200 GeV |h| < 0.5

  18. Final state? The quenching melodrama • Final state interactions responsible for “jet quenching” instead of initial states. hadronization shower Splitting function

  19. The quenching melodrama Corrected Splitting Function

  20. The quenching melodrama

  21. The quenching melodrama

  22. The quenching melodrama

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