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String Theory meets Field Theory in Heavy Ion Collisions

This presentation by W. A. Horowitz from The Ohio State University on October 23, 2009, explores the intersection of string theory and field theory in the context of heavy ion collisions. Acknowledging contributions from significant names in the field, it delves into high-pT data from the PHENIX collaboration and discusses various related studies and theoretical models, including pQCD and AdS/CFT approaches. The analysis highlights challenges and insights regarding particle emission, kinematic cutoffs, and the implications for current pQCD models.

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String Theory meets Field Theory in Heavy Ion Collisions

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  1. String Theory meets Field Theoryin Heavy Ion Collisions W. A. Horowitz The Ohio State University October 23, 2009 With many thanks to Brian Cole, MiklosGyulassy, Ulrich Heinz, and Yuri Kovchegov

  2. Confronting High-pT Data NPE p0 Y. Akibafor the PHENIX collaboration, hep-ex/0510008 Wicks, WAH, Gyulassy, Djordjevic, NPA784 (2007) WHDG C. Vale, QM09 Plenary (analysis by R. Wei) PHENIX, Phys. Rev. Lett. 98, 172301 (2007)

  3. pQCD Quantification? PHENIX, PRC77:064907,2008 Bass et al., Phys.Rev.C79:024901,2009

  4. Collinear Approximation • Assume small angle emission • kT << w • 2 defs. of x: • Affects ALL current pQCD models • Enforce via kinematiccutoffs kT w = k0 WAH and B Cole, 0910.1823

  5. Huge Sensitivity WAH and B Cole, 0910.1823

  6. AdS/CFT and Heavy Quarks J Friess, et al., PRD75:106003, 2007 WAH, PhD Thesis WAH, M. Gyulassy, PLB666 (2008)

  7. AdS/CFT PHENIX 0-5% p0 S SGubser, QM09 WAH, in preparation

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