Talk for PANIC 2014, Hamburg.
Parallel section "Quarks and gluons in HI collisions", 25'+5', right after Petr Chaloupka's J/psi talk.
Introduce the new U+U measurement in light of recently published p+p, d+Au and Au+Au (Tony's and Manuel's paper).

v5 (21 Aug): reply to Frank's comments
v4 (20 Aug): after 2nd round of emails with Zhenyu, title changed - startalks version
v3 (19 Aug): answer to Daniel's and Zhenyu's comments
v2 (13 Aug): version for HF discussion

Final version:
https://drupal.star.bnl.gov/STAR/presentations/panic-2014/robert-vertesi