Abstract
Both the transverse size and entropy density per area in central pA collisions is smaller than in central AA, and yet the radial flow is stronger. We propose an explanation to this puzzle. Using a weak attraction between strings through the σ-meson exchange, fitted to the lattice data, we find collective implosion of the "spaghetti" multi-string state. Collectivization of the sigma field of the strings is the QCD analog of the black hole formation occurring in holographic models.
| Original language | English |
|---|---|
| Pages (from-to) | 899-903 |
| Number of pages | 5 |
| Journal | Nuclear Physics, Section A |
| Volume | 931 |
| DOIs | |
| State | Published - Nov 1 2014 |
Keywords
- QCD strings
- QGP
- Radial flow
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