# Low X workshop

from May 30, 2013 to June 4, 2013 (Asia/Jerusalem)
Rehovot - Eilat
Asia/Jerusalem timezone
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# High Multiplicity pp and pA Collisions, Hydro at its Edge and Stringy Pomeron

Presented by Edward SHURYAK on 31 May 2013 from 11:10 AM to 11:30 AM

## Content

High Multiplicity pp and pA Collisions are a place where the macroscopic description (thermodynamics and hydrodynamics) meets with the microscopic one (pomerons and QCD strings). I discuss what happens with the hydrodynamical predictions as the system size gets smaller: the radial flow is expected to increase, while the elliptic flow decreases, and high harmonics become perhaps too small to be observed. Approaching the problem from the opposite side, using a string-based Pomeron model, we suggest that when the intrinsic temperature of the string grows, it approaches the Hagedorn regime and produces a high entropy string ball, amusingly dual to a certain black hole. Furthermore, when the string temperature narrows on the Hagedorn temperature or $T/T_H-1={\cal O}(1/N_c)$, the stringy ball becomes a sQGP ball with non-negligible pressure and hydrodynamical flow.

## Place

Location: Rehovot - Eilat
Room: Lopatie center

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