The Exact String Black-Hole behind the hadronic Rindler horizon?

TL;DR

This paper proposes that the universal hadronic freeze-out temperature observed in high-energy collisions can be modeled by a string black-hole in gravity-gauge theory, linking hadronic phenomena to gravitational analogs.

Contribution

It identifies the exact string black-hole as the gravitational dual that reproduces the energy dependence of the freeze-out temperature in hadronic collisions.

Findings

The string black-hole fits the experimental T_f(\sqrt{s}) data.

The Witten black-hole explains the constant T_f at high energies.

An effective model describes how baryon density screens the string tension.

Abstract

The recently suggested interpretation of the universal hadronic freeze-out temperature T_f ~ 170 Mev - found for all high energy scattering processes that produce hadrons: e+ e-, p p, p anti-p, pi p, etc. and N N' (heavy-ion collisions) - as a Unruh temperature triggers here the search for the gravitational black-hole that in its near-horizon approximation better simulates this hadronic phenomenon. To identify such a black-hole we begin our gravity-gauge theory phenomenologies matching by asking the question: which black-hole behind that Rindler horizon could reproduce the experimental behavior of T_f (\sqrt{s}) in N N', where \sqrt{s} is the collision energy. Provided certain natural assumptions hold, we show that the exact string black-hole turns out to be the best candidate (as it fits the available data on T_f (\sqrt{s})) and that its limiting case, the Witten black-hole, is the unique candidate to explain the constant T_f for all elementary scattering processes at large energy. We also are able to propose an effective description of the screening of the hadronic string tension sigma(mu_b) due to the baryon density effects on T_f.