Holographic Pomeron and Entropy
Nuclear Theory
2012-12-03 v2 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
In dipole-dipole scattering at large rapidity \chi={\rm ln}(s/s_0), the induced instanton on the string worldsheet carries entropy S_k=2(\alpha_{Pk}-1)\chi with \alpha_{Pk}-1 the pomeron intercept for a dipole source of N-ality k. This stringy entropy is neither coherent nor thermal. We argue that it is released promptly over a time t_R\approx (b / \chi)^3 / (4 \alpha') with \alpha'/2 the pomeron slope and b the impact parameter. This stringy entropy may explain the 3/2 jump in the total charged multiplicities at about 10 participants reported over a wide range of collider energies by PHOBOS. We predict the charged multiplicities in pp, pA and AA collisions at LHC.
Cite
@article{arxiv.1211.3077,
title = {Holographic Pomeron and Entropy},
author = {Alexander Stoffers and Ismail Zahed},
journal= {arXiv preprint arXiv:1211.3077},
year = {2012}
}