Speaker
Prof.
Sean Gavin
(Physics Department, Wayne State University)
Description
Correlations born before the onset of hydrodynamic flow can leave observable traces on the final state particles. Measurement of these correlations can yield important information on the isotropization and thermalization process. Starting with Israel-Stewart hydrodynamics and Boltzmann-like kinetic theory in the presence of dynamic Langevin noise, we derive a new partial differential equations for two-particle correlation functions [1,2].
To illustrate how these equations can be used, we study the effect of thermalization on long range correlations. Specifically, at early times we characterize the degree of thermalization in terms of the average probability S that a parton suffers no interactions. We show quite generally that fluctuations of transverse momentum, multiplicity and related quantities scale differently with S, in a manner dictated by the conservation laws. We then illustrate how to measure the degree of thermalization in pp and pA collisions.
[1] S. Gavin, G. Moschelli, C. Zin, Phys. Rev. C 94, 024921 (2016).
[2] S. Gavin, G. Moschelli, C. Zin, arXiv:1612.07856 [nucl-th].
Author
Prof.
Sean Gavin
(Physics Department, Wayne State University)
