Eur. Phys. J. C (2012) 72: 1873
https://doi.org/10.1140/epjc/s10052-012-1873-9

Regular Article - Theoretical Physics

Bulk viscosity and energy-momentum correlations in high energy hadron collisions

Departamento de Física Teórica I, Universidad Complutense, 28040, Madrid, Spain

^* e-mail: fllanes@fis.ucm.es

Received: 24 January 2011
Revised: 17 June 2011
Published online: 18 February 2012

Abstract

We show how the measurement of appropriately constructed particle-energy/momentum correlations allows access to the bulk viscosity of strongly interacting hadron matter in heavy-ion collisions. This measurement can be performed by the LHC and RHIC experiments in events with high-particle multiplicity, following up on existing estimates of the shear viscosity based on elliptic flow.