Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV
High Energy Physics - Experiment
2013-05-29 v2 Nuclear Experiment
Abstract
Results are presented on event-by-event fluctuations in transverse momentum of charged particles, produced at forward rapidities in p+p, C+C, Si+Si and Pb+Pb collisions at 158 AGeV. Three different characteristics are discussed: the average transverse momentum of the event, the Phi_pT fluctuation measure and two-particle transverse momentum correlations. In the kinematic region explored, the dynamical fluctuations are found to be small. However, a significant system size dependence of Phi_pT is observed, with the largest value measured in peripheral Pb+Pb interactions. The data are compared with predictions of several models.
Keywords
Cite
@article{arxiv.hep-ex/0311009,
title = {Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV},
author = {The NA49 Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0311009},
year = {2013}
}
Comments
will be submitted to Phys. Rev. C