Dissemin is shutting down on January 1st, 2025

Published in

Elsevier, Physics Letters B, 1(685), p. 41-46, 2010

DOI: 10.1016/j.physletb.2010.01.029

Links

Tools

Export citation

Search in Google Scholar

Three-dimensional two-pion source image from Pb+Pb collisions at sNN=17.3 GeV: New constraints for source breakup dynamics

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Green circle
Published version: archiving allowed
Data provided by SHERPA/RoMEO

Abstract

Source imaging methodology is used to provide a three-dimensional two-pion source function for mid-rapidity pion pairs with pT<70 MeV/c in central (0–7%) Pb + Pb collisions at . Prominent non-Gaussian tails are observed in the pion pair transverse momentum (outward) and in the beam (longitudinal) directions. Model calculations reproduce them with the assumption of Bjorken longitudinal boost invariance and transverse flow blast-wave dynamics; they also yield a proper time for breakup and emission duration for the pion source.