Pion-Kaon Correlations in Central Au+Au Collisions at √s_NN=130 GeV

Author Info

STAR Collaboration
T.D. Gutierrez, University of California, DavisFollow

Recommended Citation

Published in Physical Review Letters, Volume 91, Issue 26, December 31, 2003, pages 262301-1-262301-6.

STAR is composed of 63 institutions from 13 countries, with a total of 611 collaborators. A variety of personnel participate in the collaboration, including students, university faculty and staff, national laboratory staff, and engineers.

For more information on the STAR Collaboration, visit https://www.star.bnl.gov

The definitive version is available at https://doi.org/10.1103/PhysRevLett.91.262302.

Abstract

Pion-kaon correlation functions are constructed from central Au+Au STAR data taken at √s_NN=130  GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.

Disciplines

Physics

Copyright

2003 American Physical Society.

Number of Pages

6

Publisher statement

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society.

NOTE: At the time of publication, the author Thomas Gutierrez was not yet affiliated with Cal Poly.