出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The elliptic flow for Lambda hyperons and K0
s mesons was measured by the NA49 experiment in
semicentral Pb+Pb collisions at 158A GeV. The standard method of correlating particles with an
event plane has been used. Measurements of v2 near mid-rapidity are reported as a function of
centrality, rapidity and transverse momentum. Elliptic flow of L and K0
s particles increases both
with the impact parameter and with the transverse momentum. It is compared with v2 for pions
and protons as well as with various model predictions. The NA49 results are compared with data
from NA45/CERES and STAR experiments.
