Abstract
Anisotropic flow of kaons and antikaons is studied in heavy-ion collisions at CERN SPS and BNL RHIC energies within the microscopic quark–gluon string model. In the midrapidity range the directed flow of kaons v1 differs considerably from that of antikaons at SPS energy (Elab=160 AGeV), while at RHIC energy (s=130 AGeV) the excitation functions of both, kaon and antikaon, flows coincide within the statistical error bars. The change is attributed to formation of dense meson-dominated matter at RHIC, where the differences in interaction cross sections of kaons and antikaons become unimportant. The time evolution of the kaon anisotropic flow is also investigated. The elliptic flow of these hadrons is found to develop at midrapidity at times 3⩽t⩽10 fm/c, which is much larger than the nuclear passing time tpass=0.12 fm/c. As a function of transverse momentum the elliptic flow increases almost linearly with rising pt. It stops to rise at pt⩾1.5 GeV/c reaching the saturation value v2K(pt)≈10%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
