https://doi.org/10.1051/epjconf/201817116007
ϕ Meson Spin Alignment and the Azimuthal Angle Dependence of Λ (Λ) Polarization in Au+Au collisions at RHIC
1
1Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
2
Brookhaven National Laboratory, Upton, NY 11973, USA
* e-mail: tubiao@mails.ccnu.edu.cn
Published online: 2 February 2018
Initial large global angular momentum in non-central relativistic heavy-ion collisions can produce strong vorticity, and through the spin-orbit coupling, causes the spin of particles to align with the system’s global angular momentum. We present the azimuthal angle dependent (relative to the reaction plane) polarization for Λ and Λ in mid-central Au+Au collisions at 
= 200 GeV. We also present the ϕ meson spin alignment parameter, ρ00 in Au+Au collisions at 
= 19.6, 27, 39, 62.4 and 200 GeV. The implications of the results are discussed.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
