50,767 research outputs found
Strange attractors in periodically-kicked degenerate Hopf bifurcations
We prove that spiral sinks (stable foci of vector fields) can be transformed
into strange attractors exhibiting sustained, observable chaos if subjected to
periodic pulsatile forcing. We show that this phenomenon occurs in the context
of periodically-kicked degenerate supercritical Hopf bifurcations. The results
and their proofs make use of a new multi-parameter version of the theory of
rank one maps developed by Wang and Young.Comment: 16 page
Open Heavy Flavor Production in p+p, d+Au and Au+Au Collisions at GeV
PHENIX results for open charm production from semi-lepton decay in p+p, d+Au
and Au+Au collisions in a wide rapidity ranges at GeV are
presented. Keywords: Relativistic Heavy-ion Collision, Open Charm production,
Nuclear Medium Effect PACS: 25.75.-q, 25.75 Dw, 13.20.G
- …