A Microscopic Picture of Strangeness Production at the SPS
Stephen E. Vance
Abstract
The microscopic origin of the strangeness enhancements observed in PbPb collisions at the SPS is studied by testing the effects of three mechanisms. First, the junction processes found in the HIJING/BBbar event generator are reviewed showing that they can account for only part of the observed hyperon enhancements. Second, the efficient final state chemical changing processes (e.g. Lambda + K -> Xi + pi) are included by adding the General Cascade Program (GCP) to HIJING/BBbar. While these processes are shown to further enhance multistrange baryon production, HIJING/BBbar+GCP is still unable to fully describe either the large hyperon yields or the increasing K+/pi+ ratio. Finally, the addition of transient field fluctuations or ropes to HIJING/BBbar+GCP is shown to be needed to account for the large hyperon yields and for the behavior of the K+/pi+ ratio.
Create a lesson
Related papers
Density-driven α-particle clustering in neutron-rich oxygen isotopes
M. Davies, E. Yüksel, J. -P. Ebran et al.
Multi-phonon wobbling excitations as a probe for dynamical quasiparticle alignment
R. Budaca, A. I. Budaca
Interacting Boson System at Finite Temperatures: The treatment of the lattice QCD results
D. Anchishkin, V. Gnatovskyy, D. Zhuravel et al.
Spurious center-of-mass mode as an S-matrix pole within the Jost-random-phase approximation
Kazuhito Mizuyama
Quantum computing for high energy nuclear physics
João Barata
Elliptic and triangular flow responses in O+O and Ne+Ne collisions from hydrodynamics and kinetic theory
Victor E. Ambrus, Giuliano Giacalone, Clemens Werthmann et al.