Hadron Production in Heavy Ion Collisions

Abstract

We review hadron production in heavy ion collisions with emphasis on pion and kaon production at energies below 2 AGeV and on partonic collectivity at RHIC energies.Comment: 31 pages, 26 figures, accepted for publication in Landolt-Boernstein Volume 1-23

Net-baryon number variance and kurtosis within nonequilibrium chiral fluid dynamics

“…The baryon number is extracted directly from the fluid dynamical density. As a conserved quantity, it will fluctuate only slightly when including a freeze-out and hadronic interactions in the final state [48]. We use two different methods to determine N B : first, within a fixed volume in the center of the collision, with an extension of 10 fm in x-direction and 1 fm each in y-and z-direction.…”

Challenges in QCD matter physics --The scientific programme of the Compressed Baryonic Matter experiment at FAIR

“…The collective flow of hadrons is driven by the pressure gradient created in the early fireball and pro-vides information on the dense phase of the collision (for an overview, see [33,34] and references therein). Flow effects can be characterized by the azimuthal distribution of the emitted particles dN/dφ = C (1 + v 1 cos(φ) + v 2 cos(2φ) + ...), where φ is the azimuthal angle relative to the reaction plane, and the coefficients v 1 and v 2 represent the strengths of the directed (in-plane) and the elliptic flow, respectively.…”