String-Parton Model Description of Relativistic Heavy-Ion Collisions

摘要: Various models have been developed to address the ordinary hadronic physics that occurs in relativistic heavy-ion collisions. These include string-based fragmentation such as LUND model1, and its extensions FRITIOF2, which assume excited hadrons behave a chain of color dipoles move like one-dimensional strings. Interactions are introduced via multiple small momentum exchanges between two overlapping Other nondynamical dual-parton model3, strings formed by soft gluon exchange valence partons colliding hadrons. The quark-gluon string model4 (QGSM), also based on dual parton model, has study collisions, includes rescattering. above fact constructions space, evolution is carried out this space. They sometimes referred longitudinal phase space models. Any coordinate quantities these may come from transformations coordinates configuration Relativistic quantum molecular dynamics (RQMD) calculations performed collision phenomena5. This approach combines resonance formation decay light states, (LUND model) for very heavy resonances. RQMD follows full space-time uses states description.