2007/06/30 by STAR Collaboration, M. M. Aggarwal, B. I. Abelev +98
Engineering · Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear reactor physics and engineering #Particle physics theoretical and experimental studies #nucl-ex
paper · pdf · doi:10.1103/physrevc.76.064904
published as Phys.Rev.C76:064904,2007 · 11 pages, 7 figures, 3 tables, published in Physical Review C, v2: updated text and figures
openalex publication_date 2007/12/18 · arxiv created 2007/12/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We report the measurement of \ensuremathΛ and \ensuremathΛ yields and inverse slope parameters in d+Au collisions at √sNN=200 GeV at forward and backward rapidities (y=\ifmmode±\else\textpm\fi2.75), using data from the STAR forward time projection chambers. The contributions of different processes to baryon transport and particle production are probed exploiting the inherent asymmetry of the d+Au system. Comparisons to model calculations show that baryon transport on the deuteron side is consistent with multiple collisions of the deuteron nucleons with gold participants. On the gold side, HIJING-based models without a hadronic rescattering phase do not describe the measured particle yields, while models that include target remnants or hadronic rescattering do. The multichain model can provide a good description of the net baryon density in d+Au collisions at energies currently available at the BNL Relativistic Heavy Ion Collider, and the derived parameters of the model agree with those from nuclear collisions at lower energies.