Forward Neutral Pion Production in p+p and d+Au Collisions at sqrt(s_NN)=200 GeV
| dc.creator | STAR Collaboration | |
| dc.creator | Adams, J. | |
| dc.date | 2006-02-09 | |
| dc.date | 2006-10-12 | |
| dc.date.accessioned | 2026-07-07T11:28:16Z | |
| dc.date.available | 2026-07-07T11:28:16Z | |
| dc.description | Measurements of the production of forward pi0 mesons from p+p and d+Au collisions at sqrt(s_NN)=200 GeV are reported. The p+p yield generally agrees with next-to-leading order perturbative QCD calculations. The d+Au yield per binary collision is suppressed as eta increases, decreasing to ~30% of the p+p yield at <eta>=4.00, well below shadowing expectations. Exploratory measurements of azimuthal correlations of the forward pi0 with charged hadrons at eta~0 show a recoil peak in p+p that is suppressed in d+Au at low pion energy. These observations are qualitatively consistent with a saturation picture of the low-x gluon structure of heavy nuclei. | |
| dc.description | 6 pages, 4 figures. Minor changes from review process in Phys. Rev. Lett. Plain text tables of data in STAR publications may be found at http://www.star.bnl.gov/central/publications | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0602011 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0602011 | |
| dc.identifier | Phys.Rev.Lett.97:152302,2006 | |
| dc.identifier | doi:10.1103/PhysRevLett.97.152302 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/196386 | |
| dc.subject | Nuclear Experiment | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Forward Neutral Pion Production in p+p and d+Au Collisions at sqrt(s_NN)=200 GeV | |
| dc.type | text |