Rapidity and centrality dependence of proton and antiproton production from Au-197+Au-197 collisions at root S-NN=130 GeV
MetadataShow full item record
We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from Au-197+Au-197 collisions at roots(NN)=130 GeV as measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Our results are from the rapidity and transverse momentum range of parallel toyparallel to<0.5 and 0.35<p(t)<1.00 GeV/c. For both protons and antiprotons, transverse mass distributions become more convex from peripheral to central collisions demonstrating characteristics of collective expansion. The measured rapidity distributions and the mean transverse momenta versus rapidity are flat within y<0.5. Comparisons of our data with results from model calculations indicate that in order to obtain a consistent picture of the proton (antiproton) yields and transverse mass distributions the possibility of prehadronic collective expansion may have to be taken into account.
DescriptionJournals published by the American Physical Society can be found at http://publish.aps.org/
DepartmentPhysics and Astronomy
Showing items related by title, author, creator and subject.
Performance-Based Reliability Analysis and Code Calibration for RC Column Subject to Vehicle Collision Sharma, Hrishikesh (2012-07-16)Infrastructure and transportation facilities have increased rapidly over the years. The progress has been accompanied by an increasing number of vehicle collisions with structures. This type of collision might lead to ...
Search for the Higgs Boson Decaying to Two Tau Leptons in Proton-Antiproton Collisions at a Center of Mass Energy of 1.96 TeV Elagin, Andrey (2012-02-14)A search for the Higgs boson decaying to tau tau using 7.8 fb^-1 of pp collisions at 1.96 TeV collected with CDF II detector is presented. The search is sensitive to four production mechanisms of the Higgs boson: ggH, WH, ...
Zhang, Ben-Wei; Ko, Che Ming; Liu, Wei. (American Physical Society, 2008)Charm production from the quark-gluon plasma created in the midrapidity of central heavy ion collisions at the Large Hadron Collider (LHC) is studied in the next-to-leading order in QCD. Using a schematic longitudinally ...