351 research outputs found
Polarized Deeply Inelastic Scattering (DIS) Structure Functions for Nucleons and Nuclei
We extract parton distribution functions (PDFs) and structure functions from
recent experimental data of polarized lepton-DIS on nucleons at next-to-leading
order (NLO) Quantum Chromodynamics. We apply the Jacobi polynomial method to
the DGLAP evolution as this is numerically efficient. Having determined the
polarized proton and neutron spin structure, we extend this analysis to
describe 3He and 3H polarized structure functions, as well as various sum
rules. We compare our results with other analyses from the literature.Comment: LaTeX, 12 pages, 11 figures, 6 tables. Update to match published
versio
The ring imaging Cherenkov detector for the BRAHMS experiment at RHIC
A ring imaging Cherenkov counter, to be read out by four 100-channel PMTs, is
a key element of the BRAHMS experiment. We report here the most recent results
obtained tested at the BNL AGS using several radiator gases, including the
heavy fluorocarbon C4F10. Ring radii were measured for different particles
(pions, muons, and electrons) for momenta ranging from 2 to 12 GeV/c employing
pure C4F10 as radiator.Comment: 3 pages 3 figure
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