Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2007-09-16
Physics
Nuclear Physics
Nuclear Experiment
13 pages, 15 figures
Scientific paper
Two-proton and two-deuteron correlations have been studied in the target fragmentation region of central Pb+Pb collisions at 158 A GeV. Protons and deuterons were measured with the Plastic Ball spectrometer of the WA98 experiment at the CERN SPS. The results of one-dimensional and multi-dimensional analyses using both the Bertsch-Pratt and Yano-Koonin-Podgoretsky parameterizations of the two-particle correlation functions are presented. The proton source exhibits a volume emission, while the deuteron source, with small outward radius, appears opaque. Both proton and deuteron sources have cross-terms R_{ol}^2 and longitudinal velocities beta consistent with zero, indicating a boost-invariant expansion. The invariant radius parameter R follows an approximate A/sqrt{m} scaling while the longitudinal and transverse radii, R_{L} and R_{T}, scale approximately as A/sqrt{m_{T}} with A ~ 3 fm GeV^{1/2} in both cases.
Aggarwal Madan M.
WA98 Collaboration
No associations
LandOfFree
Source radii at target rapidity from two-proton and two-deuteron correlations in central Pb+Pb collisions at 158 A GeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Source radii at target rapidity from two-proton and two-deuteron correlations in central Pb+Pb collisions at 158 A GeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Source radii at target rapidity from two-proton and two-deuteron correlations in central Pb+Pb collisions at 158 A GeV will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-478039