Abstract
Transverse mass spectra of protons and deuterons in rapidity windowy=1.9–2.3 are presented for 158 A GeV Pb+Pb and 200 A GeV S+S and S+Pb collisions. The inverse slope parameter increases with system size and with particle mass. In the framework of a coalescence model a radius parameterR G can be extracted. Transverse mass dependence ofR G is consistent with the\({1 \mathord{\left/ {\vphantom {1 {\sqrt {m_T } }}} \right. \kern-\nulldelimiterspace} {\sqrt {m_T } }}\) decrease of the radius parameter as measured by HBT and thus provides an evidence for the radial flow.
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Brookhaven National Laboratory, CERN, Columbia University, Hiroshima University, Los Alamos National Laboratory, Lund University, Nantes University, Niels Bohr Institute, Ohio State University, Texas AM University, SUNY Stony Brook, Zagreb
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Holzer, E.B., NA44 Collaboration. Measuring coalescence radii and flow using identified protons and deuterons from NA44. Czech J Phys 48 (Suppl 1), 63–68 (1998). https://doi.org/10.1007/s10582-998-0008-x
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DOI: https://doi.org/10.1007/s10582-998-0008-x