Energy flow and stopping in relativistic heavy-ion collisions at E sub lab / A =14. 6 GeV
Collisions of {sup 28}Si+Al, Cu, Pb at {ital E}{sub lab}/{ital A}=14.6 GeV were studied in a calorimetry-based experiment at the BNL Alternating Gradient Synchrotron. Transverse-energy production was measured for pseudorapidities {minus}0.5{lt}{eta}{lt}0.8. Correlations with the spectra and multipli...
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Veröffentlicht in: | Physical review letters 1990-03, Vol.64:11 |
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Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Collisions of {sup 28}Si+Al, Cu, Pb at {ital E}{sub lab}/{ital A}=14.6 GeV were studied in a calorimetry-based experiment at the BNL Alternating Gradient Synchrotron. Transverse-energy production was measured for pseudorapidities {minus}0.5{lt}{eta}{lt}0.8. Correlations with the spectra and multiplicity of neutrons and protons emitted into a forward 0.8{degree} cone demonstrate quantitatively the large amount of nuclear stopping observed in these reactions. Calculations in hadronic-fireball or nucleon-nucleon based models underpredict the measured transverse-energy production for Si+Pb and indicate the need to include rescattering of secondaries and /or contributions from target fragmentation. |
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ISSN: | 0031-9007 1079-7114 |
DOI: | 10.1103/PhysRevLett.64.1219 |