CENTRALITY DEFINITION USING MID-RAPIDITY ET DISTRIBUTIONS FROM P+BE TO AU+AU AT AGS ENERGIES.

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Measurements by the E802 Collaboration of the A-dependence and pseudorapidity interval ({delta}{eta}) dependence of mid-rapidity ET distributions in a half-azimuth electromagnetic calorimeter are presented for p+Be, p+Au, O+Cu, Si+Au and Au+Au collisions at the BNL-AGS. The issues addressed are (1) whether the shapes of the upper edges of the ET distributions vary with {delta}{eta} similarly to the variation in shapes of mid-rapidity charged particle distributions and (2) how small a {delta}{eta} interval would still give a meaningful characterization of the ''nuclear geometry'' of a reaction. A new way of plotting ET distributions was found from which the reaction dynamics could ... continued below

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TANNENBAUM,M.J. FOR E802 COLLABORATION May 10, 1999.

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Measurements by the E802 Collaboration of the A-dependence and pseudorapidity interval ({delta}{eta}) dependence of mid-rapidity ET distributions in a half-azimuth electromagnetic calorimeter are presented for p+Be, p+Au, O+Cu, Si+Au and Au+Au collisions at the BNL-AGS. The issues addressed are (1) whether the shapes of the upper edges of the ET distributions vary with {delta}{eta} similarly to the variation in shapes of mid-rapidity charged particle distributions and (2) how small a {delta}{eta} interval would still give a meaningful characterization of the ''nuclear geometry'' of a reaction. A new way of plotting ET distributions was found from which the reaction dynamics could be read directly.

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4 pages

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  • PROCEEDINGS OF THE 14TH INTERNATIONAL CONFERENCE ON ULTRA-RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS, QUARK MATTER 1999, TORINO (IT), 05/10/1999--05/15/1999

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  • Report No.: BNL--66739
  • Report No.: KB020201
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 11463
  • Archival Resource Key: ark:/67531/metadc622424

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  • May 10, 1999

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  • June 16, 2015, 7:43 a.m.

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  • Nov. 9, 2015, 9:34 p.m.

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TANNENBAUM,M.J. FOR E802 COLLABORATION. CENTRALITY DEFINITION USING MID-RAPIDITY ET DISTRIBUTIONS FROM P+BE TO AU+AU AT AGS ENERGIES., article, May 10, 1999; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc622424/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.