A quark-gluon plasma search in anti p --p at radical s = 1. 8 TeV

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The search by E-735 for QGP evidence in centrally produced particles in {bar p}p collisions has revealed several interesting results in the behavior with variation of dN{sub c}/d{eta} in the measured interval from 2--18. In {l angle}P{sub t}{r angle} we see a decrease in slope for all particles near dN{sub c}/d{eta} {approx equal} 9 corresponding to a Bjorken initial energy density of 2.2 GeV/{sub fm}{sup 3}. Above dN{sub c}/d{eta} = 10, the increase of {l angle}P{sub t}{r angle} is small except for {bar p}'s where the data suggest a 25% increase in the region 13--18. In the particle ratios, normalizing … continued below

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Turkot, F. October 8, 1990.

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The search by E-735 for QGP evidence in centrally produced particles in {bar p}p collisions has revealed several interesting results in the behavior with variation of dN{sub c}/d{eta} in the measured interval from 2--18. In {l angle}P{sub t}{r angle} we see a decrease in slope for all particles near dN{sub c}/d{eta} {approx equal} 9 corresponding to a Bjorken initial energy density of 2.2 GeV/{sub fm}{sup 3}. Above dN{sub c}/d{eta} = 10, the increase of {l angle}P{sub t}{r angle} is small except for {bar p}'s where the data suggest a 25% increase in the region 13--18. In the particle ratios, normalizing to {pi}'s, they (K, {bar p}, {Lambda}{sup 0}, {gamma}) are all independent of dN{sub c}/d{eta} within errors of {plus minus} 15% except for K{sup {plus minus}}/{pi}{sup {plus minus}} which increases by 30% in the interval 7 to 18. Based on the E-735 data analyzed to data, one can conclude that QGP is not manifest in {bar p}p collisions at 1.8 TeV. Nonetheless, there are the two effects mentioned above, which can be explored with much improved sensitivity using the high-statistics data of the '88--'89 run.

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7 pages

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NTIS, PC A02/MF A01; OSTI; INIS; GPO Dep.

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  • 8. international conference on ultrarelativistic nucleus-nucleus collisions: Quark Matter '90, Menton (France), 7-11 May 1990

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  • Other: DE91001784
  • Report No.: FNAL/C-90/205-E
  • Report No.: CONF-900570--14
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 6476797
  • Archival Resource Key: ark:/67531/metadc1204441

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  • October 8, 1990

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Turkot, F. A quark-gluon plasma search in anti p --p at radical s = 1. 8 TeV, article, October 8, 1990; Batavia, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1204441/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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