Abstract
TheP ⊥ distribution of hadrons from deep-inelastic ep collisions of the H1 experiment determines for the hadrons in the final state, a temperature 277±14 MeV≫220 MeV of the critical temperature predicted by QCD, suggesting the formation of quark-gluon plasma (QGP). From their forward to backward ratio, it is found an excess of hadrons arising from the deconfinement of quarks inside the proton.
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H1 Collaboration: T. Ahmed et al.: Phys. Lett. B298 (1993) 469
A. de Roeck: Invited talk at Int. Europhysics Conf. on High Energy Physics, Marseilles, 1993, DESY-94-005
j. Dainton: Talk at the XVI Int. Symp. on Lepton-Photon Interaction, Cornell University, 1993, RAL 94-012
See, v.g.: F. Karsh: Nucl. Phys. A (Proc. Suppl.) 15 (1990) 157
T.F. Hoang: Z. Phys. C59 (1993) 303
ibid.T.F. Hoang: Z. Phys. C.62 (1994) 343
ibid.T.F. Hoang: Z. Phys. C57 (1993) 566
E. Widden: Phys. Rev. D30 (1984) 272
L.D. Landau: Izv. Akad. Nauk. SSSR. Fiz. 17 (1951) 51
The initial temperature of π's from the electron fragmentation may be estimated fromT=261 MeV of\(Z^0 (91) \to h\bar h[3b]\) by the Stefan's law:T 0=261×(148/91)1/4≈333 MeV. The temperature ofp+p→π+−+··· at\(\sqrt s = 148\) GeV is estimated to be ∼159 MeV using a power law dependence ofT on\(\sqrt s = [3a]\)
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Hoang, T.F. Hadron production by ep collisions at HERA. Z. Phys. C - Particles and Fields 64, 91–94 (1994). https://doi.org/10.1007/BF01557239
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DOI: https://doi.org/10.1007/BF01557239