Semi-Inclusive Rapidity Distributions from a Longitudinal Phase Space : Particles and Fields

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概要

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• Single particle rapidity distributions in events with fixed multiplicities are calculated using a longitudinal phase space model with a constant transverse momentum. Two case (1) pion-pion collisions with no leading pions (or e^+-e^- annihilation into pions) and (2) nucleon-nucleon collisions with leading nucleons are considered and numerical results are given for the c.m. total energy W=540 GeV. In Case (1), sharp peaks appear at the ends of the available rapidity space when the multiplicity n is less than 13 while the peaks disappear and a flat plateau develops when 15≲n≲60. The plateau changes into a smooth bump as n increases further. In Case (2), both peaks at low n and a plateau at medium n are smeared out considerably by the leading particle effect, and a smooth bump dominates for almost all range of n. Prominent dips observed experimentally in the pseudorapidity distributions for low n are not reproduced in the calculated rapidity distributions.

• 理論物理学刊行会の論文
• 1988-03-25

著者

• TSUKAMOTO Tatsuo

  Computer Center, Tohoku University

• Tsukamoto Tatsuo

  Computer Center Tohoku University

• TAKAGI Fujio

  Department of Physics, Tohoku University

• Takagi Fujio

  Department Of Basic Sciences Ishinomaki Senshu University

• Tsukamoto T

  National Lab. High Energy Physics(kek) Ibaraki Jpn

• TSUKAMOTO Toshifumi

  National Laboratory for High Energy Physics (KEK)

• TSUKAMOTO Tatsuo

  Department of Liberal Arts, Tohoku Gakuin University

• TAKAGI Fujio

  Physics Department, Tohoku University

• Tsukamoto Tatsuo

  National Laboratory for High Energy Physics (KEK)

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