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Prog. Theor. Phys. Vol. 77 No. 2 (1987) pp. 403-418

Monte Carlo Simulation of Multiple Production in Proton-Antiproton Collisions at CERN SPS Collider

Fujio Takagi

Department of Physics, Tohoku University, Sendai 980

(Received September 13, 1986)

Abstract:

We propose a simple model for Monte Carlo simulation of multiple production in hadron-hadron collisions at high energies. The leading particle spectrum, the single particle transverse momentum distribution and the multiplicity distribution for full phase space are taken from experiment as the inputs. The longitudinal momenta of hadrons or clusters in the central component are generated by a random cut procedure. The conservation of energy and longitudinal momentum is imposed rigorously. The model thus makes it possible to stydy the origin of various fluctuations and correlations in the longitudinal phase space independent of how to explain the distribution used as the inputs. A Monte Carlo event generator is constructed usintg this model and it is applied to proton-antiproton collisions at center-of-mass energy √s=540 GeV in order to analyze the data on the so-called minimum bias events measured at CERN SPS collider. Emphasis is laid on how to reproduce the observed charged multiplicity distributions in different intervals of pseudorapidity. It is found that the clustering of ordinary size is sufficient to explain the observed suppression of the fluctuations of the local multiplicity distributions. Single particle inclusive spectra, semi-inclusive ones and forward-backward multiplicity correlations are calculated and compared with experiment.

URL : http://ptp.ipap.jp/link?PTP/77/403/
DOI : 10.1143/PTP.77.403

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Citing Article(s) :

1. Progress of Theoretical Physics Vol. 79 No. 3 (1988) pp. 710-720 :

   Semi-Inclusive Rapidity Distributions from a Longitudinal Phase Space

   Fujio Takagi and Tatsuo Tsukamoto

2. Progress of Theoretical Physics Vol. 88 No. 5 (1992) pp. 967-974 :

   Analysis of Momentum and Multiplicity Distributions for High Energy Multiparticle Production Processes Based on the Thermal Three-Cluster Model-Simulation

   Kiyoshi Kudo, Tomohiro Kiriyama, Tsuyoshi Shimada, Isami Yoneda, Takaaki Hashimoto and Ryoku Nakamura

3. Progress of Theoretical Physics Vol. 94 No. 5 (1995) pp. 837-843 :

   Analysis of Intermittent Phenomena for High Energy Multiparticle Production Processes

   Kiyoshi Kudo, Ryoku Nakamura, Takaaki Hashimoto, Katsuyuki Sugioka, Hiroyuki Matsuda, Tetsuji Morishita, Yoshiteru Tamura and Yuji Yoda

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