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- Georg Wolschin, Minoru Biyajima, Takuya Mizoguchi, Naomichi Suzuki
- 2006

The evolution of charged-particle production in collisions of heavy ions at relativistic energies is investigated as function of centrality in a nonequilibrium-statistical framework. Precise agreement with recent d + Au and Au + Au data at √ s N N = 200 GeV is found in a Relativistic Diffusion Model with three sources for particle production. Only the… (More)

- Minoru Biyajima, Masaru Ide, Masahiro Kaneyama, Takuya Mizoguchi, Naomichi Suzuki, N. Suzuki
- 2003

To explain η-distributions at RHIC energies we consider the Ornstein-Uhlenbeck process. To account for hadrons produced in the central region, we assume existence of third source located there (y ≈ 0) in addition to two sources located at the beam and target rapidities (±ymax = ± ln [ √ sNN /mN ]). This results in better χ 2 /n.d.f. than those for only two… (More)

Newly reported normalized cumulant moments of charged particles in e + e − collisions by the SLD collaboration are analyzed by the truncated modified negative binomial distribution (MNBD) and the negative binomial distribution (NBD). Calculated result by the MNBD describes the oscillatory behavior of the data much better than that by the NBD. Normalized… (More)

Oscillatory behavior of cumulant moments obtained from the experimental data in pp collisions and ¯ pp collisions are analyzed by the modified negative binomial distribution (MNBD) and the negative binomial distribution (NBD). Both distributions well describe the cumulant moments obtained from the data. This fact shows sharp contrast to the result in e + e… (More)

- N. Suzuki, M. Biyajima
- 2000

Fractional derivative in time variable is introduced to the Fokker-Planck equation corresponding to a population growth problem. The solution of it, the KNO scaling function, is transformed into the generating function for the multiplicity distribution. Formulas of the factorial moment and the H j moment are derived from the generating function, which… (More)

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