Speaker
Dr
AKINORI OHSAWA
(Institute for Cosmic Ray Research, University of Tokyo.)
Description
We describe the rapidity density distribution and the transverse momentum (p_{t}) distribution in multiple particle production, assuming a simple mechanism. It is an assumed mechanism that the newly produced particles are emitted isotropically from several emitting centers which are distributed on the rapidity axis in CMS. The energy distribution of the emitted particles is an exponential type in the rest frame of respective emitting centers. The distribution of the emitting centers is uniform between -y_{0} and y_{0} (y_{0}=ln(sqrt{s}/M)-lna_{2}, a_{2} an adjustable parameter).
We can obtain the rapidity density distribution analytically, which can be transformed easily to the pseudo-rapidity density distribution and x-distribution.
The rapidity density distribution and the p_{T} distribution by the present formulation describes well those of the experiments at various energies by adjusting values of the parameters (five in total).
We show how well the experimental data at sqrt{s}=22.4, 546, and 1800 GeV
are described by the present formulation.
| If this is a contributed presentation, please indicate preference for Oral (O) or Poster (P): | O |
|---|
Primary author
Dr
AKINORI OHSAWA
(Institute for Cosmic Ray Research, University of Tokyo.)
Co-authors
Prof.
Edison H. Shibuya
(Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas)
Prof.
Masanobu Tamada
(School of Science and Engineering, Kinki University.)