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arXiv · hep-ph/0504076

Transverse momentum distribution with radial flow in relativistic diffusion model

N. Suzuki·M. Biyajima
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Abstract

Large transverse momentum distributions of identified particles observed at RHIC are analyzed by a relativistic stochastic model in the three dimensional (non-Euclidean) rapidity space. A distribution function obtained from the model is Gaussian-like in radial rapidity. It can well describe observed transverse momentum $p_T$ distributions. Estimation of radial flow is made from the analysis of $p_T$ distributions for $\bar{p}$ in Au + Au Collisions. Temperatures are estimated from observed large $p_T$ distributions under the assumption that the distribution function approaches to the Maxwell-Boltzmann distribution in the lower momentum limit. Power-law behavior of large $p_T$ distribution is also derived from the model.

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N. Suzuki, M. Biyajima. 2005-04-11. Transverse momentum distribution with radial flow in relativistic diffusion model. https://doi.org/10.1142/s0218301307005582

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