Transverse momentum and transverse mass distributions of charged hadrons produced in Au--Au collisions at high energies |
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Authors: | Liu Fu-Hu |
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Institution: | Institute of Theoretical Physics, Shanxi University,
Taiyuan
030006, China |
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Abstract: | The transverse momentum distribution and the transverse mass
distribution of charged hadrons produced in nucleus--nucleus
collisions at high energies are described by using a two-cylinder
model. The results calculated by the model are compared and found to
be in agreement with the experimental data of the STAR and E895
Collaborations, measured in Au--Au collisions at the relativistic
heavy ion collider (RHIC) and alternating-gradient synchrotron (AGS)
energies, respectively. In the energy range concerned, the
excitation degree of emission source close to the central axis of
cylinders increases obviously with the collision centrality and
incident energy increasing, but it does not show any obvious change
with the increase of the (pseudo)rapidity in central collisions. The
excitation degree of emission source close to the side-surface of
cylinders does not show any obvious change with the collision
centrality, the (pseudo)rapidity, and the incident energy
increasing. |
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Keywords: | transverse momentum two-cylinder model nucleus--nucleus collisions |
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