  Transverse momentum distributions of deuterons and anti-deuterons in Au+Au
collisions at $\sqrt{S_{NN}}$=14.5, 62.4 and 200 GeV with different centrality
are studied in the framework of the multisource thermal model. Transverse
momentum spectra are conformably and approximately described by the Tsallis
distribution. The dependence of parameters (average transverse momenta,
effective temperature and entropy index) on event centrality are obtained. It
is found that the parameters increase with increase of the average number of
particles involved in collisions, which reveals the nuclear stopping degree
increases with collision centrality.
