Tsallis Statistical Interpretation of Transverse Momentum Spectra in High-Energy pA Collisions

الملخص EN

In Tsallis statistics, we investigate charged pion and proton production for pCu and pPb interactions at 3, 8, and 15 GeV/c.

Two versions of Tsallis distribution are implemented in a multisource thermal model.

A comparison with experimental data of the HARP-CDP group shows that they both can reproduce the transverse momentum spectra, but the improved form gives a better description.

It is also found that the difference between q and q′ is small when the temperature T = T′ for the same incident momentum and angular interval, and the value of q is greater than q′ in most cases.