Article ID Journal Published Year Pages File Type
8187506 Physics Letters B 2013 7 Pages PDF
Abstract
We show that recently measured transverse momentum spectra of identified particles exhibit geometrical scaling (GS) in scaling variable τm˜T=(m˜T/Q0)2(m˜T/W)λ where m˜T=m2+pT2−m. We explore consequences of GS and show that both mid rapidity multiplicity and mean transverse momenta grow as powers of scattering energy. Furthermore, assuming Tsallis-like parametrization of the spectra we calculate the coefficients of this growth. We also show that Tsallis temperature is related to the average saturation scale.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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