Publication Type
Journal
Journal Name
Physical Review D
Publication Date
Volume
87
Abstract
Phenomenological Tsallis fits to the CMS, ATLAS, and ALICE transverse
momentum spectra of hadrons for pp collisions at LHC were recently
found to extend over a large range of the fitting transverse
momentum. We investigate whether the few degrees of freedom in the
Tsallis parametrization may arising from the relativistic
parton-parton hard-scattering and related hard processes. The effects
of multiple hard-scattering and parton showering on the power law are
discussed. We find that although the transverse spectra of both
hadrons and jets exhibit power-law behaviour of 1/pT^n at high
pT, the power indices n for hadrons are categorically greater
than those for jets, for which n~4.
