https://doi.org/10.1140/epja/i2016-16030-5
Regular Article - Theoretical Physics
Radial flow in non-extensive thermodynamics and study of particle spectra at LHC in the limit of small (q - 1)
1
Discipline of Physics, School of Basic Sciences, Indian Institute of Technology Indore, Khandwa Road, 452020, Simrol, India
2
UCT-CERN Research Centre and Department of Physics, University of Cape Town, 7701, Rondebosch, South Africa
* e-mail: Raghunath.Sahoo@cern.ch
Received:
9
November
2015
Accepted:
9
January
2016
Published online:
19
February
2016
We expand the Tsallis distribution in a Taylor series of powers of (q - 1), where q is the Tsallis parameter, assuming q is very close to 1. This helps in studying the degree of deviation of transverse momentum spectra and other thermodynamic quantities from a thermalized Boltzmann distribution. After checking thermodynamic consistency, we provide analytical results for the Tsallis distribution in the presence of collective flow up to the first order of (q - 1). The formulae are compared with the experimental data.
© SIF, Springer-Verlag Berlin Heidelberg, 2016