420 likes | 519 Views
Review of Tsallis distribution applied to RHIC data?. NO! Theory about why is it applicable: yes!. T.S.Bíró, G.Purcsel and K.Ürmössy MTA KFKI RMKI Budapest. Talk given at Zimányi Winter School, 2008. nov. 25-29. Budapest, Hungary. Transverse momentum spectra.
E N D
Review of Tsallis distribution applied to RHIC data? NO! Theory about why is it applicable: yes! T.S.Bíró, G.Purcsel and K.Ürmössy MTA KFKI RMKI Budapest Talk given at Zimányi Winter School, 2008. nov. 25-29. Budapest, Hungary
What all it can… • dN/dy rapidity distribution: reduced phase space (q < 1) • Multiplicity distribution: negative binomial • Temperature – average energy fluctuation • Superstatistics • Coalescence scaling for (q-1) Theory: thermodynamics with power-law tailed energy distributions
Power-law tailed distributions and abstract composition rules T.S.Bíró, MTA KFKI RMKI Budapest Extensivity and non-extensivity Composition rules in the large-N limit Entropy formulas and distributions Relativistic kinetic energy composition Talk given at Zimanyi Winter School, 2008. nov. 25-29. Budapest, Hungary
Extensivity andnon-extensivity T.S.Biro, arxiv:0809.4675 Europhysics Letters 2008 T.S.Biro, G.Purcsel, Phys.Lett.A 372, 1174, 2008 T.S.Biro, K.Urmossy, G.G.Barnafoldi, J.Phys.G 35:044012, 2008
Nonextensive as composite sums Pl. x_i=i, L(x)=exp(ax)
Composition, large-N limit n = t N
Deformed logarithm Deformed exponential
Canonical distribution and detailed balance solution in generalized Boltzmann equation:
Angle averaged Q dependent composition rule for the relativistic kinetic energies
Formal logarithm and asymptotic rule for the relativistic kinetic energies
Summary • Non-extensive thermodynamics requires non-additive composition rules • Large N limit: rules are associative and symmetric, formal logarithm L • Entropy formulas, equilibrium distributions, H-theorem based on L • Relativistic kinematics Tsallis-Pareto