12-18 August 2012
US/Eastern timezone

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Microcanonical Tsallis statistics in jet fragmentation at LHC and LEP

16 Aug 2012, 16:00
2h
Regency 1/3 and Ambassador ()

Regency 1/3 and Ambassador

Poster New theoretical developments Poster Session Reception

Speaker

Karoly Uermoessy (Hungarian Academy of Sciences (HU))

Description

For the description of hadronic spectra in high-energy nuclear reactions, it is essential to understand the process of hadronisation. However, hadron creation is still an unsettled matter from the theoretical point of view. In the talk, I show that hadron distributions inside jets (fragmentation functions) created in s^1/2 = 7 TeV (LHC) proton-proton [1] and also in high-energy electron-positron [2] collisions can be described by a statistical jet-fragmentation model. This model combines microcanonical statistics and super-statistics induced by multiplicity fluctuations. The resulting scale dependence of the parameters of the model turns out to be similar to what was observed in electron-positron annihilations in Ref. [2]. [1] Phys. Lett. B 701: 111-116, 2011; arXiv:1101.3023 [2] Submitted to PLB, arXiv:1204.1508

Primary author

Karoly Uermoessy (Hungarian Academy of Sciences (HU))

Co-authors

Dr Gergely Gábor Barnaföldi (Wigner RCP of the HAS) Prof. Tamás Sándor Biro (Wigner RCP of the HAS)

Presentation Materials

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