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2012 | 10 | 5 | 1131-1136
Tytuł artykułu

System size dependence of the non-monotonous pion freeze-out volume excitation function

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Hanburry-Brown-Twiss (HBT) correlation functions and radii of negatively charged pions from C+C, Si+Si, Cu+Cu, and In+In at lower RHIC/SPS energies are calculated with the UrQMD transport model and the CRAB analyzing program. We find a minimum in the excitation function of the pion freeze-out volume at low transverse momenta and around E lab ∼ 20–30AGeV which can be related to the change from initial string emission to bulk emission from the created resonance matter. For small systems, we predict a local minimum in the excitation function of the HBT (freeze-out) volume which is explained by the competition of two mechanisms of the particle production, namely resonance decays and string formation/fragmentation.
Wydawca

Czasopismo
Rocznik
Tom
10
Numer
5
Strony
1131-1136
Opis fizyczny
Daty
wydano
2012-10-01
online
2012-11-21
Twórcy
autor
  • School of Science, Huzhou Teachers College, Huzhou, 313000, People’s Republic of China, liqf@hutc.zj.cn
autor
  • School of Science, Huzhou Teachers College, Huzhou, 313000, People’s Republic of China
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-012-0093-0
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