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Studying re-scattering effect in heavy-ion collision through K* production.
- Source :
-
International Journal of Modern Physics E: Nuclear Physics . May2015, Vol. 24 Issue 5, p-1. 9p. - Publication Year :
- 2015
-
Abstract
- We have studied the K* production within a multi-phase transport model (AMPT) for + collisions at to understand the hadronic re-scattering effect on the measured yields of the resonance. The hadronic re-scattering of the K* decay daughter particles (π and K) will alter their momentum distribution thereby making it difficult to reconstruct the K* signal through the invariant mass method. An increased hadronic re-scattering effect thus leads to a decrease in the reconstructed yield of K* in the heavy-ion collisions. Through this simulation study, we argue that a decrease in K*/K ratio with the increase in collision centrality necessarily reflects the hadronic re-scattering effect. Since the re-scattering occurs in the hadronic phase and K* has a lifetime of 4 fm/c, we present a toy model-based discussion on using measured K*/K to put a lower limit on the hadronic phase lifetime in high energy nuclear collisions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02183013
- Volume :
- 24
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- International Journal of Modern Physics E: Nuclear Physics
- Publication Type :
- Academic Journal
- Accession number :
- 108310402
- Full Text :
- https://doi.org/10.1142/S021830131550041X