scholarly journals Hyperon/meson ratios in rare high-multiplicityppcollisions at energies available at the Large Hadron Collider, and potential signatures for mini-quark-gluon plasma formation

2012 ◽  
Vol 86 (4) ◽  
Author(s):  
V. Topor Pop ◽  
M. Gyulassy ◽  
J. Barrette ◽  
C. Gale ◽  
A. Warburton
Keyword(s):  
Large Hadron Collider ◽  
Quark Gluon Plasma ◽  
Hadron Collider ◽  
Gluon Plasma ◽  
Plasma Formation

scholarly journals SUPPRESSION OF BOTTOMONIA STATES IN FINITE SIZE QUARK–GLUON PLASMA IN PbPb COLLISIONS AT LARGE HADRON COLLIDER

2013 ◽  
Vol 28 (21) ◽  
pp. 1350105 ◽  
Author(s):  
ABDULLA ABDULSALAM ◽  
PRASHANT SHUKLA
Keyword(s):  
Large Hadron Collider ◽  
Quark Gluon Plasma ◽  
Theoretical Calculations ◽  
Hadron Collider ◽  
Finite Size ◽  
Gluon Plasma ◽  
Binding Energies ◽  
Model Calculations ◽  
Nuclear Modification ◽  
Nuclear Modification Factors

The bottomonium states due to their varying binding energies dissolve at different temperatures and thus their nuclear modification factors and relative yields have potential to map the properties of Quark–Gluon Plasma (QGP). We estimate the suppression of bottomonia states due to color screening in an expanding QGP of finite lifetime and size with the conditions relevant for PbPb collisions at Large Hadron Collider. The properties of ϒ states and recent results on their dissociation temperatures have been used as ingredients in the study. The nuclear modification factors and the ratios of yields of ϒ states are then obtained as a function of transverse momentum and centrality. We compare our theoretical calculations with the bottomonia yields measured with CMS in PbPb collisions at [Formula: see text]. The model calculations explain the data very well.

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