J/Ψ suppression in relativistic heavy ion collisions through final state interactions with excited nucleons

1990 ◽  
Vol 46 (4) ◽  
pp. 693-695
Author(s):  
Ursula Gaul
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Final State ◽  
Ion Collisions ◽  
Final State Interactions

scholarly journals Production of light nuclei at colliders – coalescence vs. thermal model

2020 ◽  
Vol 229 (22-23) ◽  
pp. 3559-3583
Author(s):  
Stanisław Mrówczyński
Keyword(s):  
Correlation Function ◽  
Thermal Model ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Light Nuclei ◽  
Relativistic Heavy Ion Collisions ◽  
Final State ◽  
Coalescence Model ◽  
Ion Collisions ◽  
Final State Interactions

AbstractThe production of light nuclei in relativistic heavy-ion collisions is well described by both the thermal model, where light nuclei are in equilibrium with hadrons of all species present in a fireball, and by the coalescence model, where light nuclei are formed due to final-state interactions after the fireball decays. We present and critically discuss the two models and further on we consider two proposals to falsify one of the models. The first proposal is to measure a yield of exotic nuclide 4Li and compare it to that of 4He. The ratio of yields of the nuclides is quite different in the thermal and coalescence models. The second proposal is to measure a hadron-deuteron correlation function which carries information whether a deuteron is emitted from a fireball together with all other hadrons, as assumed in the thermal model, or a deuteron is formed only after nucleons are emitted, as in the coalescence model. The p − 3He correlation function is of interest in context of both proposals: it is needed to obtain the yield of 4Li which decays into p and 3He, but the correlation function can also tell us about an origin of 3He.

PARTICLE IDENTIFICATION IN THE DYNAMICAL STRING-PARTON MODEL OF RELATIVISTIC HEAVY-ION COLLISIONS

1999 ◽  
Vol 08 (04) ◽  
pp. 299-309 ◽  
Author(s):  
D. E. MALOV ◽  
A. S. UMAR ◽  
D. J. ERNST ◽  
D. J. DEAN
Keyword(s):  
Heavy Ion Collisions ◽  
Parton Model ◽  
Heavy Ion ◽  
Particle Identification ◽  
Relativistic Heavy Ion Collisions ◽  
Mass Window ◽  
Final State ◽  
Ion Collisions ◽  
Physical Mass ◽  
The Masses

The dynamical string-parton model for relativistic heavy-ion collisions is generalized to include particle identification of the final-state hadrons by phenomenologically quantizing the masses of the classical strings which result from string breaking. General features of the Nambu-Gotō strings are used to motivate a model that identifies a mass window near the physical mass of a meson, and does not allow the string to decay further if its mass falls within the window. Data from e+e- collisions in the region [Formula: see text] to 30 GeV are well reproduced by this model.

scholarly journals Coulomb Final State Interaction in Heavy Ion Collisions for Lévy Sources

Universe ◽  
2019 ◽  
Vol 5 (6) ◽  
pp. 133 ◽  
Author(s):  
Máté Csanád ◽  
Sándor Lökös ◽  
Márton Nagy
Keyword(s):  
Coulomb Interaction ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Final State Interaction ◽  
Heavy Ion ◽  
High Energy ◽  
State Interaction ◽  
Final State ◽  
Ion Collisions ◽  
Final State Interactions

Investigation of momentum space correlations of particles produced in high energy reactions requires taking final state interactions into account, a crucial point of any such analysis. Coulomb interaction between charged particles is the most important such effect. In small systems like those created in e + e - - or p + p collisions, the so-called Gamow factor (valid for a point-like particle source) gives an acceptable description of the Coulomb interaction. However, in larger systems such as central or mid-central heavy ion collisions, more involved approaches are needed. In this paper we investigate the Coulomb final state interaction for Lévy-type source functions that were recently shown to be of much interest for a refined description of the space-time picture of particle production in heavy-ion collisions.

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