A dynamical quark coalescence model for φ and Ω production in heavy-ion collisions at RHIC

2006 ◽  
Author(s):  
Lie-Wen Chen ◽  
Che Ming Ko
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Coalescence Model ◽  
Ion Collisions ◽  
Quark Coalescence ◽  
Dynamical Quark

Coalescence-model analysis of alpha-particle and deutron spectra from energetic heavy-ion collisions

1987 ◽  
Vol 192 (3-4) ◽  
pp. 302-306 ◽  
Author(s):  
S. Datta ◽  
R. Čaplar ◽  
N. Cindro ◽  
R.L. Auble ◽  
J.B. Ball ◽  
...  
Keyword(s):  
Alpha Particle ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Model Analysis ◽  
Coalescence Model ◽  
Ion Collisions

scholarly journals Baryon spectra and antiparticle-to-particle ratios from the improved AMPT model

2018 ◽  
Vol 171 ◽  
pp. 14004 ◽  
Author(s):  
Yuncun He ◽  
Zi-Wei Lin
Keyword(s):  
Experimental Data ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Current Version ◽  
Ion Collisions ◽  
Particle Ratios ◽  
Quark Coalescence ◽  
Baryon Spectra ◽  
Multi Phase ◽  
Phase Transport

The current version of a multi-phase transport (AMPT) model with string melting can reasonably describe the dN/dy yields, pT spectra and anisotropic flows of pions and kaons at low pT in heavy ion collisions at RHIC and LHC energies, although it failed to reproduce the dN/dy and pT spectra of baryons. In this work, we improve the quark coalescence mechanism in AMPT by removing the forced separate number conservations of mesons, baryons and antibaryons in each event. We find that the improved AMPT model can better describe the yields at midrapidity, the pT spectra and elliptic flow of low-pT baryons in comparison with the experimental data. Antiparticle-to-particle ratios of strange baryons are also significantly improved.

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.

scholarly journals Conservational and Sequential Charm Hadronization in Heavy Ion Collisions

2019 ◽  
Vol 202 ◽  
pp. 06004 ◽  
Author(s):  
Jiaxing Zhao ◽  
Shuzhe Shi ◽  
Nu Xu ◽  
Pengfei Zhuang
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Hadron Production ◽  
Heavy Quarks ◽  
Coalescence Model ◽  
Charmed Hadron ◽  
Ion Collisions ◽  
Relative Enhancement ◽  
Charm Hadron

Heavy quarks are almost initially produced and the number is conserved during the evolution of the hot medium produced in Heavy Ion collisions. We firstly take into account the charm conservation effect on charm hadron hadronization via sequential coalescence model. In the frame of sequential coalescence, the charm conservation enhances the earlier hadron production and suppresses the later production. This relative enhancement (suppression) changes significantly the charmed hadron ratios in heavy ion collisions at RHIC and LHC.

A refined coalescence model for intermediate-energy heavy-ion collisions. Application to deuteron spectra

1988 ◽  
Vol 14 (7) ◽  
pp. 937-948 ◽  
Author(s):  
S Datta ◽  
R Caplar ◽  
N Cindro ◽  
R L Auble ◽  
J B Bazll ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Intermediate Energy ◽  
Coalescence Model ◽  
Ion Collisions

Dynamical quark-hadron phase transitions in heavy ion collisions

1983 ◽  
Vol 132 (4-6) ◽  
pp. 291-294 ◽  
Author(s):  
Bengt L. Friman ◽  
Gordon Baym ◽  
J.-P. Blaizot
Keyword(s):  
Phase Transitions ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Hadron Phase ◽  
Dynamical Quark
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