Model for proton, pion, and deuteron production in ion-ion collisions

1983 ◽  
Vol 28 (1) ◽  
pp. 164-167 ◽  
Author(s):  
C. Gale ◽  
A. C. Maso ◽  
S. Das Gupta ◽  
B. K. Jennings
Keyword(s):  
Ion Collisions ◽  
Deuteron Production

Transport model calculations of deuteron production in relativistic hadron and heavy‐ion collisions

2019 ◽  
Vol 340 (9-10) ◽  
pp. 977-982
Author(s):  
Marcus Bleicher ◽  
Paula Hillmann ◽  
Tom Reichert ◽  
Jan Steinheimer ◽  
Sukanya Sombun ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Transport Model ◽  
Heavy Ion ◽  
Model Calculations ◽  
Ion Collisions ◽  
Deuteron Production

scholarly journals Deuteron production in relativistic heavy ion collisions via stochastic multiparticle reactions

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
J. Staudenmaier ◽  
D. Oliinychenko ◽  
J. M. Torres-Rincon ◽  
H. Elfner
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Deuteron Production

scholarly journals Centrality Dependence of Deuteron Production in PbPb Collisions at 2.76 TeV via Hydrodynamics and Hadronic Afterburner +

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 6
Author(s):  
Dmytro Oliinychenko ◽  
Long-Gang Pang ◽  
Hannah Elfner ◽  
Volker Koch
Keyword(s):  
Transverse Momentum ◽  
Good Description ◽  
Hybrid Approach ◽  
Heavy Ion ◽  
High Energy ◽  
Central Collisions ◽  
Ion Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Deuteron Production

The deuteron binding energy is only 2.2 MeV. At the same time, its yield in Pb+Pb collisionsatpsNN = 2.76 TeV corresponds to a thermal yield at the temperature around 155 MeV, which is toohot to keep deuterons bound. This puzzle is not completely resolved yet. In general, the mechanism oflight nuclei production in ultra-high energy heavy ion collisions remains under debate. In a previouswork we suggest a microscopic explanation of the deuteron production in central ultra-relativisticPb+Pb collisions, the main mechanism being ppn $ pd reactions in the hadronic phase of thecollision. We use a state-of-the-art hybrid approach, combining relativistic hydrodynamics for the hotand dense stage and hadronic transport for a later, more dilute stage. Deuteron rescattering in thehadronic stage is implemented explicitly, using its experimentally measured vacuum cross-sections.In these proceedings we extend our previous work to non-central collisions, keeping exactly thesame methodology and parameters. We find that our approach leads to a good description of themeasured deuteron transverse momentum spectra at centralities up to 40%, and underestimatesthe amount of deuterons at low transverse momentum at higher centralities. Nevertheless, thecoalescence parameter B2, measured by ALICE collaboration, is reproduced well in our approacheven for peripheral collisions.

scholarly journals Understanding the energy dependence of $$B_2$$ in heavy ion collisions: interplay of volume and space-momentum correlations

2021 ◽  
Vol 57 (2) ◽  
Author(s):  
Vincent Gaebel ◽  
Michel Bonne ◽  
Tom Reichert ◽  
Ajdin Burnic ◽  
Paula Hillmann ◽  
...  
Keyword(s):  
Radial Flow ◽  
Transport Model ◽  
Qualitative Change ◽  
Heavy Ion ◽  
Volume Effect ◽  
Quantum Molecular Dynamics ◽  
Proton Proton ◽  
Coalescence Model ◽  
Ion Collisions ◽  
Deuteron Production

AbstractThe deuteron coalescence parameter $$B_2$$ B 2 in proton+proton and nucleus+nucleus collisions in the energy range of $$\sqrt{s_{NN}}=$$ s NN = 900–7000 GeV for proton + proton and $$\sqrt{s_{NN}}=$$ s NN = 2–2760 GeV for nucleus + nucleus collisions is analyzed with the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) transport model, supplemented by an event-by-event phase space coalescence model for deuteron and anti-deuteron production. The results are compared to data by the E866, E877, PHENIX, STAR and ALICE experiments. The $$B_2$$ B 2 values are calculated from the final spectra of protons and deuterons. At lower energies, $$\sqrt{s_{NN}}\le 20$$ s NN ≤ 20 GeV, $$B_2$$ B 2 drops drastically with increasing energy. The calculations confirm that this is due to the increasing freeze-out volume reflected in $$B_2\sim 1/V$$ B 2 ∼ 1 / V . At higher energies, $$\sqrt{s_{NN}}\ge 20$$ s NN ≥ 20 GeV, $$B_2$$ B 2 saturates at a constant level. This qualitative change and the vanishing of the volume suppression is shown to be due to the development of strong radial flow with increasing energy. The flow leads to strong space-momentum correlations which counteract the volume effect.

Aspects of deuteron production in relativistic heavy ion collisions

1982 ◽  
Vol 25 (1) ◽  
pp. 278-285 ◽  
Author(s):  
B. K. Jennings ◽  
S. Das Gupta ◽  
N. Mobed
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Deuteron Production

GIANT RESONANCES IN HEAVY ION COLLISIONS

1984 ◽  
Vol 45 (C6) ◽  
pp. C6-269-C6-279
Author(s):  
A. Bonaccorso ◽  
M. Di Toro ◽  
U. Lombardo ◽  
G. Russo
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Giant Resonances ◽  
Ion Collisions
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