Antimatter<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">H</mml:mi><mml:mprescripts /><mml:mi mathvariant="normal">Λ</mml:mi><mml:mn>4</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>hypernucleus production and the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">H</mml:mi><mml:mprescripts /><mml:mi mathvariant="normal">Λ</mml:mi><mml:mn>3</mml:mn></mml:mmultiscripts></mml:

Sun, Kai-Jia; Chen, Lie‐Wen

doi:10.1103/physrevc.93.064909

Cited by 27 publications

(18 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the statistical model, the yields of hadrons and light nuclei can be nicely described with a few parameters related to the chemical freeze-out conditions [10,11]. In the coalescence model, light nuclei are formed through the recombination of protons and neutrons with close positions and velocities on the kinetic freeze-out surface [12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Spectra and flow of light nuclei in relativistic heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

et al. 2018

View full text Add to dashboard Cite

Within the framework of the coalescence model based on the phase-space distributions of protons and neutrons generated from the iEBE-VISHNU hybrid model with AMPT initial conditions, we study the spectra and elliptic flow of deuterons and helium-3 in relativistic heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Larger Hadron Collider (LHC). Results from our model calculations for Au + Au collisions at √ sNN = 200 GeV at RHIC and Pb+Pb collisions at √ sNN = 2.76 TeV at the LHC are compared with available experimental data. Good agreements are generally seen between theoretical results and experimental data, except that the calculated yield of helium-3 in Pb + Pb collisions at √ sNN = 2.76 TeV underestimates the data by about a factor of two. Possible reasons for these discrepancies are discussed. We also make predictions on the spectra and elliptic flow of deuterons and helium-3 in Pb + Pb collisions at √ sNN = 5.02 TeV that are being studied at LHC.

show abstract

Section: Introductionmentioning

confidence: 99%

Spectra and flow of light nuclei in relativistic heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The thermal model has been successfully used to describe the multiplicities or particle ratios of hadrons and light nuclei [65] in relativistic heavy-ion collisions, while the coalescence model basing on phase space data is another useful tool to treat light nuclei production. In practice, the phase-space data can be generated from various models, such as blast-wave model [66], hydrodynamics [31], transport model [67] or pure analytical calculation [63]. In our work, the coalescence model basing on the AMPT phase space data is used to study the light nuclei production at RHIC lower energy in the Beam Energy Scan project [68,69], the results are consistent with the previous calculations and provide a more comprehensive understanding of the experiment data.…”

Section: Coalescence Parameters B2 and B3mentioning

confidence: 99%

Collision centrality and system size dependences of light nuclei production via dynamical coalescence mechanism

Cheng,

Zhang,

2021

Preprint

View full text Add to dashboard Cite

Light (anti-)nuclei in relativistic heavy-ion collisions are considered to be formed by the coalescence mechanism of (anti-)nucleons in the present work. Using a dynamical phase-space coalescence model coupled with a multi-phase transport (AMPT) model, we explore the formation of light clusters such as deuteron, triton and their anti-particles in different centralities for 197 Au + 197 Au collisions at √ sNN = 39 GeV. The calculated transverse momentum spectra of protons, deuterons, and tritons are comparable to those of experimental data from the RHIC-STAR collaboration. Both coalescence parameters B2 for (anti-)deuteron and B3 for triton increase with the transverse momentum as well as the collision centrality, and they are comparable with the measured values in experiments. The effect of system size on the production of light nuclei is also investigated by 10 B + 10 B, 16 O + 16 O, 40 Ca + 40 Ca, and 197 Au + 197 Au systems in central collisions. The resultsshow that yields of light nuclei increase with system size, while the values of coalescence parameters present an opposite trend. It is interesting to see that the system size, as well as the centrality dependence of BA (A = 2, 3), falls into the same group, which further demonstrates production probability of light nuclei is proportional to the size of the fireball. Furthermore, we compare our coalescence results with other models, such as the thermal model and analytic coalescence model, it seems that the description of light nuclei production is consistent with each other.

show abstract

“…where the number of protons N p is assumed to be the same as in the thermal model and it is given by equation (10).…”

Section: D/p In Coalescence Modelmentioning

confidence: 99%

“…Although the coalescence model is known to work well in a broad range of collision energies, the model is well justified when nucleons are truly produced because of the energy scale separation. So, it is not surprising that the model properly describes production of light nuclei and antinuclei at RHIC and LHC [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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

Mrówczyński

2020

Eur. Phys. J. Spec. Top.

View full text Add to dashboard Cite

The 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.

show abstract

AntimatterHΛ4hypernucleus production and theHΛ3

Abstract: We show that the measured yield ratio H) would be very useful to understand the (anti-)Λ freezeout dynamics and the production mechanism of (anti)hypernuclei in relativistic heavy-ion collisions.PACS numbers: 25.75.Dw, 21.80.+a

Cited by 27 publications

References 64 publications

Spectra and flow of light nuclei in relativistic heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

Spectra and flow of light nuclei in relativistic heavy ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

Collision centrality and system size dependences of light nuclei production via dynamical coalescence mechanism

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

Contact Info

Product

Resources

About