Phenomenological study of light (anti)nuclei, (anti)hypertriton and di-Lambda production at RHIC

Abstract

We present the production of light (anti)nuclei, (anti)hypertriton and di-Lambda based on coalescence model in central Au+Au collisions at $\sqrt{s_{NN}}=200GeV$. The invariant yields of \He(\Hebar), \hypert(\hypertbar), \Hee(\Heebar) obtained is found to be consistent with the STAR measurements. The $p_T$ integrated yields for di-Lambda $d{N}_{\Lambda \Lambda }/dy\sim 2.23\times 10^{-5}$, and is not strongly dependent on the parameter employed for coalescence process. Relative particle ratios of light anti(nuclei) and (anti)hypertriton are explored, and agree with experimental data and thermal model predictions quite well. An exponential reducion behavior is presented for the differential invariant yields with increased baryon number. The production rate reduces by a factor of 1692 (1285) for each additional antinucleon (nucleon) added to antinuclei (nuclei), and the production rate of \Libar is predicted to be $10^{-16}$ which is consistent with STAR result.

arXiv comment4 pages, 3 figures parallel talk delivered by L. Xue at the 14th national conference on nuclear structure, April 12nd - 16th, 2012, Huzhou, China

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Cited by in corpus (23)

• Antinuclei in Heavy-Ion Collisions
• Formation of hypermatter and hypernuclei within transport models in relativistic ion collisions
• Hadronic effects on the X(3872) meson abundance in heavy ion collisions
• Analytical coalescence formula for particle production in relativistic heavy-ion collisions
• Production of antimatter ${}^{5,6}$Li nuclei in central Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV
• Production of multistrange hadrons, light nuclei and hypertriton in central Au+Au collisions at $\sqrt{s_{NN}}=$ 11.5 and 200 GeV
• Centrality dependence of light (anti)nuclei and (anti)hypertriton production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV
• Antimatter production in central Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$=200 GeV
• Energy dependence of light (anti)nuclei and (anti)hypertriton production in the Au-Au collision from $\sqrt{s_{\mathrm{NN}}}=5.0$ to $5020$ GeV
• Antimatter ${}_{\Lambda }^4$H Hypernucleus Production and the ${}_{\Lambda }^3$H/${}^3$He Puzzle in Relativistic Heavy-Ion Collisions
• Production of $\Omega NN$ and $\Omega \Omega N$ in ultra-relativistic heavy ion collisions
• A brief review of antimatter production
• Scaling Properties of light (anti)nuclei and (anti)hypertriton production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• Production of $\Lambda \Lambda$ and $\overline{\Lambda \text{n}}$ in central Pb+Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV within a covariant coalescence model
• Properties of light (anti)nuclei and (anti) hypertriton production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Predictions for production of ${}_{\mathrm{\Lambda }}^3\mathrm{H}$ and ${}_{\overline{\mathrm{\Lambda }}}^3\overline{\mathrm{H}}$ in isobaric ${}_{44}^{96}$Ru+${}_{44}^{96}$Ru and ${}_{40}^{96}$Zr+${}_{40}^{96}$Zr collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV
• Light (anti)nuclei production in Cu+Cu collisions at $\sqrt{s_{\mathrm{NN}}}=200$GeV
• Different production sources of light nuclei in relativistic heavy-ion collisions
• The effect of flow on Hadronic Spectra in an Excluded-Volume Model
• Production of light antinuclei in $pp$ collisions by dynamical coalescence and their fluxes in cosmic rays near earth
• Scaling of nuclear modification factors for hadrons and light nuclei
• Light (anti-)nuclei and (anti-)hypertriton production in $pp$ collisions at $\sqrt{s}=0.90,2.76$ and $7$ TeV
• ${}_{\mathrm{\Lambda }}^3\mathrm{H}$ and ${}_{\overline{\mathrm{\Lambda }}}^3\overline{\mathrm{H}}$ production and characterization in Cu+Cu collisions at $\sqrt{s_{\mathrm{NN}}}=200$GeV