Production of ${}_{\Lambda }^{3}H$ and ${}_{\Lambda }^{4}H$ in Central 11.5 GeV/c Au + Pt Heavy Ion Collisions

Abstract

We present measurements from BNL AGS Experiment E864 of the ${}_{\Lambda }^{3}H$ invariant multiplicity and of the 90% Confidence Level upper limit on the ${}_{\Lambda }^{4}H$ yield in central 11.5 A GeV/c Au + Pt collisions. The measurements span a rapidity range from center of mass, $y_{cm}$, to $y_{cm}$+1 and a transverse momentum range of $0.<p_T\le 1.5$ GeV/c. We compare these results with E864 measurements of stable light nuclei and particle unstable nuclei yields of the same baryon number. The implications of these results for the coalescence of strange clusters are discussed.

arXiv comment16 pages, 4 figures, 2 tables

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• Suppression of light nuclei production in collisions of small systems at the Large Hadron Collider
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• Antideuteron and deuteron production in mid-central Pb+Pb collisions at 158$A$ GeV
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• A brief review of antimatter production
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• Evaluation of the hyperon binding energy via statistical production of hypernuclei
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• Observation of hypertritons in Au+Au collisions at \sqrt{s_{NN}} = 200 GeV
• Production of fragments and hyperfragments in antiproton-nucleus collisions
• 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
• Highlights from STAR: probing the early medium in heavy ion collisions
• ${}_{\mathrm{\Lambda }}^3\mathrm{H}$ and ${}_{\overline{\mathrm{\Lambda }}}^3\overline{\mathrm{H}}$ production and characterization in Cu+Cu collisions at $\sqrt{s_{\mathrm{NN}}}=200$GeV
• Formation of light nuclei at chemical freezeout: Description within a statistical thermal model
• Strangeness and hypernuclear production in fragmentation reactions induced by antikaons
• Hyperon dynamics and production of multi-strangeness hypernuclei in heavy-ion collisions at 3A GeV
• A Data-Guided Coalescence Model for Light Nuclei and Hypernuclei Production in Relativistic Heavy-Ion Collisions at $\sqrt{s_{\mathrm{NN}}}=3$--200 GeV