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

Abstract

The production of ${}_{\mathrm{\Lambda }}^3\mathrm{H}$ and ${}_{\overline{\mathrm{\Lambda }}}^3\overline{\mathrm{H}}$, as well as ${}^3\mathrm{H}$, ${}^3\overline{\mathrm{H}}$, ${}^3\mathrm{He}$, and ${}^3\overline{\mathrm{He}}$ are studied in central collisions of isobars ${}_{44}^{96}$Ru+${}_{44}^{96}$Ru and ${}_{40}^{96}$Zr+${}_{40}^{96}$Zr at $\sqrt{s_{\mathrm{NN}}}=200$ GeV, using the dynamically constrained phase-space coalescence model and the {\footnotesize PACIAE} model with chiral magnetic effect. The yield, yield ratio, coalescence parameters, and strangeness population factor of (anti-)hypertriton and (anti-)nuclei produced in isobaric ${}_{44}^{96}$Ru+${}_{44}^{96}$Ru and ${}_{40}^{96}$Zr+${}_{40}^{96}$Zr collisions are predicted. The (anti-)hypertriton and (anti-)nuclei production is found to be insensitive to the chiral magnetic effects. Experimental data of Cu+Cu, Au+Au and Pb+Pb collisions from RHIC, LHC, and the results of {\footnotesize PACIAE+DCPC} model are presented in the results for comparison.

arXiv comment7 pages, 4 figures

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• Light hyperclusters and hyperons in low-density hot stellar matter