Baryon preclustering at the freeze-out of heavy-ion collisions and light-nuclei production

Abstract

Following the idea of nucleon clustering and light-nuclei production in relativistic heavy-ion collisions close to the QCD critical-end point, we address the quantum effects affecting the interaction of several nucleons at finite temperature. For this aim we use the $K$-harmonics method to four-nucleon states ($\alpha$ particle), and also develop a novel semiclassical "flucton" method at finite temperature, based on certain classical paths in Euclidean time, and apply it to two- and four-particle configurations. To study possible effects on the light-nuclei production close to the QCD critical point, we also made such calculations with modified internuclear potentials. For heavy-ion experiments, we propose new measurements of light-nuclei multiplicity ratios which may show enhancements due to baryon preclustering. We point out the special role of the $\mathcal{O}(50)$ four-nucleon excitations of $\alpha$-particle, feeding into the final multiplicities of $d,t$, ${}^3$He and ${}^4$He, and propose to directly look for their two-body decays.

arXiv comment20 pages, 16 figures, typos fixed, small corrections and clarifications added, quality of some plots improved, references added. Version accepted for publication by the Physical Review C journal

References in corpus (22)

• Signatures of the Tricritical Point in QCD
• Alpha cluster condensation in 12C and 16O
• Decoding the phase structure of QCD via particle production at high energy
• Bulk Properties of the Medium Produced in Relativistic Heavy-Ion Collisions from the Beam Energy Scan Program
• Small System Collectivity in Relativistic Hadron and Nuclear Collisions
• Hydrodynamics near the QCD Phase Transition: Looking for the Longest-Lived Fireball
• ${}_{\Lambda }^3\mathrm{H}$ and ${}_{\bar{\Lambda }}^3\overline{\mathrm{H}}$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Measurement of the mass difference and the binding energy of the hypertriton and antihypertriton
• Spectral Functions for the Quark-Meson Model Phase Diagram from the Functional Renormalization Group
• Loosely-bound objects produced in nuclear collisions at the LHC
• Deuterons at LHC: "snowballs in hell" via hydrodynamics and hadronic afterburner
• Probing QCD critical fluctuations from light nuclei production in relativistic heavy-ion collisions
• Observation of the critical end point in the phase diagram for hot and dense nuclear matter
• Production of ${}^4$He and ${}^4\overline{\text{He}}$ in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV at the LHC
• Production of deuterium, tritium, and ${}^3$He in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV at the CERN SPS
• Nucleosynthesis in heavy-ion collisions at the LHC via the Saha equation
• Baryon clustering at the critical line and near the hypothetical critical point in heavy-ion collisions
• Equation of state of a quark-meson mixture in the improved-PNJL model at finite chemical potential
• Quantum and thermal fluctuations in quantum mechanics and field theories from a new version of semiclassical theory
• Semiclassical Series at Finite Temperature
• Fluctuations in quantum mechanics and field theories from a new version of semiclassical theory. II
• Trans-series for the ground state density and Generalized Bloch equation

Cited by in corpus (31)

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• On coalescence as the origin of nuclei in hadronic collisions
• Deuteron production in AuAu collisions at $\sqrt{s_{NN}}=7-200$ GeV via pion catalysis
• Beam Energy dependence of Light Nuclei Production in Au+Au Collisions
• Lattice simulations of the QCD chiral transition at real baryon density
• Light nuclei production in relativistic heavy ion collisions from the AMPT model
• Coalescence, the thermal model and multi-fragmentation: The energy and volume dependence of light nuclei production in heavy ion collisions
• Dynamical exploring the QCD matter at finite temperatures and densities-a short review
• Overview of light nuclei production in relativistic heavy-ion collisions
• Light-nuclei production and search for the QCD critical point
• Light nuclei production in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7-80 GeV from UrQMD model
• Effects of QCD critical point on light nuclei production
• Production of Protons and Light Nuclei in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV with the STAR Detector
• On nuclear coalescence in small interacting systems
• Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions
• Enhanced yield ratio of light nuclei in heavy ion collisions with a first-order QCD phase transition
• Update of the Three-fluid Hydrodynamics-based Event Simulator: light-nuclei production in heavy-ion collisions
• Effect of initial-state geometric configurations on the nuclear liquid-gas phase transition
• Deuteron yields from LHC: Continuum correlations and in-medium effects
• Second virial coefficients of light nuclear clusters and their chemical freeze-out in nuclear collisions
• Applications of Persistent Homology in Nuclear Collisions
• Event-by-event anti-deuteron multiplicity fluctuation in Pb+Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• Many-body forces and nucleon clustering near the QCD critical point
• Light-nuclei production in heavy-ion collisions within a thermodynamical approach
• Nucleon clustering at kinetic freezeout of heavy-ion collisions via path-integral Monte Carlo
• Examination of background effects on light-nuclei yield ratio in relativistic heavy-ion collisions
• Collision-energy Dependence of Deuteron Cumulants and Proton-deuteron Correlations in Au+Au collisions at RHIC
• On connection between perturbation theory and semiclassical expansion in quantum mechanics
• Probing of EoS with clusters and hypernuclei
• Study of neutron density fluctuation and neutron-proton correlation in Au+Au collisions using PYTHIA8/Angantyr