First observation of phi-meson directed flow v1 comparable in magnitude to protons and Lambdas but much larger than K0S, with baryon-like energy dependence at high baryon density.
Adamet al.(STAR), Phys
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Hypertriton yields and Lambda ratios increase at lower collision energies but remain a factor of two below thermal models, while the double ratio to triton production stays constant at 0.4, pointing to intrinsically lower coalescence probability.
A LightGBM model trained on pion observables from one transport model predicts impact parameters in Au+Au collisions at 4 and 11 GeV with 0.2-0.4 fm error, generalizing to data from other models where polynomial fits fail.
Mass-dependent parameterizations of the non-extensivity parameter q improve Tsallis Blast-Wave fits to identified hadron pT spectra from RHIC and LHC collisions.
The p_T dependence of the Ω/φ ratio in pp, p-Pb and Pb-Pb collisions is dominated by the discrete curvature of the strange-quark transverse-momentum spectrum extracted from φ data via quark-number scaling.
New measurements of Lambda hyperon yields in 4.0A-4.5A GeV carbon-nucleus collisions at the Nuclotron are presented and compared with transport model predictions.
citing papers explorer
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Observation of Strong $\phi$-meson Directed Flow at High Baryon Density
First observation of phi-meson directed flow v1 comparable in magnitude to protons and Lambdas but much larger than K0S, with baryon-like energy dependence at high baryon density.
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Collision Energy Dependence of Hypertriton Production in Au+Au Collisions at RHIC
Hypertriton yields and Lambda ratios increase at lower collision energies but remain a factor of two below thermal models, while the double ratio to triton production stays constant at 0.4, pointing to intrinsically lower coalescence probability.
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Machine learning the impact parameter in heavy-ion collisions at $\sqrt{s_{\rm NN}}$ = 4 and 11 GeV: a cross-check study with UrQMD, AMPT, and JAM
A LightGBM model trained on pion observables from one transport model predicts impact parameters in Au+Au collisions at 4 and 11 GeV with 0.2-0.4 fm error, generalizing to data from other models where polynomial fits fail.
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Mass-Dependent Non-Extensivity in Tsallis Blast-Wave Fits to Identified Hadron $p_T$ Spectra at RHIC and LHC
Mass-dependent parameterizations of the non-extensivity parameter q improve Tsallis Blast-Wave fits to identified hadron pT spectra from RHIC and LHC collisions.
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Transverse momentum dependence of $\Omega/\phi$ ratio in high energy collisions
The p_T dependence of the Ω/φ ratio in pp, p-Pb and Pb-Pb collisions is dominated by the discrete curvature of the strange-quark transverse-momentum spectrum extracted from φ data via quark-number scaling.
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Production of {\Lambda} hyperons in 4.0A GeV and 4.5A GeV carbon-nucleus interactions at the Nuclotron
New measurements of Lambda hyperon yields in 4.0A-4.5A GeV carbon-nucleus collisions at the Nuclotron are presented and compared with transport model predictions.