Global Λ polarization in heavy-ion collisions from a transport model
By Hui Li, L. Pang, Qun Wang, Xiao-Liang Xia. 2017
144 citations recorded by the source corpus.
Off-central relativistic heavy ion collisions impart very large orbital angular momenta onto the quark-gluon plasma, creating a strong vortex in the initial hot fluid and appearing eventually, via spin-vorticity coupling, as particle polarization. From the vorticity field given by a multi-phase transport model the authors compute the global polarization of $\mathrm{\ensuremath{\Lambda}}$ baryons which is in agreement with experimental data. This suggests that the spin of a hadron could provide information on quark-gluon plasma flow.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/14dabee9172ce4faacc169a72d507446be5d39c5
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In Nuclear and High Energy Physics
Citations in the corpus
- Mapping the phases of quantum chromodynamics with beam energy scan (2019, methodology): “The dot-dashed-lines represent the AMPT model calculations for the average polarization of combined Λ and Λ hyperons [173, 174, 184].”
- Global polarization of $\Lambda$ hyperons in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV (2018, unknown): “[14, 15, 19] and was found to dilute the polarization of the primary Λs by 15%–20%.”
- Relativistic dissipative spin dynamics in the relaxation time approximation (2020, background): “While the global spin polarization of the Λ (and Λ̄) hyperons can be explained by the assumption that the spin polarization is directly expressed by the so-called thermal vorticity [7, 8, 9, 10, 11, 12], other features of the data lack convincing theoretical explanations [13, 14].”