Enhanced production of strange baryons in high-energy nuclear collisions from a multiphase transport model

Shao, Tianhao; Chen, Jinhui; Ko, Che Ming; Lin, Zi-Wei

doi:10.1103/PhysRevC.102.014906

Title: Enhanced production of strange baryons in high-energy nuclear collisions from a multiphase transport model

Journal Article · Wed Jul 08 00:00:00 EDT 2020 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.102.014906· OSTI ID:1637756

^[1];

^[2]; Ko, Che Ming ^[3]; Lin, Zi-Wei ^[4]

Fudan Univ., Shanghai (China); Chinese Academy of Sciences, Shanghai (China); Univ. of Chinese Academy of Sciences, Beijing (China)
Fudan Univ., Shanghai (China)
Texas A & M Univ., College Station, TX (United States)
East Carolina Univ., Greenville, NC (United States)

Here, we introduce additional coalescence factors for the production of strange baryons in a multiphase transport (AMPT) model in order to describe the enhanced production of multistrange hadrons observed in Pb + Pb collisions at $$\sqrt{s_{NN}}$$ = 2.76 TeV at the Large Hadron Collider (LHC) and Au + Au collisions at $$\sqrt{s_{NN}}$$ = 200 GeV at Relativistic Heavy-Ion Collider (RHIC). This extended AMPT model is found to also give a reasonable description of the multiplicity dependence of the strangeness enhancement observed in high multiplicity events in $$\textit{pp}$$ collisions at $$\sqrt{s}$$ = 7 TeV and $$\textit{p}$$-Pb collisions at $$\sqrt{s_{NN}}$$ = 5.02 TeV. We find that the coalescence factors depend on the system size but not much on whether the system is produced from A + A or $$\textit{p}$$ + A collisions. Here, the extended AMPT model thus provides a convenient way to model the mechanism underlying the observed strangeness enhancement in collisions of both small and large systems at RHIC and LHC energies.

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Research Organization:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); Chinese Academy of Sciences; National Natural Science Foundation of China (NSFC); Welch Foundation

Grant/Contract Number:: SC0015266; A1358; XDB34030200; 11890710; 11775288; 11421505; 11520101004

OSTI ID:: 1637756

Journal Information:: Physical Review C, Vol. 102, Issue 1; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 11 works

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