Geometry and Dynamics in Heavy-Ion Collisions Seen by the Femtoscopy in the STAR Experiment

Siejka, S.

doi:10.1016/j.nuclphysa.2018.10.072

Cited by 7 publications

(8 citation statements)

References 13 publications

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“…2 (c), however, qualitatively agrees with the experimental results in Ref. [79,80]. In addition, Fig.…”

Section: Nonidentical Light (Anti)nuclei Momentum Correlation Functio...supporting

confidence: 90%

“…A. Comparison between our p-p and p-p correlation functions with experimental data When the phase-space information of nucleons at the maximum rescattering time among hadrons of 700 f m/c is selected from the AMPT model, it is found that the results can well describe the experimental data for the momentum correlation functions of p-p and p-p from the RHIC-STAR collaboration [79,80], especially in more central collisions. Considering that the preliminary experimental results were not corrected by feed-down effect corrections [79,80], the real correlation functions for primary p-p and p-p could be much more stronger.…”

Section: Analysis and Discussionmentioning

confidence: 90%

“…Proton-proton (a) and proton-antiproton (b) momentum correlation functions for different centrality classes in √ sNN = 39 GeV Au + Au collisions. Solid markers represent the preliminary experimental data from the RHIC-STAR collaboration [79,80], and lines represent our model calculation results from the AMPT model plus the Lednický and Lyuboshitz code. Note that the longer hadronic rescattering time of 700 f m/c is used in this specific calculation for comparing with the data.…”

Section: Analysis and Discussionmentioning

confidence: 99%

“…In summary, with the AMPT model complemented by the Lednický and Lyuboshitz analytical method, we have constructed and analyzed the momentum correlation functions of light (anti)nuclei formed by the coalescence mechanism of (anti)nucleons for heavy-ion collisions with different system sizes and centralities at √ s N N = 39 GeV. We present a comparison of proton−proton and proton−antiproton momentum correlation functions with the experimental data from the RHIC-STAR collaboration [79,80]. Taking the same transverse momentum and rapidity phase space coverage corresponding to the experimental situation as well as the maximum hadronic rescattering time of 700 f m/c in AMPT, it is found that the p-p and p-p momentum correlation functions simulated by the present model can match the experimental data.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Simulations of momentum correlation functions of light (anti)nuclei in relativistic heavy-ion collisions at $\sqrt{s_{NN}}$ = 39 GeV

Wang¹,

Ma²,

Zhang³

2023

Preprint

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Momentum correlation functions of light (anti)nuclei formed by the coalescence mechanism of (anti)nucleons are calculated for several central heavy-ion collision systems, namely 10 5 B + 10 5 B, 16 8 O + 16 8 O, 40 20 Ca + 40 20 Ca as well as 197 79 Au + 197 79Au in different centralities at center of mass energy √ sNN = 39 GeV within the framework of A Multi-Phase Transport (AMPT) model complemented by the Lednický and Lyuboshitz analytical method. Momentum correlation functions for identical or nonidentical light (anti)nuclei are constructed and analyzed for the above collision systems. The Au + Au results demonstrate that emission of light (anti)nuclei occurs from a source with smaller space extent in more peripheral collisions. The effect of system-size on the momentum correlation functions of identical or nonidentical light (anti)nuclei is also explored by several collision system in central collisions. The results indicate that the emission source-size of light (anti)nuclei pairs deduced from their momentum correlation functions and system-size is self-consistent. Momentum correlation functions of nonidentical light nuclei pairs gated on velocity are applied to infer the average emission sequence of them. The results illustrate that protons are emitted in average on a similar time scale with neutrons but earlier than deuterons or tritons in the small relative momentum region. In addition, larger interval of the average emission order among them is exhibited for smaller collision systems or at more peripheral collisions.

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“…2 (c), however, qualitatively agrees with the experimental results in Ref. [79,80]. In addition, Fig.…”

Section: Nonidentical Light (Anti)nuclei Momentum Correlation Functio...supporting

confidence: 90%

Section: Analysis and Discussionmentioning

confidence: 90%

Section: Analysis and Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Simulations of momentum correlation functions of light (anti)nuclei in relativistic heavy-ion collisions at $\sqrt{s_{NN}}$ = 39 GeV

Wang¹,

Ma²,

Zhang³

2023

Preprint

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show abstract

“…Proton-antiproton correlation functions for different centrality classes for √ = 39 GeV[6],[7] of two protons or two antiprotons were found as = 2.75 ± 0.01(…”

mentioning

confidence: 99%

Geometry and Dynamics in Heavy-ion Collisions Seen by the Femtoscopy Method in the STAR experiment

Zbroszczyk¹

2021

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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Geometry and dynamics of the source produced due to heavy-ion collisions at high energies can be studied via the femtoscopy method. Correlations of two particles at small relative momentum are sensitive to Quantum Statistics and the Final State Interactions. They allow one to study the source's space-time properties, which are of the order of 10 −15 m and 10 −23 s, respectively. Beam Energy Scan (BES) program conducted at the Relativistic Heavy Ion Collider (RHIC) covers an essential part of the QCD Phase Diagram with beams of Au ions accelerated to relativistic velocities. Already completed, the first phase of the BES program uses heavy-ions collided in the energy range √ from 7.7 to 200 GeV. It is a baryon-rich region that can be studied via femtoscopy methods with baryons. On the one hand, meson-meson correlations are the most commonly studied, and baryon-baryon systems, together with two-meson and meson-baryon correlations, provide complete information about source parameters. On the other hand, non-identical particle combination measurements complement our knowledge about space-time asymmetries during the emission process. Physics of heavy-ion collisions is successfully deduced basing on studies of the properties of the particle-emitting source and how they change with different collision energies. Such studies include various centralities of the collision. In this paper, the STAR preliminary results, including femtoscopic systems of various particle combinations such as protons, pions, and kaons produced from Au+Au collisions at BES energies, are discussed.

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Beam-energy dependence of identified two-particle angular correlations in sNN=7.7–200 GeV Au+Au collisions

Adam¹,

Adamczyk²,

Adams³

et al. 2020

Phys. Rev. C

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Geometry and Dynamics in Heavy-Ion Collisions Seen by the Femtoscopy in the STAR Experiment

Cited by 7 publications

References 13 publications

Simulations of momentum correlation functions of light (anti)nuclei in relativistic heavy-ion collisions at $\sqrt{s_{NN}}$ = 39 GeV

Simulations of momentum correlation functions of light (anti)nuclei in relativistic heavy-ion collisions at $\sqrt{s_{NN}}$ = 39 GeV

Geometry and Dynamics in Heavy-ion Collisions Seen by the Femtoscopy Method in the STAR experiment

Beam-energy dependence of identified two-particle angular correlations in sNN=7.7–200 GeV Au+Au collisions

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