Disentangling contributions to small-system collectivity via scans of light nucleus-nucleus collisions

Huang, S.; Chen, Zhenyu; Li, Wei; Jia, J.

doi:10.1103/physrevc.101.021901

Cited by 36 publications

(23 citation statements)

References 58 publications

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“…The scaling of v 2,3 flows with multiplicity in ultracentral collisions (0-1% centrality percentile) in small and deformed systems produced in U+U, d+Au, 9 Be+Au, 9 Be+ 9 Be, 3 He+ 3 He, and 3 He+Au collisions at RHIC energies, including and excluding fluctuations from subnucleonic degrees of freedom, has been theoretically studied in References 121 and 122. This work indicates that such collisions can help discriminate between different initial entropy densities of the QGP medium formed at RHIC and the LHC (123,124). Implications for the extraction of QGP transport properties, such as its viscosity, are further developed in Section 4.3.…”

Section: Light and Heavy Deformed Nucleimentioning

confidence: 91%

Progress in the Glauber Model at Collider Energies

d’Enterria

Loizides

2021

Annu. Rev. Nucl. Part. Sci.

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We review the theoretical and experimental progress in the Glauber model of multiple nucleon and/or parton scatterings after the last 10–15 years of operation with proton and nuclear beams at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider. The main developments and the state of the art of the field are summarized. These encompass measurements of the inclusive inelastic proton and nuclear cross sections, advances in the description of the proton and nuclear density profiles and their fluctuations, inclusion of subnucleonic degrees of freedom, experimental procedures and issues related to the determination of the collision centrality, validation of the binary scaling prescription for hard scattering cross sections, and constraints on transport properties of quark–gluon matter from varying initial-state conditions in relativistic hydrodynamics calculations. These advances confirm the validity and usefulness of the Glauber formalism for quantitative studies of quantum chromodynamics matter produced in high-energy collisions of systems, from protons to uranium nuclei, of vastly different size. Expected final online publication date for the Annual Review of Nuclear and Particle Science, Volume 71 is September 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Section: Light and Heavy Deformed Nucleimentioning

confidence: 91%

Progress in the Glauber Model at Collider Energies

d’Enterria

Loizides

2021

Annu. Rev. Nucl. Part. Sci.

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“…This has triggered hot debates on whether the collectivity observed in small systems originates from final state QGP effects or from initial state gluon saturation effects [36][37][38][39][40][41][42][43]. One possible way of disentangling the initial state and final state contributions to jet observables is to scan the jet quenching effect across various sizes of nuclear collision systems [44,45]. This would bridge the gap between 0123456789().…”

Section: Introductionmentioning

confidence: 99%

Scaling behaviors of heavy flavor meson suppression and flow in different nuclear collision systems at the LHC

Liu

Xing

et al. 2021

Eur. Phys. J. C

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We explore the system size dependence of heavy-quark-QGP interaction by studying the heavy flavor meson suppression and elliptic flow in Pb–Pb, Xe–Xe, Ar–Ar and O–O collisions at the LHC. The space-time evolution of the QGP is simulated using a $$(3+1)$$ ( 3 + 1 ) -dimensional viscous hydrodynamic model, while the heavy-quark-QGP interaction is described by an improved Langevin approach that includes both collisional and radiative energy loss inside a thermal medium. Within this framework, we provides a reasonable description of the D meson suppression and flow coefficients in Pb–Pb collisions, as well as predictions for both D and B meson observables in other collision systems yet to be measured. We find a clear hierarchy for the heavy meson suppression with respect to the size of the colliding nuclei, while their elliptic flow coefficient relies on both the system size and the geometric anisotropy of the QGP. Sizable suppression and flow are predicted for both D and B mesons in O–O collisions, which serve as a crucial bridge of jet quenching between large and small collision systems. Scaling behaviors between different collision systems are shown for heavy meson suppression factor and the bulk-eccentricity-rescaled heavy meson elliptic flow as functions of the number of participant nucleons in heavy-ion collisions.

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“…The transverse momentum (p T ) distribution and the coalescence parameters (B A ) of light nuclei are comparable to the experimental data. On the other hand, the properties of QGP are sensitive to the initial geometry and the dynamical fluctuations in heavy-ion collisions, and the system size scan experiment has been proposed at RHIC energies recently [38]. These experiments will provide us more information of the initial geometry distribution and fluctuation effects on momentum distribution at the final stage, and some related theoretical analytical works have been performed [24,[39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Collision centrality and system size dependences of light nuclei production via dynamical coalescence mechanism

Cheng,

Zhang,

2021

Preprint

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Light (anti-)nuclei in relativistic heavy-ion collisions are considered to be formed by the coalescence mechanism of (anti-)nucleons in the present work. Using a dynamical phase-space coalescence model coupled with a multi-phase transport (AMPT) model, we explore the formation of light clusters such as deuteron, triton and their anti-particles in different centralities for 197 Au + 197 Au collisions at √ sNN = 39 GeV. The calculated transverse momentum spectra of protons, deuterons, and tritons are comparable to those of experimental data from the RHIC-STAR collaboration. Both coalescence parameters B2 for (anti-)deuteron and B3 for triton increase with the transverse momentum as well as the collision centrality, and they are comparable with the measured values in experiments. The effect of system size on the production of light nuclei is also investigated by 10 B + 10 B, 16 O + 16 O, 40 Ca + 40 Ca, and 197 Au + 197 Au systems in central collisions. The resultsshow that yields of light nuclei increase with system size, while the values of coalescence parameters present an opposite trend. It is interesting to see that the system size, as well as the centrality dependence of BA (A = 2, 3), falls into the same group, which further demonstrates production probability of light nuclei is proportional to the size of the fireball. Furthermore, we compare our coalescence results with other models, such as the thermal model and analytic coalescence model, it seems that the description of light nuclei production is consistent with each other.

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Disentangling contributions to small-system collectivity via scans of light nucleus-nucleus collisions

Cited by 36 publications

References 58 publications

Progress in the Glauber Model at Collider Energies

Progress in the Glauber Model at Collider Energies

Scaling behaviors of heavy flavor meson suppression and flow in different nuclear collision systems at the LHC

Collision centrality and system size dependences of light nuclei production via dynamical coalescence mechanism

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