activity
20062026
most citedEvidence of quadrupole and octupole deformations in Zr+Zr and Ru+Ru collisions at ultra-relativistic energies

108 citations · 521 across the 43 of their papers we have counts for

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36 papers · 1 filter

nucl-th2026

Proton-proton Femtoscopy as a Probe of Short-range Structure in High-Energy O+O Collisions

Baoshan Xi, Pei Li, Chunjian Zhang +3

Short-range nucleon-nucleon correlations are a defining feature of the nuclear many-body wave function, yet they are invisible in the one-body density and therefore inaccessible to…

nucl-th2026

Nonlinear collective flow reveals the breakdown of quadrupole--hexadecapole scaling in heavy ion collisions

Hadi Mehrabpour, Zahra Sheibani, Li Yan +2

Determining the role of intrinsic hexadecapole deformation () in nuclear structure remains a long-standing challenge. Relativistic heavy-ion collisions provide a unique opport…

nucl-th2026

Nonflow Subtraction Beyond Two-Particle Correlations

Zaining Wang, Jiangyong Jia, Jinhui Chen +3

Establishing collective flow in small collision systems is a crucial and necessary condition for pinning down the minimum conditions for quark-gluon plasma (QGP) formation. In two-…

nucl-th2025

New constraints on equation of state of hot QCD matter

Lu-Meng Liu, Jinhui Chen, Xu-Guang Huang +3

The longitudinal structure of the quark-gluon plasma(QGP) remains a key challenge in heavy-ion physics. In this Letter, we propose a novel observable, event-by-event mean transvers…

nucl-th2025★ 2 cited

Scaling approach to rigid and soft nuclear deformation through flow fluctuations in high-energy nuclear collisions

Lumeng Liu, Chunjian Zhang, Jinhui Chen +3

The nature of octupole deformation, whether static or vibrational, remains an open question in nuclear physics. Here, we propose a scaling approach to probe this ambiguity by trian…

nucl-th2025

Symmetric-asymmetric collision comparison: disentangling nuclear structure and subnucleonic structure effects for small system flow

Shengli Huang, Jiangyong Jia, Chunjian Zhang

Previous flow measurements in small collision systems were mostly based on highly asymmetric collisions (+Pb, +Au, +Au, He+Au), where both nuclear structure and subn…

nucl-th2025★ 1 cited

Imprints of octupole collectivity in uranium-238 on relativistic heavy-ion flow observables

Chunjian Zhang, Jiangyong Jia, Jinhui Chen +2

Some atomic nuclei exhibit enhanced octupole collectivity, reflected in finite reflection-asymmetric multipole correlations rather than necessarily in a rigid static pear-shaped gr…

nucl-th2025★ 9 cited

Directly probing existence of -cluster structure in Ne by relativistic heavy-ion collisions

Lu-Meng Liu, Hai-Cheng Wang, Song-Jie Li +5

Can relativistic heavy-ion collisions only probe the global shape of colliding nuclei, or their detailed internal structure as well? Taking Ne as an example, we attempt to d…

nucl-th2025

Energy dependence of transverse momentum fluctuations in Au+Au collisions from a multiphase transport model

Liuyao Zhang, Jinhui Chen, Chunjian Zhang

Event-by-event mean transverse momentum fluctuations () serve as a sensitive probe of initial state overlap geometry and energy density fluctuations in…

nucl-th2025

Validation and extrapolation of atomic mass with physics-informed fully connected neural network

Yiming Huang, Jinhui Chen, Jiangyong Jia +3

Machine learning offers a powerful framework for validating and predicting atomic mass. We compare three improved neural network methods for representation and extrapolation for at…

nucl-th2024★ 1 cited

Disentangling nuclear structure through multiparticle azimuthal correlations in high-energy isobar collisions

Zaining Wang, Jinhui Chen, Jiangyong Jia +2

Event-by-event fluctuations in the amplitudes of flow harmonics offer a novel approach to probing the initial-state characteristics in heavy-ion collisions. In this study, we condu…

nucl-th2024★ 1 cited

Sources of longitudinal flow decorrelations in high-energy nuclear collisions

Jiangyong Jia, Shengli Huang, Chunjian Zhang +1

The longitudinal structure of the quark-gluon plasma (QGP) consists of several components spanning various scales. However, its short-range features are often obscured by final-sta…

nucl-th2024

Longitudinal structure of the quark-gluon plasma from differently shaped nuclei

Jiangyong Jia, Chunjian Zhang, Shengli Huang

Ultrarelativistic collisions of atomic nuclei produce the quark--gluon plasma (QGP), an extremely hot, dense state of matter. The QGP behaves like a nearly perfect fluid, so its fi…

nucl-th2024★ 1 cited

- nucleon-nucleon correlations and their impact on high energy O+O collisions

Chunjian Zhang, Jinhui Chen, Giuliano Giacalone +3

Investigating nucleon-nucleon correlations inherent to the strong nuclear force is one of the core goals in nuclear physics research. We showcase the unique opportunities offered b…

nucl-th2023

Impact of nuclear structure on longitudinal flow decorrelations in high-energy isobar collisions

Maowu Nie, Chunjian Zhang, Zhenyu Chen +2

Fluctuations of harmonic flow along pseudorapidity, known as flow decorrelations, are an important probe of the initial state geometry of the quark-gluon plasma. The flow decorrela…

nucl-th2023

Energy dependence of heavy-ion initial condition in isobar collisions

Somadutta Bhatta, Chunjian Zhang, Jiangyong Jia

Collisions of isobar nuclei, those with the same mass number but different structure parameters, provide a new way to probe the initial condition of the heavy ion collisions. Using…

nucl-th2022★ 17 cited

Free spectator nucleons in ultracentral relativistic heavy-ion collisions as a probe of neutron skin

Lu-Meng Liu, Chun-Jian Zhang, Jun Xu +2

Besides the yield ratio of free spectator neutrons produced in ultracentral Zr+Zr to Ru+Ru collisions, we propose that the yield ratio of free…

nucl-th2022★ 14 cited

Impact of nuclear structure on longitudinal flow decorrelations in high-energy isobar collisions

Maowu Nie, Chunjian Zhang, Zhenyu Chen +2

Fluctuations of harmonic flow along pseudorapidity, known as flow decorrelations, are an important probe of the initial state geometry of the quark-gluon plasma. The flow decorrela…

nucl-th2022★ 57 cited

Separating the impact of nuclear skin and nuclear deformation in high-energy isobar collisions

Jiangyong Jia, Giuliano Giacalone, Chunjian Zhang

Bulk nuclear structure properties, such as radii and deformations, leave distinct signatures in the final state of relativistic heavy-ion collisions. Isobaric collisions offer an e…

nucl-th2022★ 19 cited

Precision tests of the nonlinear mode coupling of anisotropic flow via high-energy collisions of isobars

Jiangyong Jia, Giuliano Giacalone, Chunjian Zhang

Valuable information on the dynamics of expanding fluids can be inferred from the response of such systems to perturbations in their initial geometry. We apply this technique in hi…

nucl-th2022★ 34 cited

Ratios of collective flow observables in high-energy isobar collisions are insensitive to final state interactions

Chunjian Zhang, Somadutta Bhatta, Jiangyong Jia

The ratios of bulk observables, such as harmonic flow and , between high-energy Ru+Ru and Zr+Zr collisions were recently argued to be a clean…

nucl-th2022★ 11 cited

Impact of event activity variable on the ratio of observables in isobar collisions

Jiangyong Jia, Gang Wang, Chunjian Zhang

The STAR isobar data of Ru+Ru and Zr+Zr collisions at GeV show that ratios of observables () such as the…

nucl-th2022★ 32 cited

Probing neutron-skin thickness with free spectator neutrons in ultracentral high-energy isobaric collisions

Lu-Meng Liu, Chun-Jian Zhang, Jia Zhou +3

We show that the yield ratio of free spectator neutrons produced in high-energy Zr+Zr to Ru+Ru collisions is a clean probe of the neutron-skin thickness…

nucl-th2021★ 21 cited

Higher-order transverse momentum fluctuations in heavy-ion collisions

Somadutta Bhatta, Chunjian Zhang, Jiangyong Jia

In relativistic heavy-ion collisions, the event-by-event mean transverse momentum fluctuations are sensitive to overlap area and energy density fluctuations in initial state. We pr…