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Related papers: Hexadecapole deformation of $^{238}$U from relativ…

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In the hydrodynamic framework of heavy-ion collisions, elliptic flow, $v_2$, is sensitive to the quadrupole deformation, $\beta$, of the colliding ions. This enables one to test whether the established knowledge on the low-energy structure…

Nuclear Theory · Physics 2022-01-04 Giuliano Giacalone , Jiangyong Jia , Chunjian Zhang

Preliminary data by the STAR collaboration at the BNL Relativistic Heavy Ion Collider shows that the elliptic flow, $v_2$, and the average transverse momentum, $\langle p_t \rangle$, of final-state hadrons produced in high-multiplicity…

Nuclear Theory · Physics 2021-02-23 Giuliano Giacalone

Relativistic heavy ion collisions provide a unique opportunity to study the shape of colliding nuclei, even up to higher-order multiple deformations. In this work, several observables that are sensitive to quadrupole and hexadecapole…

Nuclear Theory · Physics 2024-08-29 Zaining Wang , Jinhui Chen , Hao-jie Xu , Jie Zhao

The vast knowledge of strong influence of quadrupole deformation $\beta_2$ of colliding nuclei on heavy-ion subbarrier fusion reactions inspires a desire to quest the sensitivity of fusion dynamics to higher order deformations, such as…

Nuclear Theory · Physics 2018-06-20 Gurpreet Kaur , K. Hagino , N. Rowley

Due to their weak coupling to the strongly interacting matter produced in relativistic heavy-ion collisions, dileptons serve as a sensitive probe of the initial geometry of the colliding nuclei. In this study, we investigate the influence…

Nuclear Theory · Physics 2025-07-25 Wen-Hao Zhou , Lu-Meng Liu , Che Ming Ko , Kai-Jia Sun , Jun Xu

There is strong evidence of the failure of hydrodynamic simulations of the quark-gluon plasma (QGP) to reproduce data on the elliptic flow of particles in relativistic collisions of $^{238}$U nuclei at the BNL Relativistic Heavy Ion…

Nuclear Theory · Physics 2023-05-29 Wouter Ryssens , Giuliano Giacalone , Björn Schenke , Chun Shen

We present a novel ``imaging-by-smashing" approach for probing nuclear deformation in high-energy heavy-ion collisions. By analyzing anisotropic-flow ($v_n$) and mean transverse momentum ($\left[p_T\right]$)-based observables in collisions…

Nuclear Experiment · Physics 2025-12-08 Chunjian Zhang

Some atomic nuclei exhibit ``pear" shapes arising from octupole deformation ($\beta_3$), though direct experimental evidences for such exotic shapes remains scarce. Low-energy model studies suggest $^{238}$U may have a modest octupole…

Nuclear Theory · Physics 2025-05-15 Chunjian Zhang , Jiangyong Jia , Jinhui Chen , Chun Shen , Lumeng Liu

In heavy ion collisions, elliptic flow $v_2$ and radial flow, characterized by event-wise average transverse momentum $[p_{\mathrm{T}}]$, are related to the shape and size of the overlap region, which are sensitive to the shape of colliding…

Nuclear Theory · Physics 2022-01-19 Jiangyong Jia , Shengli Huang , Chunjian Zhang

In the hydrodynamical description of heavy-ion collisions, the elliptic flow $\mathrm{v_{2}}$ and triangular flow $\mathrm{v_{3}}$ are sensitive to the quadrupole deformation $\mathrm{\beta_{2}}$ of the colliding nuclei. We produce…

High Energy Physics - Phenomenology · Physics 2023-12-12 Saraswati Pandey , B. K. Singh

In relativistic heavy-ion collisions, the radial flow of the fireball, usually characterized by transverse momentum spectra of final-state particles, encodes essential information about the hot and dense nuclear matter created in the…

Nuclear Theory · Physics 2026-02-05 Jie Zhu , Xiang-Yu Wu , Guang-You Qin

Recent studies have shown that the shape and radial profile of the colliding nuclei have strong influences on the initial condition of the heavy ion collisions and the subsequent development of the anisotropic flow. Using A Multi-Phase…

Nuclear Theory · Physics 2023-11-29 Zhiyong Lu , Mingrui Zhao , Jiangyong Jia , You Zhou

In this letter, we present the study of the role of octupole deformation in non-spherical nuclei in most-central Pb--Pb collisions at the LHC energy regime. The sensitivity of octupole deformation $\beta_3$ to the QGP observables is…

High Energy Physics - Phenomenology · Physics 2025-05-07 Saraswati Pandey , B. K. Singh

The two neutrino and neutrinoless double beta decay of $^{94,96}$Zr, $^{98,100}$Mo, $^{104}$Ru, $^{110}$Pd, $^{128,130}$Te and $^{150}$Nd isotopes for the $0^{+}\to 0^{+}$ transition is studied within the PHFB framework along with an…

Nuclear Theory · Physics 2009-08-03 R. Chandra , K. Chaturvedi , P. K. Rath , P. K. Raina , J. G. Hirsch

This work establishes a deep connection between two seemingly distant branches of nuclear physics: nuclear structure and relativistic heavy-ion collisions. At the heart of this connection is the recent discovery made at particle colliders…

Nuclear Theory · Physics 2021-01-05 Giuliano Giacalone

In the hydrodynamic model description of heavy ion collisions, the final-state anisotropic flow $v_n$ are linearly related to the strength of the multi-pole shape of the distribution of nucleons in the transverse plane $\varepsilon_n$,…

Nuclear Theory · Physics 2022-01-19 Jiangyong Jia

Nuclear deformation effects on the binding energies in heavy ions are investigated. Approximate formulas for the nuclear-size correction and the isotope shift for deformed nuclei are derived. Combined with direct numerical evaluations,…

In the Ge-Sr mass region, isotopes with neutron number $N \leq 40$ are known to feature rapid shape changes with both nucleon number and angular momentum. To gain new insights into their structure, inelastic proton scattering experiments in…

We study fusion reactions of $^{16}$O with $^{154}$Sm, $^{186}$W and $^{238}$U at sub-barrier energies by a coupled-channels framework. We focus especially on the effects of $\beta_{6}$ deformation and low-lying vibrational excitations of…

Nuclear Theory · Physics 2009-10-31 Tamanna Rumin , Kouichi Hagino , Noboru Takigawa

Relativistic heavy ion collisions provide a unique opportunity to probe the nuclear structure by taking an instantaneous snapshot of the colliding nuclei and converting it into momentum anisotropies of final emitted hadrons. A long-standing…

Nuclear Theory · Physics 2025-05-20 Hao-jie Xu , Duoduo Xu , Shujun Zhao , Wenbin Zhao , Huichao Song , Fuqiang Wang
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