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相关论文: Parameterization of Deformed Nuclei for Glauber Mo…

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In extracting deformation parameters from multipole moments for deformed nuclei, one commonly uses the formulas which are based on a sharp-cut density distribution. We discuss a possible ambiguity for this procedure and clarify the role of…

核理论 · 物理学 2009-11-11 K. Hagino , N. W. Lwin , M. Yamagami

The deformation of heavy nuclei leaves characteristic imprints on the initial conditions of relativistic heavy-ion collisions. However, event-by-event fluctuations make the quantitative extraction of this information challenging. This study…

核理论 · 物理学 2026-03-31 Jun-Qi Tao , Yang Liu , Yu Sha , Xiang Fan , Yan-Sheng Tu , Kai Zhou , Hua Zheng , Ben-Wei Zhang

Background: Nuclear deformation provides a crucial characteristic of nuclear structure. Conventionally, the quadrupole deformation length of a nucleus, $\delta_{2}$, has often been determined based on a macroscopic model through a deformed…

In heavy-ion phenomenology, the nucleon density distribution in colliding nuclei is commonly described by a two-parameter Woods-Saxon (WS) distribution. However, this approach overlooks the detailed radial structure in the density…

核理论 · 物理学 2024-10-10 Zhengxi Yan , Jun Xu , Jiangyong Jia

Most atomic nuclei are deformed with a quadrupole shape described by its overall strength $\beta_2$ and triaxiality $\gamma$. The deformation can be accessed in high-energy heavy-ion collisions by measuring the collective flow response of…

核理论 · 物理学 2022-05-04 Jiangyong Jia

We analyze the nearest neighbor spacing distributions of low-lying 2+ levels of even-even nuclei. We grouped the nuclei into classes defined by the quadrupole deformation parameter (Beta2). We calculate the nearest neighbor spacing…

核理论 · 物理学 2011-02-14 A. Al-Sayed

We have investigated the performance of anisotropic flows $\langle v_n^2 \rangle$, transverse momentum fluctuations $\langle \delta p_T^2 \rangle $, and their correlations $\langle v_n^2 \delta p_T \rangle$ in central collisions at…

核理论 · 物理学 2024-09-23 Hai-Cheng Wang , Song-Jie Li , Lu-Meng Liu , Jun Xu , Zhong-Zhou Ren

The radii of nucleon distribution, bulk density, and neutron skin in nuclei beyond the \beta-stability line are studied within the direct variational method. We evaluate the partial equation of state of finite nuclei and demonstrate that…

核理论 · 物理学 2012-03-22 V. M. Kolomietz , S. V. Lukyanov , A. I. Sanzhur

In the density distribution of a deformed target-nucleus, the spherical $\lambda = 0$ and the deformed $\lambda = 2$ parts were considered. On this basis, the corresponding potential parts $U_0$ and $U^{(2)}_{int}$ of a double -folding…

We have investigated the $\rho^{0}$ meson photoproduction in ultraperipheral isobaric collisions between $_{44}^{96}\textrm{Ru}+_{44}^{96}\textrm{Ru}$ and $_{40}^{96}\textrm{Zr}+_{40}^{96}\textrm{Zr}$ at $\sqrt{s_{NN}}=200$ GeV, employing…

高能物理 - 唯象学 · 物理学 2025-04-22 Shuo Lin , Jin-Yu Hu , Hao-Jie Xu , Shi Pu , Qun Wang

The second-order moment of the nuclear charge density($R^2_c$) is dominated by the mean square radius(msr) of the point proton distribution($R_p^2$), while the fourth-order moment($Q^4_c$) depends on the msr of the point neutron…

核理论 · 物理学 2020-09-03 Haruki Kurasawa , Toshimi Suda , Toshio Suzuki

The systematic study of the correlation between the experimental giant dipole resonance (GDR) width and the average deformation <\beta> of the nucleus at finite excitation is presented for the mass region A ~ 59 to 208. We show that the…

The spatial distribution of interactions in high energy collisions of heavy nuclei is discussed using the wounded nucleon, binary collision, hard sphere, and colliding disk parameterizations of interaction densities. The mean radius, its…

核实验 · 物理学 2007-05-23 Peter Jacobs , Glenn Cooper

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…

核理论 · 物理学 2022-01-19 Jiangyong Jia , Shengli Huang , Chunjian Zhang

Refined calculations of the radial mismatch correction, $\delta_{C2}$, to superallowed $0^+\rightarrow0^+$ nuclear $\beta$ decay are performed using the shell model with realistic Woods-Saxon radial wave functions. Two important…

核理论 · 物理学 2025-08-26 L. Xayavong , N. A. Smirnova , F. Nowacki

We present the angular distribution of electrons knocked out from an atom in a fast charge particle collision at small momentum transfer. It is determined not only by dipole but also by quadrupole transitions, the contribution of which can…

原子物理 · 物理学 2015-06-03 M. Ya. Amusia , L. V. Chernysheva , E. Z. Liverts

We study theoretically how we can determine the neutron density distributions of unstable nuclei from proton elastic scattering. We apply the relativistic impulse model to study the sensitivities of the observables to the density…

核理论 · 物理学 2015-06-26 K. Kaki , S. Hirenzaki

Recent measurements for fusion cross section at energies around the Coulomb barrier have systematically indicated a significant deviation of fusion cross sections from a prediction of double-folding model. It has been argued that the…

核理论 · 物理学 2009-11-11 K. Hagino , K. Washiyama

Background: Proton elastic scattering at intermediate energy is widely employed as a tool for determining the matter radius of atomic nuclei. The sensitivity of the approach relies on high-resolution measurements at small scattering angles…

核理论 · 物理学 2025-07-22 J. C. Zamora

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 $\varepsilon_n$,…

核理论 · 物理学 2022-01-19 Jiangyong Jia
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