Mr
Junjie Zhang
(university of science and technology of China)
09/10/2019, 18:00
S5分会场：Poster
We propose a microscopic description for the polarization from the first principle through the spin-orbit coupling in particle collisions. The model is different from previous ones based on local equilibrium assumptions for the spin degree of freedom. It is based on scatterings of particles as wave packets, an effective method to deal with particle scatterings at specified impact parameters....
仁杰 王
(University of Science and Technology of China)
09/10/2019, 18:00
S5分会场：Poster
We study relativistic magnetohydrodynamics with longitudinal boost invariance in the presence of chiral magnetic effects and finite electric conductivity. With initial magnetic fields parallel or anti-paralleltoelectricfields, wederivetheanalyticsolutionsofelectromagneticfieldsandthechiral number and energy density in an expansion of several parameters determined by initial conditions. The...
Dr
Wen-Jie Xie
(Yuncheng University)
09/10/2019, 18:00
S5分会场：Poster
Using the representative $R_{1.4}$ data in the literature, we infer the
high-density nuclear symmetry energy $E_{\rm{sym}}(\rho)$ and the associated nucleon specific energy $E_0(\rho)$ in symmetric nuclear matter (SNM) within a Bayesian statistical approach using an explicitly isospin-dependent parametric Equation of State (EOS) for nucleonic matter under several general conditions required...
Yifei Niu
(L)
09/10/2019, 18:00
S5分会场：Poster
Nuclear β-decay half-lives set the time scale of the rapid neutron capture process (r-process), and hence are important for understanding the origin of heavy elements in the universe. In β-decay process, the dominant transition is the Gamow-Teller (GT) transition.
As a widely used microscopic model for GT and β-decay study, quasiparticle random-phase approximation (QRPA) has its...
Dr
振烟 陆
(ITP, CAS)
09/10/2019, 18:00
S5分会场：Poster
We compute the effect of the chiral phase transition of QCD on the axion mass and self-coupling; the coupling of the axion to the quarks at finite temperature is described within the Nambu–Jona-Lasinio model. We find that the axion mass decreases with temperature, following the response of the topological susceptibility, in agreement with previous results obtained within chiral perturbation...
Dr
Huan Chen
(China University of Geosciences (Wuhan))
09/10/2019, 18:00
S5分会场：Poster
We calculate the chiral condensate in cold quark matter in Dyson-Schwinger equation approach of QCD. Different ansatz for the quark-gluon vertex and the effective interactions are investigated. Then, using a model-independent formula from the Feynmann-Hellmann theorem, we evaluate the pion-nucleon sigma term. We obtain the value of sigma term about 60 MeV, which weakly depends on our different...
Mr
naibo zhang
(shandong university, weihai)
09/10/2019, 18:00
S5分会场：Poster
By numerically inverting the Tolman-Oppenheimer-Volkov (TOV) equation using an explicitly isospin-dependent parametric Equation of State (EOS) of dense neutron-rich nucleonic matter, a restricted EOS parameter space is established using observational constraints on the radius, maximum mass, tidal deformability and causality condition of neutron stars (NSs). Rather robust upper and lower...
Dr
Niu Wan
(Nanjing University)
09/10/2019, 18:00
S5分会场：Poster
By using the unitary correlation operator and high-momentum pair methods, the nuclear equations of state for pure neutron and symmetric nuclear matter are calculated with bare Argonne V4’ (AV4’) nucleon-nucleon (NN) interactions. The nuclear matter is described in a finite size of cubic box with finite magic mass numbers under periodic boundary condition. The unitary correlation operator...
Ms
YUNFENG XIAO
(Central China Normal University)
09/10/2019, 18:00
S5分会场：Poster
- **Background:** In nuclear detection, researchers can extract nuclear information by analyzing the narrow pulse signal of the output of the nuclear detector. A scintillator detector which consisting of a scintillator and a photomultiplier tube is one of the most widely used ionizing radiation detectors. When the scintillator absorbs the gamma rays emitted by the radioactive elements, the...
Zhen LIU
(University of Science and Technology of China)
09/10/2019, 18:00
S5分会场：Poster
Quarkonium production is an important tool to study the properties of the Quark-Gluon Plasma (QGP) formed in relativistic heavy-ion collisions. In particular, suppression of the J/$\psi$ meson production due to the color-screening effect was proposed as a direct evidence of the QGP formation. However, interpretation of the J/$\psi$ suppression in heavy-ion collisions requires knowledge of cold...
Mr
Hong-Zhong Wu
(USTC)
09/10/2019, 18:00
S5分会场：Poster
We revisit the azimuthal angle dependence of the local spin polarization of hyperons in heavy-ion collisions at 200 GeV in the framework of the (3+1)D viscous hydrodynamic model CLVisc. Two different initial conditions are considered in our simulation: the optical Glauber initial condition without initial orbital angular momentum and the AMPT initial condition with an initial orbital angular...
Peng Liu
(S)
09/10/2019, 18:00
S5分会场：Poster
The Hyperon-Nucleon (YN) interactions play an important role in understanding the strong interaction. It is suggested that alternative YN couplings can be a possible solution to the recent observations of neutron star exceeding two solar masses, the so-called ``hyperon puzzle". A precise measurement of binding energies of hypertriton and antihypertriton can enrich our knowledge on YN...
yingjie (for STAR collaboration) zhou
(Central China Normal University)
09/10/2019, 18:00
S5分会场：Poster
Yingjie Zhou for the STAR Collaboration
Institute of Particle Physics, Central China Normal University, China
Heavy quarks are predominantly produced at early stages of relativistic heavy-ion collisions before the creation of the deconfined QCD medium, known as the Quark-Gluon Plasma (QGP). Heavy quarks subsequently interact with the QGP throughout its whole evolution, and thus are...
Prof.
Jialun Ping
(Nanjing Normal University)
09/10/2019, 18:00
S5分会场：Poster
The unquenched quark model for meson is explored in the present work. The quark-pair creation operator, which mix the two-quark and four-quark components, from 3P0 model is modified by considering effects of the created quark pair's energy and the separation between the created quark pair and the valence quark pair. All the wave functions needed are obtained by solving the corresponding...
Dr
wendi Chen
(Graduate School of China Academy of Engineering Physics)
09/10/2019, 18:00
S5分会场：Poster
The microscopic optical potentials for Li isotopes(A=6,7,8) without free parameter are obtained by folding the microscopic optical potentials of their internal nucleons with density distributions generated from corresponding internal wave functions. An isospin-dependent nucleon microscopic optical potential based on the Skyrme nucleon-nucleon effective interaction is used as the nucleon...
Dr
丹阳 庞
(北京航空航天大学)
09/10/2019, 18:00
S5分会场：Poster
n+d 的反应截面（弹性散射和破裂反应）是重要的核反应数据。Faddeev-AGS方程是描述 n+d 反应的最好的理论工具。我们介绍利用 Faddeev-AGS 方程对 n+d 反应的计算及其结果。
Dr
Danyang Pang
(Beihang University)
09/10/2019, 18:00
S5分会场：Poster
n+d 的反应截面（弹性散射和破裂反应）是重要的核反应数据。Faddeev-AGS方程是描述 n+d 反应的最好的理论工具。我们介绍利用 Faddeev-AGS 方程对 n+d 反应的计算及其结果。
Rui Wang
(Shanghai Institute of applied physics)
09/10/2019, 18:00
S5分会场：Poster
The spreading width of nuclear giant dipole resonance in Pb208 is studied in the Boltzmann-Uehling-Uhlenbeck transport theory with a lattice Hamiltonian method.
The obtained spreading width shows a strong dependence on the in-medium nucleon-nucleon elastic scattering cross sections, which suggests the spreading width of nuclear giant dipole resonance as a novel probe of the medium correction...
Dr
Gen Zhang
(Beijing Normal University)
09/10/2019, 18:00
S5分会场：Poster
The production of neutron-rich Rf isotopes in multinucleon transfer reactions is investigated using the dinuclear system model with GEMINI++ code. The reaction 238U + 252Cf is more advantageous to generate neutron-rich Rf isotopes than 238U + 249Bk and 238U + 248Cf, because 252Cf has a larger N/Z ratio and neutron number. The influence of incident angular momentum on the production cross...
Ms
Yanchun Ding
(CCNU)
09/10/2019, 18:00
S5分会场：Poster
In pp collisions at LHC energies, the production of heavy quarks proceeds dominantly from the hard scattering of two gluons. These quarks then hadronise in either open heavy-flavour hadrons or quarkonia (e.g. J/$\psi$, $\Upsilon$). The study of quarkonium production as a function of the charged-particle multiplicity, therefore, naturally links soft and hard processes that occur in the...
Nihar Sahoo
(Shandong University)
09/10/2019, 18:00
S5分会场：Poster
Jet in heavy-ion collisions is considered as a self-generated tomographic probe to study the Quark-Gluon Plasma (QGP) created at the Relativistic Heavy Ion Collider, in BNL. Jet is quenched in the QGP relative to that in a vacuum, and this produces very striking evidence of the QGP. Recently, different new jet measurements have been performed both in the STAR and PHENIX experiments. This...
Ziyang Li
(University of Science and Technology of China)
09/10/2019, 18:00
S5分会场：Poster
In non-central relativistic heavy ion collisions, the created matter possesses a large initial orbital angular momentum. Particles produced in the collisions could be polarized globally in the direction of the orbital angular momentum due to spin-orbit coupling. The measurement of vector mesons K* and $\phi$ can provide information of the large vorticity of the hot, dense medium created in...
Dr
Chen Liu
(Shandong University)
09/10/2019, 18:00
S5分会场：Poster
Spontaneous symmetry breaking is a fundamental concept in nature. As a many-body quantum system, the atomic nucleus carries a wealth of information on fundamental symmetries and symmetry breaking. As one example, chiral symmetry breaking in atomic nuclei has attracted considerable attention and intensive discussion since it was first predicted by Frauendorf and Meng [1]. They pointed out that,...
Mr
Zhilei She
(China University of Geosciences(Wuhan))
09/10/2019, 18:00
S5分会场：Poster
The nuclear modification factors ($R_{AA}$) of $\pi^{\pm}, p(\bar p)$, and $d(\bar d)$ with $|y|<0.5, p<6.0$ GeV/c in peripheral (40-60%) and central (0-10%) lead-lead collisions at $\sqrt {s_{NN}}$ =2.76 TeV have been studied using the parton and hadron cascade ( PACIAE) model plus the dynamically constrained phase-space coalescence ( DCPC ) model. It is found that the distribution of...
Dr
Gaolong Zhang
(BUAA)
09/10/2019, 18:00
S5分会场：Poster
G. X. Zhang1, S. P. Hu2, G. L. Zhang1, H. Q. Zhang3, C. J. Lin3, J. Lubian4, W. W. Qu5, Z. Huang1, M. L. Wang1, Y. J. Yao1, X. D. Su1, X. G. Wu3, C. B. Li3, L. Yang3, N. R. Ma3, D. Testov6, D. Mengoni6, J. J. Valiente-Dobon7, A. Goasduff6, D. Bazzazzo6, H. B. Sun2, Y. Zheng3
1 School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
2 School of Physics and...
Ms
Xiujun Li
(USTC)
09/10/2019, 18:00
S5分会场：Poster
Specific heat is a thermodynamic quantity that characterizes the equation of state of the system. For a system undergoing phase transition, the specific heat, $C_{V}$, is expected to diverge at the critical point. Temperature fluctuation of the system provides an estimation of $C_{V}$. The specific heat can be extracted from event-by-event temperature fluctuation. Thus the variation of thermal...
Dr
Huiming JIA
(China Institute of Atomic Energy)
09/10/2019, 18:00
S5分会场：Poster
In near-barrier fusion reactions with heavy-ions, the coupling effect of the positive Q-value neutron transfers (PQNT) is still a complex and unsolved problem. For studying this effect, the fusion excitation functions of the typical systems, such as 32S+90,94,96Zr, were measured by using an electrostatic deflector setup at CIAE. In this talk, the recent experimental results measured at CIAE...
Prof.
Gang Chen
(Physical Department, China University of Geosciences)
, Mr
飞 李
(Physical Department, China University of Geosicences (WuHan))
09/10/2019, 18:00
S5分会场：Poster
Shannon information entropy provides an effective tool to study the evolution process in relativistic heavy-ion collisions. Three types of entropy production were studied in relativistic nuclear collisions by using a multiphase transport mode. The linear growth stage of Thermodynamic entropy seems to indicate the transition of the collision system from quark-gluon plasma to hadronic gas. The...
Dr
Xian-Gai Deng
(Fudan University)
09/10/2019, 18:00
S5分会场：Poster
We simulated nuclear matter in a periodic box with an improved quantum molecular dynamic (ImQMD) model and extracted shear viscosity using the Gaussian thermostated SLLOD algorithm. As the mean filed is switched on, fragments forming at low density and low temperature, shear viscosity is declined. And also a slope of the shear viscosity, the ratio of the number of free nucleons to that of the...
rengang zhang
(Wuhan University of science and technology)
,
xingzhong cao
(Institute of High Energy Physics, CAS))
09/10/2019, 18:00
S5分会场：Poster
Zinc sulfide (ZnS) is one of the first semiconductors discovered. It has the greatest band gap among the II-VI compound semiconducting materials. With the good optoelectronic properties, ZnS has been widely used in many optoelectronic devices. The preparation and physics of good quality ZnS thin films has always been one of the focuses of the research on the wide band gap material. In the...
Mr
Wujie Li
(Shanghai Institute of Applied Physics, Chinese Academy of Sciences)
, Prof.
Yugang Ma
(Shanghai Institute of Applied Physics, Chinese Academy of Sciences)
09/10/2019, 18:00
S5分会场：Poster
The neutron yield and the proton one in $^{12}$C(d,n)$^{13}$N and $^{12}C(d,p)^{13}$C have been measured respectively from 0.6 MeV to 3 MeV using a 4-MeV electro static accelerator to generate deuteron beam to bombard the thick carbon target. The neutrons are detected at 0 degree, 24 degree, 48 degree and the protons at 135 degree in the lab frame. The ratios of the neutron yield to the proton...
小华 李
(å)
09/10/2019, 18:00
S5分会场：Poster
1、The theoretical models of proton emission and α decay
2、The Gamow-like model and screened electrostatic effect
3、Our works
4、Summary
建东 张
(Nanjing University of Aeronautics and Astronautics)
09/10/2019, 18:00
S5分会场：Poster
Abstract: Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a very important tool in the characterization of various materials, but the use of ToF-SIMS in nuclear field is still not fully developed. In this work, we introduce several studies focusing on the spectra, depth profiles and elemental images of the nuclear fusion materials using ToF-SIMS. In the first part, Hydrogen (H)...
Prof.
Zhi-Hui Guo
(Hebei Normal University)
09/10/2019, 18:00
S5分会场：Poster
In this talk, I will present our recent study on the thermal properties of the lowest multiplet of the QCD light-flavor scalar resonances, including the f0(500)/σ, K∗0(700)/κ, f0(980) and a0(980), in the framework of unitarized U(3) chiral perturbation theory.
Mr
厚军 何
(东华理工大学)
09/10/2019, 18:00
S5分会场：Poster
伽玛射线康普顿散射谱与其入射能量、注量率、散射体的物质成分以及几何布置等因素相关，研究伽玛射线在物质中的散射效应，对伽玛射线屏蔽及其安全防护等具有重要的意义。为研究伽玛射线散射谱的影响因素，使用Cs-137放射源及闪烁体探测器，在工作状态一定的情况下，分析反散射峰的计数率与反散射物质的原子序数、厚度及距离的相关性。
Dr
Xiaoliang Zou
(Institute of Nuclear Energy Safety Technology, CAS)
09/10/2019, 18:00
S5分会场：Poster
核能作为一种清洁能源，在全球能源结构中需要发挥越来越重要的作用。然而，核能的大规模发展也面临一些问题，如核安全问题、核废料处置、核燃料短缺等变得日益突出。因此，中国科学院核能安全技术研究所提出了一种基于铅合金冷却反应堆的新型外中子源驱动核能系统（CLEAR-A，Advanced External Neutron Source Driven Nuclear Energy System...
Dr
Qiwei Zhang
(China Institute of Atomic Energy)
09/10/2019, 18:00
S5分会场：Poster
中子俘获反应截面数据在核天体物理研究、核反应堆设计与核能开发利用中具有非常重要的意义。中国原子能科学研究院已经建造完成了我国第一套的全吸收型BaF2探测装置(Gamma Total Absorption Facility, GTAF)，采用瞬发γ测量法，精确测量中子俘获反应截面。中子源是利用HI-13串列加速器产生的脉冲化质子束，通过7Li(p, n)7Be反应建立的。为了有效降低周围环境材料和探测器上产生的散射中子本底，约束中子束流的形状，设计了中子屏蔽准直体。使用MCNP 模拟程序模拟计算了中子和γ射线在几种主要的屏蔽材料中的输运过程，并通过模拟计算确定了屏蔽准直体的加工材料和几何尺寸。为了吸收待测样品产生的散射中子，需要在探测器球壳内部放置中子吸收体，同时吸收体材料还要尽可能的减少对γ能谱的影响。通过MCNP的模拟结果得到了比较理想的设计方案，满足在线开展中子俘获反应截面测量的实验要求。
Mr
丙岩 刘
(中国科学院近代物理研究所)
09/10/2019, 18:00
S5分会场：Poster
在ADS系统的优化设计中，计算程序结合可靠的核反应理论模型对中高能中子诱发核反应进行计算具有重要的意义。同时，铁作为一种重要的结构材料，在核反应堆、加速器等核设施中被大量使用。本工作利用TALYS程序和GEANT4程序结合不同的核反应理论模型计算了中高能中子轰击薄铁靶在不同出射角度的次级中子双微分截面，并与现有实验数据进行了对比。总体来看，TALYS程序和GEANT4程序结合可靠的核反应理论模型的计算结果可以较好地再现实验数据。
莹 崔
(China Institute of Atomic Energy)
09/10/2019, 18:00
S5分会场：Poster
近十年来，对于FOPI 的发表的束流能量为0.4-1.2 GeV的Au+Au碰撞产生的pion产额以及$\pi^-/\pi^+$ 之比的实验数据的理论分析表明：目前利用$\pi^-/\pi^+$的数据结合输运模型比较给出的对称能约束存在很大的分歧和争议。这促使人们从实验和理论两个方面再次进行深入的研究和探索。理论方面，则需要进一步的理解同位旋相关的输运模型中$\pi$产生的各个环节，如介质中 $\Delta$、...
Dr
小林 涂
(中科院近代物理研究所)
09/10/2019, 18:00
S5分会场：Poster
轻离子诱发的低动量转移反应在核结构和核天体物理研究中起着重要的作用。基于兰州重离子冷却储存环，利用气体内靶，可以解决放射性束线上开展相关反应时低动量粒子的探测问题，使得轻离子诱发的低动量转移反应研究成为可能。近年来，为了研发谱仪，依托兰州重离子冷却储存环，研发了超高真空适用耐高温烘烤的硅条探测系统，开展了CSRe上首次质子弹性散射诱发的58Ni稳定核素的低动量转移反应实验。利用实验数据，开展了光学势的相关研究，提取了核物质密度分布，展示了兰州重离子冷却储存环加速器开展轻离子诱发的低动量转移反应的能力。
Dr
Qinghua He
(Nanjing University of Aeronautics and Astronautics)
09/10/2019, 18:00
S5分会场：Poster
基于全同粒子间强度关联（HBT效应）测量QCD非微扰能区超短寿命重子共振态时空性质依然是一个挑战，这是因为目前还没有适用于低能区低末态粒子数粒子关联效应的有效观测方法。本工作尝试用HBT关联测量重子共振态$\Delta$(1232)的尺寸，实验数据来自于日本东北大学电子光理学研究中心开展的FOREST实验中的光生反应$\gamma p \to p \pi^0 \pi^0$实验结果（入射光子能量约为$1-1.15$ GeV）。为此开发了一种适用于低能区低末态粒子数HBT观测用的事件混合方法，通过引入额外的限制条件来抑制非强度关联效应及能量动量守恒带来的干扰。同时也建立了从$\gamma p \to \Delta \pi^0 \to p \pi^0 \pi^0$反应中末态粒子$\pi^0 \pi^0$关联效应中提取$\Delta$共振态半径信息的观测模型。目前已得到$\pi^0...
昂扬 于
(Normal University, Beijing, China)
09/10/2019, 18:00
S5分会场：Poster
于昂扬
Normal University, Beijing, China
自1964年夸克模型提出以来，寻找自由夸克的实验工作尚无结果。量子色动力学理论目前也还无法直接证明夸克禁闭的存在，夸克禁闭问题时至今日仍然是当代物理学的前沿难题。非拓扑孤立子模型在描写强子静态性质方面取得了极大的成功。[1]该模型认为在强子外部夸克的质量远远大于强子的质量,这样就使得在强子外部产生一个夸克要比在强子内部产生一个夸克需要多得多的能量,这就提供了一种夸克禁闭的机制。[2]本工作从该模型出发，得到了孤立子解，计算结果显示：在强子内部夸克质量为零(m=O)；而在强子边界之外,夸克的质量远远大于强子内部夸克的质量，因此，这就自然地导致了夸克禁闭的发生。
参考文献:
[1] R. Goldflam and L. Wilets, Phys. Rev. D,...
睿巨 郭
(山东大学（威海）)
09/10/2019, 18:00
S5分会场：Poster
在A~80质量区的奇奇核$^{78,80,82}$Br中已经观测到了手征双带或多重手征带 [1,2,3],这证明这个区域的原子核普遍存在三轴形变。具有三轴形变的原子核的另外一个特征是存在摇摆激发带 [4,5,6]，但是目前还没有实验发现手征带和摇摆激发共存的现象。此外这个区域的$^{73,78}$Br还观测到了正负宇称带间的八极关联效应 [7，1]。基于A~80质量区这些已经观测到或还未观测到但可能存在的丰富的原子核形状的相关现象，我们对这个区域的奇奇核$^{74}$Br开展了实验研究。
我们在南非iThemba实验室利用$^{58}$Ni($^{19}$F,2pn)$^{74}$Br反应开展了$^{74}$Br高自旋态的在束γ谱学实验。实验获得了约$3\times 10 ^9$个二重符合事件以及$4\times...
Ms
Wenqing Du
(Graduate School of China Academy of Engineering Physics)
09/10/2019, 18:00
S5分会场：Poster
本工作完成了快中子与$^{208}$Pb反应的理论计算。对于双幻数核$^{208}$Pb采用了EMPIRE3.2程序结合最新发展的同时适用于散射态和单粒子束缚态计算的球形色散光学势。此光学势可同时实现中子与$^{208}$Pb的散射数据计算，并利用其实部作为壳模型势给出对单粒子束缚能级的拟合。计算中，应用DWBA方法计算非弹性散射直接部分，激子模型计算预平衡机制，带宽度涨落的Hauser-Feshbach理论计算复合核发射，同时考察多种能级密度模型的影响。理论计算结果与各类实验数据进行了比对分析。
Mr
Weicheng Li
(ECUT)
09/10/2019, 18:00
S5分会场：Poster
在研究月表质子诱发伽马辐射场中，质子反应截面是关键参数之一。其中R.K.Tripathi公式可以准确的计算单一核素的质子反应截面，但是对于混合物并没有给出明确的计算方法。本文采用三种方法不同的方法对R.K.Tripathi模型进行修正，将其应用于计算月表典型岩石的质子反应截面，并与Geant4模拟计算结果进行对比。结果表明，由均方根原子序数法，平均原子序数法，截面混合法得到的50-100MeV质子反应截面与Geant4模拟结果均有较好的符合，均方根原子序数法误差为5.61%-14.7%，平均原子序数法误差为1.39%-7.29%，截面混合法误差为2.69%-6.78%。其中在50-80MeV时使用平均原子序数法修正效果较好，而在80-100MeV截面混合法修正效果较好。
Mr
LuYao Tong
(School of Science, Huzhou Teachers College, Huzhou 313000, China)
09/10/2019, 18:00
S5分会场：Poster
在核介质中核子的有效质量随核介质密度、动量及同位旋的变化情况是人们关心的话题。重离子碰撞可以用来研究核介质中核子的有效质量。本报告在极端相对论量子分子动力学(UrQMD)模型中引入了同位旋依赖的动量相关势，研究了入射能量为每核子0.09 GeV到1.5 GeV的金金碰撞中的集体流。计算结果能够很好的再现最新的FOPI合作组的关于质子的椭圆流随入射能量变化的实验数据。同时发现随着入射能量的增高，核子有效质量的劈裂（中子有效质量和质子有效质量之差）对于质子中子的椭圆流差的影响逐渐减小。相比于对称能的影响，核子有效质量劈裂对于质子中子的椭圆流差的影响较小。
强华 吴
(清华大学)
09/10/2019, 18:00
S5分会场：Poster
到目前为止,关于核子-核子碰撞已经做了大量的实验与理论分析工作,不过在低能区域(小于50 MeV),如果将理论分析值与实验数据相比，差别还是很大的。相对较准确的是ENDF-VIII的P(n,n)P评价值，它是美国人用R-矩阵理论分析（EDA）得到的，不过在最关键的14 MeV 处，理论分析值与实验数据的差别还是很大。关于N(n,n)N，美国人是将用微观光学势分析得到的结果输入R-矩阵理论分析（EDA）得到的，具体细节没有发表。美国人也用R-矩阵理论分析（EDA）分析了P(p,p)P实验数据，具体细节也没有发表。
关于中子-中子碰撞截面，由于难以得到中子靶，不可能进行实际测量，目前只有一个用间接测量得到的热中子散射长度。关于质子-质子碰撞截面（去除长程库仑作用），在输运理论计算中有重要应用价值，不过在小于50...
长波 符
(复旦大学现代物理研究所)
09/10/2019, 18:00
S5分会场：Poster
随着激光技术的进步，激光强度在飞速提高。近年来，利用高强度激光诱发的核事件正逐步被深入研究和探索，从而诞生了一门新的学科----激光核物理。在超强激光光场所产生的新的极端环境，有望用来研究常规实验手段无法企及的核物理相关基础和应用问题。如：模拟大爆炸环境，研究等离子体条件下核反应；反应堆废料相关核素的嬗变；激光生成医用超短寿命同位素；以及产生伽马激光等等。本报告将对激光核物理现状进行简单综述，并介绍本实验组近期开展的相关工作。包括利用“激光等离子体对撞”的方法，研究低能核天体相关核反应，D+D and D+Li7等. 首次在等离子体环境下测量了D+Li7的S-factor. 此外将介绍利用激光产生同质异能素，成功利用激光库伦爆炸法，实现了纳米颗粒中Kr83的同质异能态产生。从而为进一步探索利用强激光产生伽马激光的新可能方法。
1. X.P.Zhang et al.,...
Mr
JiaJie Shen
(Shanghai Maritime University)
09/10/2019, 18:00
S5分会场：Poster
随机两体相互作用理论是研究“复杂原子核中简单规则的起源问题”的重要途径。过去许多研究工作聚焦于随机相互作用下偶偶核基态零自旋正宇称占优现象，而关于随机相互作用原子核基带在非正规序情况下的低激发态方面研究很少。通过研究非正规序基带的随机两体系综低激发态讨论随即相互作用下的原子核转动行为的鲁棒性，主要包括:研究偶偶核非零自旋基态下低激发态统计性质，包括基带能级次序、能级间隔分布、集体运动模式以及电磁性质，分析其与剩余相互作用的关联；（2）研究真实原子核在随机微扰下非集体转动特性和电磁性质的鲁棒性。
