13th APCTP - BLTP JINR Joint Workshop "Modern Problems in Nuclear and Elementary Particle Physics"

Session

Modern problems in nuclear and elementary particle physics

15 Jul 2019, 09:30

International Conference Hall, Dubna, Russia

Conveners

Modern problems in nuclear and elementary particle physics

• Victor Voronov (Bogoliubov Laboratory of Theoretical Physics, JINR)

Modern problems in nuclear and elementary particle physics

• Rostislav Jolos (JINR BLTP)

Modern problems in nuclear and elementary particle physics

• Hee-Jung Lee (Chungbuk National University)

Modern problems in nuclear and elementary particle physics

• Yubing Dong (Institute of High Energy Physics, Chinese Academy of Sciences, P. R. China)

Modern problems in nuclear and elementary particle physics

• Myung-Ki Cheoun (Soongsil University)

Modern problems in nuclear and elementary particle physics

• Oleg Teryaev (JINR)

Modern problems in nuclear and elementary particle physics

• Andrey Vdovin (BLTP JINR)

Modern problems in nuclear and elementary particle physics

• Furong Xu (Peking University)

Modern problems in nuclear and elementary particle physics

• Andrej Arbuzov (BLTP JINR)

Modern problems in nuclear and elementary particle physics

• Chang-Hwan Lee (Pusan National University)

Modern problems in nuclear and elementary particle physics

• Seung-il Nam (Pukyong National University)

Modern problems in nuclear and elementary particle physics

• Arkadiy Taranenko (NRNU MEPhI)

Modern problems in nuclear and elementary particle physics

• Leonid Kaptari (Joint Institute for Nuclear Research, BLTPh)

Modern problems in nuclear and elementary particle physics

• Victor Kim (PNPI NRC KI, Gatchina & SPbPU, St. Petersburg)

Modern problems in nuclear and elementary particle physics

• Yongseok Oh (Kyungpook National University)

49. Shape coexistance in nuclei

Prof. Rostislav Jolos (JINR BLTP)

15/07/2019, 09:30

28. Study of nuclear structure with a generalized Skyrme functional

Prof. Yongseok Oh (Kyungpook National University)

15/07/2019, 10:00

In the framework of the KIDS generalized energy density functional (EDF), the nuclear equation of state (EoS) is expressed as an expansion in powers of the Fermi momentum or the cubic root of the density. Although an optimal number of converging terms was obtained in specific cases of fits to empirical data and pseudodata, the degree of convergence remains to be examined not only for...

2. Electron Ion Collider Plan in China (EicC)

Prof. Xurong Chen (Institute of Modern Physics, Chinese Academy of Sciences)

15/07/2019, 10:30

Recently, an Electron-Ion Collider is proposed in China based on the High-Intensity Heavy Ion Accelerator Facility (HIAF) which is under construction. The EIC in China (EicC) consists of different phases with the capability of an upgrade for both beam energy and luminosity. The phase-I will start with e-p(nucleus) collision with 3.5 GeV (e) $\times$ 20 GeV (p) beam energy configuration. The...

67. Modeling of Physical Phenomena in Superconducting Nanostructures

Prof. Yury Shukrinov (BLTP, JINR)

15/07/2019, 11:30

We study the resonance phenomena in the intrinsic Josephson junctions shunted by LC-elements (L-inductance, C-capacitance). A realization of parametric resonance through the excitation of a longitudinal plasma wave, within the bias current interval corresponding to the resonance circuit branch, is demonstrated. It is found that the temporal dependence of the total voltage of the stack, and...

19. Scalar meson a${}_0$(980) as the mixed tetraquark within QCD sum rules

Prof. Hee-Jung Lee (Chungbuk National University)

15/07/2019, 12:00

Recently the tetraquark mixing framework has been proposed for the two light-meson nonets in the $J^{PC}=0^{++}$ channel, namely the light nonet composed by $a_0(980)$, $K_0^{\ast }(800)$, $f_0(500)$, $f_0(980)$, and the heavy nonet by $a_0(1450)$, $K_0^{\ast }(1430)$, $f_0(1370)$, $f_0(1500)$. According to this mixing framework, these two nonets are represented by the linear combination of the...

41. The Isoscalar Mesons and Exotic States in Light Front Holographic QCD

Dr Liping Zou (Institute of Modern Physics, CAS)

15/07/2019, 12:30

In this talk a quantitative analysis of the isoscalar bosonic states will be shown in the framework of supersymmetric light front holographic QCD. The spectroscopy of the $\eta$ and $h$ mesons can be well described if one additional mass parameter -- which corresponds to the hard breaking of chiral $U(1)$ symmetry in standard QCD -- is introduced. The mass difference of the $\eta$ and...

35. On $\rho$ meson generalized parton distributions

Prof. Yubing Dong (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China)

15/07/2019, 14:30

We study $\rho$ meson unpolarized and polarized generalized parton distribution functions (GPDs) based on a light-front constituent quark model[1,2]. The electromagnetic form factors as well as other low-energy observables of the $\rho$ meson are calculated and our results are compared to other calculations and possible experimental data. In our calculation, the contributions both from the...

47. Baryon Polarization in heavy-Ion Collisions

Oleg Teryaev (JINR)

15/07/2019, 15:00

The anomalous mechanism of transformation of orbital angular momentum to baryons' polarization is discussed. The comparison with thermodynamical mechaniam is outlined.

8. Interaction of a twisted Dirac particle with a magnetic field in high energy physics

Prof. Alexander Silenko (JINR, Dubna, Russia)

15/07/2019, 15:30

Interaction of a twisted Dirac particle with a magnetic field in high energy physics A.J. Silenko${}^{1,2,3}$, Pengming Zhang${}^{2,4}$, and Liping Zou${}^{2,4}$ 1. Joint Institute for Nuclear Research, Dubna 141980, Moscow region, Russia 2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3. Research Institute for Nuclear Problems, Belarusian...

5. B-splines and Bernstein basis polynomials

Prof. Sergey Ershov (JINR)

15/07/2019, 16:30

Computational methods based on a B-spline decomposition have found numerous applications in different fields of physics. The Cox - de Boor recurrence relation is a main tool for numerical calculations with B-splines. Here we derive the analytic representation of B-splines for an arbitrary knot sequence and order using decomposition on Bernstein basis polynomials. This representation allows...

17. The structure of low-energy excited states in even-even spherical nuclei within a multiphonon approach

Prof. Chavdar stoyanov (Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences)

15/07/2019, 17:00

The low-lying spectra of heavy spherical nuclei are investigated within the microscopic Quasiparticle–Phonon model. The approach goes beyond the quasiparticle random-phase approximation by treating a Hamiltonian of separable form in a multiphonon basis. It is therefore able to describe the anharmonic effects of collective modes as well as the multiphonon states. By associating the microscopic...

4. Vortical toroidal mode in nuclei: recent progress

Prof. Valentin Nesterenko (BLTP, Joint Institute for Nuclear Research)

15/07/2019, 17:20

The vortical dipole toroidal mode (TM) attracts a high attention last decades [1]. The squeezed TM produces the pygmy dipole resonance [2,3] and forms the low-energy part of the isoscalar giant dipole resonance. TM can also occur as the lowest dipole state in light deformed nuclei [4-6]. TM is the only intrinsic electric vortical mode in nuclei. It can exist as a vortex ring [2,7] or...

46. Transfer products accompanying complete fusion

Dr Shuhrat Kalandarov (BLTP JINR)

15/07/2019, 17:40

The product yields of multinucleon transfer reaction is analyzed in low-energy collisions of ${}^{48}$Ca+${}^{nat}$Cm at Elab=5.63 MeV/nucleon. The transfer products accompany the complete fusion. While the collisions with low angular momenta contribute to the production of very neutron-deficient isotopes, the collisions with high (near and above critical angular momentum) angular momenta result...

33. Revival of supersymmetric dark matter

Dr Elena Arbuzova (Dubna State University and Novosibirsk State University)

16/07/2019, 09:30

The lightest supersymmetric particles (LSPs) are natural candidates for the constituents of dark matter. However, the constraints obtained at LHC exclude such particles with masses below roughly 1TeV. In conventional cosmology heavier LSPs would have too high energy density and overclose the Universe. In modified gravity the expansion regime is different and the density of LSPs can be...

15. The central cusps in dark matter halos: fact or fiction?

Prof. Anton Baushev (Joint Institute for Nuclear Research, Dubna, Russia)

16/07/2019, 10:00

We investigate the reliability of standard N-body simulations by modelling of the well-known Hernquist halo with the help of GADGET-2 code (which uses the tree algorithm to calculate the gravitational force) and ph4 code (which uses the direct summation). Comparing the results, we find that the core formation in the halo center (which is conventionally considered as the first sign of numerical...

26. Matrix elements for neutrinoless double beta decay

Prof. Fedor Simkovic (Comenius University Bratislava)

16/07/2019, 10:20

The present-day results of the calculation of the 0νββ-decay nuclear matrix elements (NMEs) are discussed. The progress in the calculation of the double beta decay NMEs within the QRPA is presented in the context of the restoration of the SU(4) symmetry. A connection between the 2νββ-decay and 0νββ-decay matrix elements is analyzed. An impact of the quenching of the axial-vector coupling...

69. Ordinary muon capture studies by means of gamma-spectroscopy

Mrs Daniya Zinatulina (Russian)

16/07/2019, 10:40

HPGe detectors were used to make a precise measurement of the γ-ray spectrum produced following ordinary (non-radiative) capture of negative muons by isotopically-enriched (48Ti, 76Se, 82Kr, 106Cd and 150Sm) and natural tartegets (Se, Kr, Cd and Sm). By investigating energy and time distributions, the lifetime of negative muons in the different isotopes was deduced. A detailed analysis of...

6. The Pomeron, Odderon, and nucleon resonances in $\phi$-meson photoproduction

Dr Sangho Kim (Pukyong National University (PKNU))

16/07/2019, 11:30

We suggest a possible explanation for the $\phi$(1020) photoproduction mechanism in the W = 2.0−2.8 GeV region covering the full scattering angles. We have found that, with the universally accepted Pomeron exchange, the Odderon and three PDG $N^{\ast }$ resonances play a crucial to describe the cross sections and spin-density matrix elements data from the CLAS collaboration.

68. BFKL evolution manifestations in jet production at colliders

Prof. Victor Kim (NRC KI - PNPI, Gatchina & SPbPU, St. Petersburg)

16/07/2019, 12:00

Approach by Brodsky-Fadin-Kim-Lipatov-Pivovarov (BFKLP) for next-to-leading approximation (NLA) of Balitsky-Fadin-Lipatov-Kuraev (BFKL) evolution with generalized Brodsky-Lepage-McKenzie (BLM) resummation of QCD coupling constant effects is reviewed. Applications of NLA BFKL evolution within BFKLP approach for virtual gamma-gamma scattering and dijet productions with large rapidity separation...

43. A Froissart-bounded longitudinal structure function

Dr Anatoly Kotikov (JINR)

16/07/2019, 12:20

We present a method to extract, in the leading and next-to-leading order approximations, the longitudinal deep-inelastic scattering structure function F${}_L$(x,Q${}^2$) from the experimental data by relying on a Froissart-bounded parametrization of the transversal structure function F${}_2$(x,Q${}^2$) and, partially, on the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equations. Particular attention is...

54. Beyond the Standard Model and neutrino precision test

Dr Chitta Ranjan Das (BLTP, JINR)

16/07/2019, 12:40

22. Open quantum systems of atomic nuclei

Prof. Furong Xu (School of Phyiscs, Peking University)

16/07/2019, 14:30

Weakly bound and unbound nuclei are complex open quantum systems (OQS) in which the coupling to the scattering continuum is crucial and should be properly treated. A small uncertainty in modeling would change the conclusions of physics. The nuclei around driplines can simultaneously undergo gamma-ray transitions, beta decays and particle emissions. An important feature of the loosely bound and...

42. Relativistic description of novel nuclear structure towards extremes of spin and isospin

Prof. Pengwei Zhao (Peking University)

16/07/2019, 15:00

The development of worldwide rare isotope beam facilities has brought many new insights in nuclear physics. In particular, novel structure in nuclei towards extreme isospin and spin has acquired great interest over the years for the challenges and implications it involves. Theoretically, covariant density functional theory (CDFT) has achieved great success in describing many nuclear phenomena...

37. Multi-photon dynamics of non-linear quantum processes in short polarized electromagnetic pulses

Prof. Alexander Titov (JINR, BLTP)

16/07/2019, 15:30

We have performed a simultaneous analysis of two essentially non-linear QED processes in circular and linear polarized short and intensive e.m. (laser) pulses: (i) non-linear Breit-Wheeler $e^{+}{e}^{-}$ pair creation in the interaction of probe photon with such a pulse and (ii) the photon emission or the non-linear Compton scattering when an initial electron interacts with the short and...

27. Tidal deformability of neutron stars and gravitational waves

Prof. Chang-Hwan Lee (Pusan National University)

16/07/2019, 16:30

Gravitational waves (GW170817) produced in a binary neutron star inspiral have been observed followed by gamma-ray burst (GRB 170817A) and afterglows from X-ray to radio. By combining the distance obtained by gravitational waves and red shift obtained by electromagnetic waves, even Hubble constant has been estimated. This indicates the start of new era of multimessenger astronomy. In...

3. Neutrino-Process for Core Collapse Supernova Explosion

Prof. Myung-Ki Cheoun (Soongsil University)

16/07/2019, 17:00

We investigate the neutrino oscillation effects by the neutrino self-interaction near to the neutrino sphere and the MSW effect far from the sphere on the element abundances. The representative synthesized elements by neutrino from supernova explosion are known as 7Li, 11B, 92Nb, 98Tc, 138La, and 180Ta. Near to the neutrino sphere, the neutrino density is about 1032 / cm3, whose number is high...

18. Electron capture rates on neutron-rich nuclei in core-collapse supernova

Prof. Andrey Vdovin (BLTP JINR)

16/07/2019, 17:30

The rates of electronic captures (EC) on nuclei largely determine the dynamics of the late-stage evolution and collapse of massive star which is a prelude to the explosion of type II supernova. To simulate this astrophysical phenomenon one needs a large-scale set of data on the EC probabilities. The data are needed for a large number of nuclides most of which are unstable and, possibly,...

7. Effects of RPA correlations on charged-current neutrino opacities in supernova neutrino-sphere

Dr Alan Dzhioev (BLTP JINR)

16/07/2019, 17:50

The study of neutrino interaction processes with core-collapse supernova matter is crucial to our understanding of the explosion mechanism. The charged-current processes ${\nu }_e+n\to p+e^{-}$ and ${\overline{\nu }}_e+p\to n+e^{+}$ are mainly responsible for heating behind the stalled shock front and thus for reviving the explosion. Neutrino transport to the shock region is sensitive to the...

29. Deeply Virtual Meson Production with CLAS and Impact on chiral-odd GPD models

Prof. Wooyoung KIM (Kyungpook National University)

17/07/2019, 09:30

Deeply virtual compton scattering and deeply virtual meson production are useful tooo to study the Generalized Parton distributions. We have measured cross sections and asymmetry from pi0 and eta production with CLAS at Jefferson Lab. The results will be compared with two theoretical models which describe the chiral-odd GPDs. We also discuss our future plan with upgraded 12 GeV electron beams...

20. Meson-baryon scattering in the Regge realm

Prof. Byung Geel YU (Korea Aerospace University)

17/07/2019, 10:00

We present a model for the Regge phenomenology of meson-baryon scattering at high energies. Diffraction features of pi-N and KN elastic scatterings are described by the Pomeron trajectory which we newly formulated to apply for high energy data. On the basis of the Reggeized meson exchanges in the t-channel we also discuss N* resonances in the pi-N scatterings by using the parameterization...

36. Triton binding energy and neutron-deuteron scattering up to next-to-leading order in chiral effective field theory

Dr Young-Ho Song (Institute for Basic Science)

17/07/2019, 10:30

Determination of the proper power-counting scheme is an important issue for the systematic application of Chiral Effective Field Theory in nuclear physics. We analyze the cutoff dependence of three-nucleon observables (the neutron-deuteron scattering lengths and the triton binding energy) at the leading and next-to-leading orders of a power counting that ensures order-by-order renormalization...

34. Radiative symmetry breaking in the Standard Model

Dr Andrej Arbuzov (BLTP JINR)

17/07/2019, 11:30

Breaking of the conformal symmetry in the Standard Model is realized with the help of the Coleman-Weinberg mechanism. The emergence of the electroweak scale is shown. The naturalness problem and vacuum stability of the Standard Model are discussed. The energy scale of new physics is estimated.

71. Decay $B_s\to K^{\ast 0}{\mu }^{+}{\mu }^{–}$ in covariant confined quark model

Dr Aidos Issadykov (Jinr)

17/07/2019, 12:00

We evaluate $B_s\to K^{\ast 0}$ transition form factors in the full kinematical region within the covariant confined quark model. The calculated form factors used to calculate the $B_s\to K^{\ast 0}{\mu }^{+}{\mu }^{–}$ rare decay branching ratio, which was recently measured by LHCb collaboration.

25. Implementation of polarized $e^{+}{e}^{-}\to \gamma \gamma$ process in MCSANC

Mr Vitaly Yermolchyk (INP BSU)

17/07/2019, 12:20

We present implementation of $e^{+}{e}^{-}\to \gamma \gamma$ process in **MCSANC** project. The dominant processes in the $e^{+}{e}^{-}$ experiments are the processes of annihilation. Possible alternative lumiprocess Bhabha is large angle photon-pair production and annihilation to muon pair because the cross section value of the photon-pair production estimated for large angles is of the same...

38. The proton size puzzle: latest news

Prof. Alexander Dorokhov (JINR)

17/07/2019, 12:40

Current status of the proton size puzzle from experimental and theoretical points of view is briefly discussed. The interest to these studies is primarily related to experiments conducted by the CREMA collaboration (Charge Radius Experiments with Muonic Atoms) with muonic hydrogen and deuterium by methods of laser spectroscopy. As a result a more accurate value of the proton charge radius was...

48. Phase transition between the isovector to isoscalar pairing correlations in deformed N=Z nuclei

Dr EUN JA HA (Soongsil University)

17/07/2019, 14:30

We demonstrated that the enhanced IS pairing brings about the IS condensation with the deformation. In fact, the relationship between the IS pairing in the tensor force and the deformation is not clear because of the shell evolution along the deformation. In particular, the completion of the pairing interaction in the residual interaction and the deformation in the mean field remains to be discussed.

11. Pygmy and giant dipole resonances in ${}^{48,50}$Ca and ${}^{68,70}$Ni

Dr Nikolay Arsenyev (Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia)

17/07/2019, 15:00

The structure of exotic neutron-rich nuclei is one of the main science drivers in contemporary nuclear physics research. An attention has been devoted to effects of varying the ratio between the proton $Z$ and neutron $N$ numbers on different nuclear structure characteristics of nuclei deviated from their valley of $\beta$-stability. One of the phenomena associated with the change in $N/Z$...

10. Self-consistent study of isobaric analog resonances in nuclei with pairing

Dr Ivan Borzov (NRC KI, BLTP JINR)

17/07/2019, 15:20

Fully self-consistent calculation of the IAR resonances is performed for the long chain of Ni isotopes with Tz ≠0. The recently established DF3-f parametrization [1] of the Fayans energy density functional [2] is used. Its performance in “reference” neutron-rich Sn and Pb isotopes with developed pairing correlations is also studied. The main aim is to figure out the influence of T=1...

12. Investigation of level density parameters of superheavy nuclei

Mrs Anna Bezbakh (JINR)

17/07/2019, 15:40

In our work we defined level density of heavy nuclei with the single-particle spectra using the saddle-point method and based on a superconducting formalism. Calculated energy dependent level density parameter of superheavy nuclei, by fitting the Fermi gas expression with BCS calculations at the ground state and at saddle point, compared with the phenomenological model are presented. The...

9. QCD vacuum in nuclear matter?

Dr Youngman Kim (IBS)

17/07/2019, 16:30

A possible role of QCD vacuum in dense matter is an interesting topic to be pursued. We first present some reults from studies based on a parity doublet model and then discuss a possibility to tackle the problem in terms of chiral quarks and classical gluon fields.

39. Stochastic hydrodynamics and long time tails under the effect of multiplicative noise

Jingyi Chao (Institute of Modern Physics, CAS)

17/07/2019, 17:00

We investigate hydrodynamic fluctuations on correlation functions in a conserved U(1) charge fluid beyond the white noise approximation. We introduce two additional nonlinear mode coupling constants to study the effect of multiplicative noise due to the position dependent transport coefficients. The behaviors of two vertexes are constrained by the disappearance while averaging the noise term...

32. Transverse momentum distributions of hadrons in the Tsallis nonextensive statistics

Dr Alexandru Parvan (JINR and IFIN-HH)

17/07/2019, 17:30

The exact analytical formulas for the transverse momentum distributions of the Bose-Einstein, Fermi-Dirac and Maxwell-Boltzmann statistics of particles with a nonzero mass in the framework of the Tsallis normalized and Tsallis unnormalized statistics were consistently derived. We have revealed that the phenomenological classical Tsallis distribution (widely used in high energy physics) is...

73. Role of the h1(1800) and f1(1285) states in the J/psi decays

Dr Ju-Jun Xie (IMP, CAS, Lanzhou, China)

18/07/2019, 09:30

A state around 1800 MeV was generated from the interaction of the KstarKstar-bar within the local hidden gauge approach. We show that the peak observed in J/psi->eta Kstar Kstar-bar naturally comes from the creation of this h1 state. A second analysis, model independent, corroborates the first result, confirming the relationship of the enhancement in the invariant mass spectrum with the h1...

1. Tetraquark mixing framework for the two light-meson nonets

Prof. Hungchong Kim (Korea Aerospace University)

18/07/2019, 10:00

We propose a tetraquark mixing framework for the two light-meson nonets in the $J^P=0^{+}$ channel, the light nonet $f_0(500)$, $f_0(980)$, $a_0(980)$, $K_0^{\ast }$(800), and the heavy nonet $f_0(1370)$, $f_0(1500)$, $a_0(1450)$, $K_0^{\ast }(1430)$. According to this framework, one can introduce two types of tetraquark with different spin configuration, $|J,J_{12},J_{34}=|000>,|011>$,...

70. DK interaction as a doorway to manifestly exotic mesons

Prof. Lisheng Geng (Beihang University)

18/07/2019, 10:30

In recent years, it is found that many of the newly discovered states cannot easily fit into the naïve quark model. Because some of them are located close to two body thresholds, they have been conjectured as molecular states. We propose that one way to unambitiously test such a picture is going to few body (greater than two) systems while the building blocks are the two body subsystems. The...

24. Modeling the gluon and ghost propagators in Landau gauge by truncated Dyson-Schwinger equations

Prof. Leonid Kaptari (Bogoliubov Lab.Theor. Phys., 141980, JINR, Dubna, Russia)

18/07/2019, 11:30

We suggest a framework based on the rainbow approximation with effective parameters adjusted to lattice data. The analyticstructure of the gluon and ghost propagators of QCD in Landau gauge is analyzed by means of numerical solutions of the coupled system of truncated Dyson-Schwinger equations. We find that the gluon and ghost dressing functions are singular in complex Euclidean space with...

23. CMS upgrade plan for high-luminosity era and prospect on heavy-ion physics

Prof. Byungsik Hong (Korea University)

18/07/2019, 12:00

The CMS Collaboration has a major detector upgrade plan during the long shutdown 3 (LS3) to prepare the high-luminosity runs. It includes the new tracking system, the muon system, the electromagnetic and hadronic calorimeters, and the trigger system. This upgrade will significantly enhance the physics performance of the CMS detector not only for proton-proton collisions, but also heavy-ion...

44. Scaling properties of azimuthal anisotropy at RHIC

Dr Arkadiy Taranenko (NRNU MEPhI)

18/07/2019, 12:30

A central goal of current experiments at RHIC is to study the properties of the hot and dense QCD matter produced in energetic heavy-ion collisions. Such studies can give provide on the QCD phase diagram, as well as the transport coefficients of the strongly-coupled Quark Gluon Plasma (sQGP). Anisotropic flow measurements of identified particles play an essential role in such studies. We...

14. Calculation of fission fragment mass distributions by using a semi-empirical method

Prof. Seung-Woo Hong (Sungkyunkwan University)

19/07/2019, 09:30

Fission product yield data are important for applications of nuclear technology such as the estimation of decay heat, operation of nuclear reactors and handling of spent fuels. However, due to the short life-time, a large part of fission fragment yield data cannot be obtained from measurements. Therefore, models of fission fragment yields are needed for such unmeasured cases. Though many...

16. Studies on ${\mathrm{\Lambda }}_c^{+}$ hadronic decays

Prof. Seung-il Nam (Pukyong National University)

19/07/2019, 10:00

In this talk, we would like to report our recent theoretical studies on the ${\mathrm{\Lambda }}_c^{+}$ hadronic decays, i.e., ${\mathrm{\Lambda }}_c^{+}\to {\pi }^{+}{K}^{-}p$ (charged) and ${\mathrm{\Lambda }}_c^{+}\to {\pi }^{+}{\overline{K}}^{0}n$ (neutral), using the effective Lagrangian approach. Considering the strong $ud$-diquark correlation inside the ${\mathrm{\Lambda }}_c^{+}$ baryon, we confine our model to that with the I=0 hyperon resonances and other...

75. Spreading widths of giant dipole resonance in the lead region

Dr Rashid Nazmitdinov (BLTP, JINR< Dubna)

19/07/2019, 10:30

The statistical properties of the $1^{-}$ spectrum in energy interval 9.5-18.5 MeV for ${}^{206}$Hg, ${}^{204,206,208}$Pb and ${}^{210}$Po nuclei are analysed thoroughly within the microscopic approach and the Random Matrix Theory. The microscopic approach is based on the mean field, simulated by means of the Skyrme interaction SLy4 and the volume pairing interaction, treated in the BCS...

40. Nuclear experiments at KoBRA and Y2L in Korea

Prof. Kevin Hahn (Ewha Womans University)

19/07/2019, 11:00

Korea is currently constructing the radioactive ion (RI) beam accelerator facility called RAON. One of the experimental facilities called KoBRA, located in the low energy experimental hall, is expected to carry out nuclear astrophysics and nuclear structure experiments in the early phase of RAON. Several experiments using both stable and RI beams of tens of MeV/nucleon are considered for...

62. Towards an ab initio covariant density functional for nuclear structure

Prof. Jie Meng (School of Physics, Peking University)

19/07/2019, 11:30

Nuclear structure models built from phenomenological mean fields, the effective nucleonnucleon interactions (or Lagrangians), and the realistic bare nucleon-nucleon interactions are reviewed. The success of covariant density functional theory, which starts from effective Lagrangians, to describe nuclear ground-state and excited-state properties and its influence on Brueckner theory within...