Conveners
Poster session - II
- Ngoc Duy Nguyen (Sunkyunkwan University)
The neutron capture cross sections of W-186(n,g)W-187 reaction at 24 keV neutron energy were measured relative to the standard capture cross section of Au-197 by activation. The 24 keV filtered neutron beam at the Dalat nuclear research reactor has been used in the activation experiment. The measured cross section was normalized to obtain the Maxwellian averaged neutron capture cross sections...
We investigated the big-bang nucleosynthesis (BBN) on an expanding four-dimensional bubble nucleated in Kerr-AdS_5. This nucleation is caused by vacuum decay between two AdS vacua, and the bubble that separates the two vacua and surrounds a black hole is assumed to have a uniform tension. The black hole behaves like dark radiation on the bubble, and its “radiation density” depends on the mass...
The $\nu$-process nucleosynthesis in core-collapse supernovae is a sensitive probe of unknown neutrino mass hierarchy through the Mikheyev–Smirnov–Wolfenstein effect of neutrino flavor conversion in matter. The $\nu$-process depends on not only the neutrino-induced $\nu$-nucleus reactions but also many other nuclear reactions. Based on updated theoretical calculations and experimental result...
It is known that viruses and cosmic rays make a decisive contribution to the evolution of
biological species on Earth, participating in their transformation at the genetic level, largely
determining the processes of selection [1].
Nuclear reactions involving primary cosmic radiation and atmospheric ions can lead to the
formation of secondary neutrons. The density of the background neutron...
The $\beta$-decay properties of very neutron-rich nuclei, such as half-lives and $\beta$-delayed neutron emission probabilities, play an essential role in the astrophysical rapid neutron capture process ($r$-process), where the elements heavier than iron may be synthesized [1,2]. The investigation of those crucial properties has been one of the main objectives of the experimental programs at...
Type-I X-ray bursts are rapidly brightening phenomena induced by unstable hydrogen/helium burning near the surface of accreting neutron stars (NSs). During X-ray bursts, heavy proton-rich nuclei maximally up to the mass number A~107 are synthesized by a rapid-proton capture (rp) process, but how the nucleosynthesis proceeds depend on many model parameters such as the accretion rate, the...
Neutrino and antineutrino emission is dominant for the cooling process of neutron-stars (NSs).
Since neutrino emission rates depend on physical circumstances inside NSs, the study of NS cooling through neutrino emission gives important information for constraining internal NS structures
On the other hand, magnetic fields in NSs play important roles in the interpretation of many observed...
The goal of the Multi-Purpose Detector (MPD) [1] at the Nuclotron-based Ion Collider fAcility (NICA) [2] is to explore the QCD phase diagram of strongly interacting matter produced in nucleus-nucleus collisions at center-of-mass energy per nucleon pair $\sqrt{s_{NN}}$ = 4$-$11 GeV in the region of high net baryon chemical potential and moderate temperatures. The anisotropic flow is a key...
In the astrophysical plasma, such as the early universe or inside stars, elements are created through thermonuclear reactions. Therefore, we can understand the evolution of elements through the network calculation of nuclear reactions. However, because of the medium effects of plasma, nuclear reactions in these environments are different from what we understand in free space. Therefore, a more...
The radiative strength function (RSF), defined as the average electromagnetic transition probability per unit of $\gamma$-ray energy $E_\gamma$, is an important quantity to study the nuclear reaction properties such as emission rate, cross section, and nuclear astrophysical processes. We proposed a new method to describe the RSF within a microscopic approach, which is based on the damping of...