Conveners
Nuclear structure and astrophysics
- Meng Wang (Institute of Modern Physics, Chinese Academy of Sciences)
Nuclear structure and astrophysics
- Yuhu Zhang (Institute of Modern Physics, Chinese Academy of Sciences)
Nuclear structure and astrophysics
- Jan Glorius (GSI Helmholtz Center, Darmstadt Germany)
Nuclear structure and astrophysics
- Yury Litvinov (GSI Darmstadt)
Description
Topic01：Nuclear structure and astrophysics
A novel isochronous mass spectrometry, termed B\rho-defined IMS, has been established at the experimental cooler-storage ring CSRe in Lanzhou. It used two time-of-flight detectors installed in one of the straight sections of CSRe, thus enabling simultaneous measurements of the velocity and the revolution time of each stored short-lived ion. This allows for calculating the magnetic rigidity B...
The nuclear two-photon or double-gamma (2γ) decay is a second-order electromagnetic decay process whereby a nucleus in an excited state emits two gamma rays simultaneously. Compared to first-order decay pathways, such as single photon emission or internal conversion, the two-photon decay branch is very small. Ideal cases for this search are $0^+ → 0^+$ transitions, where single photon emission...
In the past decade, research into low-energy nuclear reactions has entered a new era in heavy ion storage rings. At the GSI storage rings ESR and CRYRING we are now able to conduct reaction cross section measurements with decelerated radioactive beams. In this talk I will give an overview of the different experimental campaignes that address astrophysical problems in this context.
One of...
Beta decay of highly charged ions has attracted much attention in recent years. One such rare exotic decay mode is bound-state beta decay ($\beta_b$), in which the emitted electron occupies one of the vacant atomic orbitals accompanied by the emission of a quasi monochromatic antineutrino.
In this talk, we report on the recent results from the first direct measurement of the bound-state...
The Quest for Proton Boron Fusion and Related Topics
Dieter H.H. Hoffmann1,2,3
a collaborative effort of
1Xi’An Jiaotong University, Xi’An, Shaanxi, P.R. China
2 Hebei Key Laboratory of Compact Fusion, Langfang 065001, China
3ENN Science and Technology Development Co., Ltd., Langfang 065001, China
4Institute of Modern Physics, CAS, Lanzhou 730000, China
ABSTRACT
Recent progress in...
The Rare-RI Ring (R3) facility is a unique storage ring facility coupled with the cyclotron complex at the RIKEN RI beam factory [1]. Ions of interest are in-flight selected and are individually injected in the storage ring where the precision isochronous condition is realized. The event-by-event data processing is performed with information from auxiliary detectors installed at the fragment...
Reactions at low momentum transfer induced by intermediate-high energy protons are sensitive and pure probes for investigating, e.g. matter density distributions and isovector giant dipole Resonance, which provide important information on nuclear structure and astrophysics. Recently, a novel in-ring reaction experimental method based on stored beam and internal gas-jet target has attracted...
Several nuclear reactions are best investigated when the momentum transfer to the nucleus is small. Among these are the IsoScalar Giant Monopole Resonance (ISGMR) which helps determine one of the parameters of the equation of state, namely the incompressibility of nuclear matter, and proton elastic scattering from nuclei which is sensitive to parameters of nuclear density such as the matter...
There is a growing consensus in recent multi-messenger astronomy that the explosions of single massive stars, i.e. magneto-hydrodynamic jet supernova and collapsar, dominate the r-element enrichment over the entire history of cosmic evolution, while kilonova or neutron-star merger could partly contribute only in the recent epoch of cosmic history because of long time-delay until merger due to...
In the vicinity of driplines, the coupling to the continuum should be considered. To this end, we solve many-body problems in a complex-energy coordinates in which the Hamiltonian and other operators are no longer Hermitian but anti-Hermitian. This complex representation not only allows to take into account the coupling to the continuum, but also describes the resonances of nuclei. In the...
Dielectronic recombination is an important electron ion-collision process that governs the charge balance of plasmas. Moreover, the resonant nature of this process can be exploited for the spectroscopy of multiply excited levels in atomic ions. This electron-ion collision spectroscopy is particulary competitive for highly charged ions where lasers are not available for the large transition...
Location: cafeteria of IMP
Time: 18:00 -- 20:00
