Nuclear Physics in Astrophysics - X

Session

Thursday - Session 1

8 Sept 2022, 09:00

500/1-001 - Main Auditorium (CERN)

Conveners

Thursday - Session 1

• Roland Diehl

140. Exotic nuclei: Toward the dripline

Shunji Nishimura

08/09/2022, 09:00

Invited

About half of the elements heavier than iron that exists in nature are believed to be synthesized by astrophysical rapid neutron capture process (r-process), a sequence of neutron captures and $\beta$ decays in extreme neutron-rich stellar environments. The astronomical site and the mechanism of the r-process are not yet fully understood. Reliable nuclear data inputs such as nuclear masses,...

48. Understanding 22Na cosmic abundance

Chloe Fougeres (GANIL (FRANCE))

08/09/2022, 09:30

Oral

Simulations of explosive nucleosynthesis in novae predict the production of the radioisotope $^{22}\text{Na}$. Its half-life of 2.6 yr makes it a very interesting astronomical observable by allowing space and time correlations with the astrophysical object. This radioisotope should bring constraints on nova models. It may also help to explain abnormal $^{22}\text{Ne}$ abundance observed in...

39. Deuterium burning measurement at LUNA and its astrophysical and nuclear implications

Francesca Cavanna

08/09/2022, 09:45

Oral

Light elements were produced in the first few minutes of the Universe through a sequence of nuclear reactions known as Big Bang Nucleosynthesis (BBN). Among the light elements produced during BBN, deuterium is an excellent indicator of cosmological parameters because its abundance is highly sensitive to the primordial baryon density. Although astronomical observations of primordial deuterium...

132. Mass measurement in the N=40 region with JYFLTRAP

Dr Laetitia Canete (University of Surrey)

08/09/2022, 10:00

Oral

We report on a precise mass measurement of 69Co and 70Co performed at the IGISOL facility [1].
The nuclear structure above the N=40 subshell closure remained for long unclear due to lack of information on neutron-rich nuclei in this region. This region is known for shape coexistence and intruder states have been observed in neutron-rich cobalt isotopes toward N=40 [2]. The two-neutron...

47. Beta-decay spectroscopy of neutron-deficient nuclei

Sonja Orrigo (Univ. of Valencia and CSIC (ES))

08/09/2022, 10:15

Oral

Beta decay has a direct access to the absolute values of the Fermi and Gamow-Teller transition strengths. The comparison with complementary charge exchange reactions, such as the ($^3$He,t) reaction performed on the mirror stable targets at RCNP Osaka, allows us the investigation of fundamental questions related to the role of the isospin in atomic nuclei. A systematic study of...