BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:The PANDORA project for in-plasma β-decay investigations of nucle
 ar astrophysical interest
DTSTART:20260521T143000Z
DTEND:20260521T153000Z
DTSTAMP:20260517T022800Z
UID:indico-event-1821@indico.dfa.unipd.it
CONTACT:denise.piatti@pd.infn.it\;franco.galtarossa@pd.infn.it
DESCRIPTION:In the frame of the PANDORA (Plasmas for Astrophysics Nuclear 
 Decays Observation and Radiation for Archaeometry) project\, a new experim
 ental approach has been conceived to measure\, for the first time\, in-pla
 sma b-decays lifetimes as a function of thermodynamical conditions of the 
 environment\, namely a laboratory magnetized plasma able to mimic some ste
 llar-like conditions. Theoretical models predict considerable variations i
 n the β-decay lifetimes in highly ionized nuclides (e.g. by bound state b
 -decay)\, which would have a strong impact on stellar nucleosynthesis proc
 esses.\nIn the fully superconducting high performance PANDORA trap\, a hot
  plasma containing a known concentration of β-decaying atoms can be confi
 ned and kept in dynamic equilibrium for weeks. The decay rate can be measu
 red by detecting the γ-rays emitted by the daughter nuclei (through an ar
 ray of 14 HPGe detectors) and correlated as a function of the average ioni
 zation state of radioactive ions using synergically an advanced plasma mul
 ti-diagnostic system.  PANDORA represents a promising experimental setup 
 to verify\, for the first time\, the theoretical predictions on the depend
 ence of lifetime on temperature and to investigate the expectations derivi
 ng from nucleosynthesis calculations. The sensitivity of the PANDORA setup
  was checked by estimating the duration of the experimental run to obtain 
 sufficient statistical significance in terms of σ-confidence levels. The 
 analysis was carried out for the first three physical cases (176Lu\, 134Cs
 \, 94Nb) involved in crucial branching points in s-processing nucleosynthe
 sis and selected according to the scientific relevance.\nIn this seminar\,
  the PANDORA facility and the experimental approach will be described\, al
 ong with the feasibility simulative studies and the plasma characterizatio
 ns carried out on testbenches.\n\nhttps://indico.dfa.unipd.it/event/1821/
LOCATION:zoom
URL:https://indico.dfa.unipd.it/event/1821/
END:VEVENT
END:VCALENDAR