ISOLDE Workshop and Users meeting 2016

Session

Light nuclei, Astrophysics & New Instruments

7 Dec 2016, 16:20

503/1-001 - Council Chamber (CERN)

Conveners

Light nuclei, Astrophysics & New Instruments

• Joakim Cederkall (Lund University (SE))

66. Light nuclei, new set-ups, persistent challenges

Karsten Riisager (Aarhus University (DK))

07/12/2016, 16:20

Invited

The lightest nuclei present physics problems where progress is only made incrementally and slowly. New instrumentation is then essential for further advances. We present here two examples taken from ISOLDE runs in 2016.

The first problem is motivated in the astrophysically very important 12C(a,g)16O reaction. The cross section of this reaction at energies relevant to stellar helium burning is...

52. Perspectives for nuclear astrophysics with radioactive beams

Anu Kankainen

07/12/2016, 16:50

Invited

The Nuclear Physics European Collaboration Committee (NuPECC) has launched Long Range Plan 2017 for nuclear physics. The working group on nuclear astrophysics has produced a review of the field with perspectives and recommendations for future. New and upgraded radioactive beam facilities will provide novel opportunities for nuclear astrophysics experiments in the near future. In this...

14. 7Be(n,a) AND 7Be(n,p) CROSS-SECTION SECTION MEASUREMENT FOR THE COSMOLOGICAL LITHIUM PROBLEM AT THE n_TOF FACILITY AT CERN

Massimo Barbagallo (Universita e INFN, Bari (IT))

07/12/2016, 17:20

Submitted

One of the most important unresolved problems in Nuclear Astrophysics is the so-called “Cosmological Lithium problem” (CLiP). It refers to the large discrepancy (factor 3-5) between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis (BBN) and the value inferred from the so-called ”Spite plateau” in halo stars.
In the framework of Standard Model, a...

1. Spectroscopy of conversion electrons with LN2 cooled Si(Li) detector at the TATRA spectrometer

Martin Venhart (Institute of Physics, Slovak Academy of Sciences)

07/12/2016, 17:40

Submitted

183Hg -> 183Au decay was studied using the TATRA system. Conversion electrons were detected with the LN2 cooled windowless Si(Li) detector. The tape system was operated at 8E-8 mbar, therefore no deposition of mist on the surface of cold detector was observed during the run. The FWHM of 1.3 keV for conversion electrons above 100 keV was achieved, which is almost comparable with previous...