ESF Workshop

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ESF Workshop

The future of stable beams in Nuclear
Astrophysics
NCSR Demokritos, Athens,
Greece
December
14-15, 2007
Organizing Committee S. Harissopulos (Convener),
P. Demetriou, A. Lagoyannis
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CONCLUSION 1 A severe number of indirect
measurements have improved our knowledge of
stellar evolution considerably. Yet, as their
results suffer from model dependencies, they
cannot replace the direct measurements. Hence
direct measurements are still considered to
provide the clearest signatures of many
astrophysical phenomena.

• CONCLUSION 2
• Unfortunately, leading nuclear astrophysics
  laboratories in Europe fulfilling certain
  requirements (high current low-energy stable
  beams, ) are already closed or will be closed in
  the near future, while others have been
  transformed into analytical laboratories or
  irradiation facilities in order to survive in a
  highly competitive environment, where the demand
  for industrial applications has washed out many
  basic research activities in the field of
  low-energy nuclear physics. As a result, a
  high-current stable beam facility for nuclear
  astrophysics studies in Europe is missing and
  there is an urgent need for Europe to create a
  new state-of-the art high-current facility
  equipped with advanced detection techniques.

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CONCLUSION 3 Europe has opened a new era in
Nuclear Physics New facilities providing intense
radioactive beams, such as FAIR, SPIRAL2 and
HI-ISOLDE will soon be able to host ambitious
nuclear physics programs including
astrophysically important projects requiring
unstable ion-beams. The operation of such
facilities will be realized due to a severe
number of technological achievements. Some of
these are necessary to be adapted by the new
stable-beam facility for nuclear astrophysics.
Hence, a strong interaction with the RIB-related
scientific community is necessary. The creation
of a new low-energy high-current stable ion-beam
facility for nuclear astrophysics is not
competing to the Radioactive Ion-Beam facilities
(RIB) existing in Europe or to those proposed to
be created in the future. Instead, it complements
and supports the physics programs of these
facilities.
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CONCLUSION 4 Though, the new facility is of
importance for the whole European scientific
community the necessary funding for its creation
is, comparatively to other projects of the same
scientific impact, much smaller, i.e., of the
order of 6-8 million Euros. As such, the funding
of the new facility cannot be included as an
individual project in, e.g. the European Roadmap
for Research Infrastructures (ESFRI Roadmap).
Therefore other funding options should be
identified.

• An expert committee for follow-up activities was
  assigned with the aim to
• produce a physics-case report and a basic
  design study
• identify initiatives at a EU level leading to
  the creation of this facility.
• The expert committee has recognized the decisive
  role of ESF and NuPECC in promoting and
  supporting science initiatives and expressed the
  interest to launch activities under the guidance
  of ESF and especially of NuPECC

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Accelerators for nuclear astrophysics
ESF Workshop on The future of stable beams in
Nuclear Astrophysics, Athens, Dec. 14-15, 2007
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