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Written by Administrator
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Tuesday, 25 March 2008 |
Page 1 of 9
The context
This year will see the
launch of the much awaited Large Hadron Collider, LHC. The main raison d'être
of this major international project has been the elucidation of the mechanism
of symmetry breaking and the concomitant problem of the mass of all elementary
particles through the search of the elusive Higgs particle. The Higgs is the
missing link in the much successful Standard Model, SM, description of high
energy physics. In fact, when it comes to the sector of symmetry breaking,
there are numerous theoretical arguments that hint to New Physics so that we
expect a wealth of new data at the LHC. Apart from various theoretical
arguments, most recent observations like the celebrated WMAP (Wilkinson Microwave Anisotropy Probe) have confirmed that
ordinary matter accounts for a minute portion of what constitutes the Universe
at large. There is an overwhelming dominance of Dark Energy and Dark Matter, DM.
This, in itself, is New Physics. Add to this that the majority of models for
the New Physics whose primary aim is a better description of the Higgs sector
of the SM provide as a bonus a candidate
for DM, it is fair to say that we are witnessing the emergence of a strong
cross breeding between high energy collider physics on the one hand and
cosmology and astrophysics on the other to unravel the mystery of DM. It is
also important to stress that at about the same time as the LHC will be
gathering data, other significant experiments (PLANCK, GLAST, AMS, HESS, CDMS,
Edelweiss,...) will have provided or will be providing unprecedented information
on DM and hence on the New Physics. It
is therefore of utmost importance to get ready for the analyses and combination
of the wealth of data from these
upcoming non-collider observations with those at the LHC. This will also pave
the way to search strategies for a future international e+e-
Linear Collider, ILC. This important
programme is only possible if a cross-border particle-astroparticle
collaboration is set up, having at its disposal common or complementary tools
to conduct global combined analyses. Moreover it is crucial to associate
theorists and experimentalists from these two communities for such a project.
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