Cosmic Radiations: From Astronomy to Particle Physics by V. Berezinsky (auth.), Giorgio Giacomelli, Maurizio Spurio,

By V. Berezinsky (auth.), Giorgio Giacomelli, Maurizio Spurio, Jamal Eddine Derkaoui (eds.)

Non-accelerator particle physicists, in particular these learning neutrino oscillation experiments, will learn with revenue the in-depth discussions of recent effects and their interpretations. new guidance also are set out for brand spanking new advancements during this and comparable fields. Discussions are offered of neutrino oscillations, neutrino astronomy, excessive strength cosmic rays, gravitational waves, magnetic monopoles and darkish subject. the longer term large-scale study tasks mentioned comprise the experiments on lengthy baseline neutrino beams from CERN to Gran Sasso and Fermilab to the Soudan mine; huge underwater and under-ice experiments; the top strength cosmic rays; gravitational waves; and the quest for brand new debris and new phenomena.

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First released 1995
ebook ISBN13: 9780802779434

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Extra info for Cosmic Radiations: From Astronomy to Particle Physics

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L / e ratio of the muon (vJL + DJL) over the electron atmospheric neutrino flux (ve + De) (Gaisser:1995) found both in water Cerenkov experiments (Kamiokande, SK and 1MB) as well as in the iron calorimeter Soudan2 experiment is illustrated in Fig. (6). This evidence has now been substantially strengthened by the fact that it exhibits a strong zenith-angle dependence (Sobel:2000) as can be seen from Fig. (7). ------,--, ~u I ;~ 1 '-' 1 r - - - - ' l L . - - - - - - - - - - - - + - - - - - - - - - - - - j ]I: o Frejus Figure 6.

For fundamental physics, the direct observation of gravitational waves offers the possibility of studying gravitation in highly relativistic settings, offering tests of Relativistic Gravitation in the strong field limit, where the effects are not merely a correction to Newtonian Gravitation but produces fundamentally new physics through the strong curvature of the space-time geometry. Of course, the waves at Earth are not expected to be other than weak perturbations on the local flat space, however they provide information on the conditions at their strong field sources.

An amusing example illustrating such a synergy between accelerator and underground experiments is provided by the idea that low energy supersymmetry with the simplest form of R parity breaking provides the origin for neutrino mass and mixing (Hirsch:2000b). On the other hand if the LSND result stands the test of time, this would provide a strong indication for the existence of a light sterile neutrino, again pointing towards a radical departure between leptons and quarks. However, as already mentioned, the neutrino oscillation interpretation of solar neutrino anomalies is still far from unique.

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