ar X iv : 0 80 9 . 33 19 v 1 [ as tr o - ph ] 1 9 Se p 20 08 Development of a large area gas photomultiplier with GEM / μ PIC

ar X iv : 0 80 9 . 02 63 v 2 [ he p - ph ] 2 9 Se p 20 08 CP violating phases in μ − e conversion

Experiments are planned to improve the sensitivity of μ − e conversion from the current ∼ 10 to ∼ 10 − 10. If the muon (bound to the nucleus) could be polarised, a spin asymmetry of the final state electron is sensitive to CP violating phases on lepton flavour violating operators. This is similar to extracting phases from asymmetries in the final state spin and phase space distributions of μ → ...

ar X iv : 0 80 9 . 50 92 v 1 [ he p - ph ] 2 9 Se p 20 08 Aspects of Unparticle Physics Arvind Rajaraman

We review some theoretical and experimental issues in unparticle physics, focusing mainly on collider signatures.

ar X iv : 0 80 1 . 35 64 v 1 [ as tr o - ph ] 2 3 Ja n 20 08 Local Phase Space - Shaped by Chaos ?

ar X iv : 0 80 9 . 19 53 v 1 [ he p - ph ] 1 1 Se p 20 08 511 keV γ - ray emission from the galactic bulge by MeV millicharged dark matter 1

We propose a possible explanation for the recently observed anomalous 511 keV line with a new “millicharged” fermion. This new fermion is light [O(MeV)]. Nevertheless, it has never been observed by any collider experiments by virtue of its tiny electromagnetic charge εe. In particular, we constrain parameters of this millicharged particle if the 511 keV cosmic γ-ray emission from the galactic b...

ar X iv : 0 80 9 . 42 29 v 1 [ m at h - ph ] 2 4 Se p 20 08 Thermodynamic Limit for Spin Glasses . Beyond the Annealed Bound

Using a correlation inequality of Contucci and Lebowitz for spin glasses, we demonstrate existence of the thermodynamic limit for short-ranged spin glasses, under weaker hypotheses than previously available, namely without the assumption of the annealed bound.