SSP2012 - 5th International Symposium on Symmetries in Subatomic Physics

One of the most fundamental principles on which our current understanding of nature is based is the invariance of physical laws under Lorentz transformations. Theories trying to unify the Standard Model with Quantum Gravity may break this invariance, and and dedicated high-precision experiments at low energy could be used to reveal such suppressed signals from the Planck scale. In the...

We discuss the possibility of observing CPT violation from top anti-top production in hadronic colliders. We present a general approach by studying constraints on the mass difference between the top and anti-top quarks. We present current bounds from Tevatron data, and analyze the prospects of improving these bounds at the LHC.

Currently, the high-precision Penning trap mass spectrometer PENTATRAP is being built up at the Max-Planck-Institut für Kernphysik, Heidelberg, Germany. It aims at mass-ratio measurements of medium- to high-Z elements with uncertainties of a few parts in 10^12. Mass-ratios will be determined by the measurement of cyclotron frequency-ratios in the strong magnetic field of the trap. This will be...

One of the goals of precision measurements in nuclear beta-decay is searching for deviations from the Standard Model that could point to new physics. The primary aim of WITCH experiment [1] at the ISOLDE/CERN facility is the search for a scalar interaction in beta-decay by a precise (0.5%) determination of the beta-neutrino angular correlation coefficient, a, which would constrain a possible...

Nuclear few-body systems become attractive avenues for study of low-energy parity violation because experiments start to meet the precision requirements and theoretical calculations can be performed reliably. In this talk, an attempt of parametrizing low-energy parity-violating observables by the Danilov parameters will be introduced. Analyses of two-nucleon observables, based on the modern...