VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons
Abstract
Many experiments investigated the violation of the Pauli Exclusion Principle (PEP) since its discovery in 1925. The VIP (VIolation of the Pauli Principle) experiment tested the PEP by measuring the probability for an external electron to be captured and undergo a 2p to 1s transition during its cascading process, where the 1s state is already occupied by two electrons. This transition is forbidden by the Pauli Exclusion Principle. The VIP experiment resulted in a preliminary upper limit for the probability of the violation of the PEP of 4.7 x 10^{-29}. Currently a setup for the follow-up experiment VIP 2 is under preparation. The goal of this experiment is to improve the upper limit for the violation of the PEP by two orders of magnitude, by different improvements like enhanced energy resolution of the X-ray detectors and by implementing an active shielding. Here we report currently ongoing performance tests of the new parts of the setup.
Keywords
Cite
@article{arxiv.1505.02991,
title = {VIP 2: Experimental tests of the Pauli Exclusion Principle for electrons},
author = {A. Pichler and S. Bartalucci and S. Bertolucci and C. Berucci and M. Bragadireanu and M. Cargnelli and A. Clozza and C. Curceanu and L. De Paolis and S. Di Matteo and A. D`Uffizi and J. P. Egger and C. Guaraldo and M. Iliescu and T. Ishiwatari and M. Laubenstein and J. Marton and E. Milotti and D. Pietreanu and K. Piscicchia and T. Ponta and E. Sbardella and A. Scordo and H. Shi and D. Sirghi and F. Sirghi and L. Sperandio and O. Vazquez-Doce and E. Widmann and J. Zmeskal},
journal= {arXiv preprint arXiv:1505.02991},
year = {2015}
}
Comments
EXA 2014 proceedings in Hyperfine Interactions (2015), Springer International Publishing