High-precision experiments have been done to test the Pauli exclusion principle (PEP) for electrons by searching for anomalous K-series X-rays from a Cu target supplied with electric current. With the highest sensitivity, the VIP (VIolation of Pauli Exclusion Principle) experiment set an upper limit at the level of 10−29 for the probability that an external electron captured by a Cu atom can make the transition from the 2p state to a 1s state already occupied by two electrons. In a follow-up experiment at Gran Sasso, we aim to increase the sensitivity by two orders of magnitude. We show proofs that the proposed improvement factor is realistic based on the results from recent performance tests of the detectors we did at Laboratori Nazionali di Frascati (LNF).
@article{arxiv.1405.1634,
title = {Testing the Pauli Exclusion Principle for electrons at LNGS},
author = {H. Shi and S. Bartalucci and S. Bertolucci and C. Berucci and A. 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 J. Marton and M. Laubenstein and E. Milotti and D. Pietreanu and K. Piscicchia and T. Ponta and A. Romero Vidal and E. Sbardella and A. Scordo and D. L. Sirghi and F. Sirghi and L. Sperandio and O. Vazquez Doce and E. Widmann and J. Zmeskal},
journal= {arXiv preprint arXiv:1405.1634},
year = {2016}
}
Comments
8 pages, 5 figures, conference proceedings on TAUP 2013