Searches for the violation of Pauli exclusion principle at LNGS in VIP(-2) experiment

Shi, H.; Bartalucci, S.; Bertolucci, S.; Berucci, C.; Bragadireanu, A. M.; Cargnelli, M.; Clozza, A.; Curceanu, C.; De Paolis, L.; Di Matteo, S.; D'Ufflzi, A.; Egger, J. P.; Guaraldo, C.; Iliescu, M.; Ishiwatari, T.; Marton, J.; Laubenstein, M.; Milotti, Edoardo; Pietreanu, D.; Piscicchia, K.; Ponta, T.; Vidal, A. Romero; Sbardella, E.; Scordo, A.; Sirghi, D. L.; Sirghi, F.; Sperandio, L.; Doce, O. Vazquez; Widmann, E.; Zmeskal, J.

doi:10.1088/1742-6596/718/4/042055

The VIP (Violation of Pauli exclusion principle) experiment and its follow-up experiment VIP-2 at the Laboratori Nazionali del Gran Sasso (LNGS) search for X-rays from Cu atomic states that are prohibited by the Pauli Exclusion Principle (PEP). The candidate events, if they exist, will originate from the transition of a 2p orbit electron to the ground state which is already occupied by two electrons. The present limit on the probability for PEP violation for electron is 4.7 ×10^-29 set by the VIP experiment. With upgraded detectors for high precision X-ray spectroscopy, the VIP-2 experiment will improve the sensitivity by 2 orders of magnitude.

Searches for the violation of Pauli exclusion principle at LNGS in VIP(-2) experiment / Shi, H., Bartalucci, S., Bertolucci, S., Berucci, C., Bragadireanu, A.M., Cargnelli, M., Clozza, A., Curceanu, C., De Paolis, L., Di Matteo, S., D'Ufflzi, A., Egger, J.P., Guaraldo, C., Iliescu, M., Ishiwatari, T., Marton, J., Laubenstein, M., Milotti, E., Pietreanu, D., Piscicchia, K., et al.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - STAMPA. - 718:4(2016), pp. 042055.1-042055.5. [10.1088/1742-6596/718/4/042055]