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

H. Shi (1, 2) , S. Bartalucci (1) , S. Bertolucci (1) , C. Berucci (2, 1) , A.M. Bragadireanu , M. Cargnelli (2) , A. Clozza (1) , C. Curceanu (1, 3, 4) , L. de Paolis (1) , Sergio Di Matteo (5) , A. d'Ufflzi , J.-P. Egger (6) , C. Guaraldo (1) , M. Iliescu (1) , T. Ishiwatari (3) , J. Marton (2) , M. Laubenstein (7) , E. Milotti (8) , D. Pietreanu (1, 3) , K. Piscicchia (1, 4) , T. Ponta (3) , A.R. Vidal , E. Sbardella (1) , A. Scordo (1) , D.L. Sirghi , F. Sirghi (1, 3) , L. Sperandio (1) , O.V. Doce , E. Widmann (2) , J. Zmeskal (2)

1 LNF - Laboratori Nazionali di Frascati
2 SMI - Stefan Meyer Institut für subatomare Physik
3 NIPNE - Horia Hulubei National Institute of Physics and Nuclear Engineering
4 Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
5 IPR - Institut de Physique de Rennes
6 UNINE - Université de Neuchâtel
7 LNGS - Laboratori Nazionali del Gran Sasso
8 Dipartimento di Fisica [Trieste]

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.

Keywords: Ground state; X ray spectroscopy; Atomic state; Follow up; High-precision; Orders of magnitude; Pauli exclusion principle; Quantum theory

Domains: Physics [physics]

H. Shi, S. Bartalucci, S. Bertolucci, C. Berucci, A.M. Bragadireanu, et al.. Searches for the violation of Pauli exclusion principle at LNGS in VIP(-2) experiment. 14th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2015, Sep 2015, Torino, Italy. pp.42055, ⟨10.1088/1742-6596/718/4/042055⟩. ⟨hal-01372788⟩