Search for the violation of Pauli exclusion principle at LNGS

H. Shi (1) , S. Bartalucci (1) , M. Bazzi (1) , S. Bertolucci (2) , A.M. Bragadireanu (1) , M. Cargnelli (1) , A. Clozza (1) , C. Curceanu (1) , L. de Paolis (1) , Sergio Di Matteo (3) , J.-P. Egger (4) , C. Guaraldo (1) , M. Iliescu (1) , J. Marton (1) , M. Laubenstein (1) , E. Milotti (1) , A. Pichler (1) , D. Pietreanu (1) , K. Piscicchia (1) , A. Scordo (1) , D.L. Sirghi (1) , F. Sirghi (1) , L. Sperandio (1) , O. Vazquez Doce (1) , E. Widmann (5) , J. Zmeskal (1)

1 INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2 Dipartimento di Fisica e Astronomia [Bologna]
3 IPR - Institut de Physique de Rennes
4 UNINE - Université de Neuchâtel = University of Neuchatel
5 SMI - Stefan Meyer Institut für subatomare Physik

In the VIP (VIolation of Pauli exclusion principle) and its follow-up VIP-2 experiments at the Laboratori Nazionali del Gran Sasso, we test the validity of the Pauli Exclusion Principle, by searching for x-rays from copper atomic transitions from a 2p orbit electron to the ground state which is already occupied by two electrons. Such transitions are prohibited by the Pauli Exclusion Principle. The physics run of the VIP-2 experiment started in late 2016 and will collect data for three years. From the first data taking period of two months we have obtained a new limit better than the VIP result from three years of running. In this article we present the published first physics result from the VIP-2 experiment and discuss about the future perspectives. © The Authors, published by EDP Sciences.

Domaines: Physique [physics]

H. Shi, S. Bartalucci, M. Bazzi, S. Bertolucci, A.M. Bragadireanu, et al.. Search for the violation of Pauli exclusion principle at LNGS. 6th International Conference on New Frontiers in Physics, ICNFP 2017, Aug 2017, Kolymbari, Greece. pp.02118, ⟨10.1051/epjconf/201818202118⟩. ⟨hal-01881044⟩