Application of photon detectors in the VIP2 experiment to test the Pauli Exclusion Principle

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

doi:10.1088/1742-6596/718/5/052030

Article
Report number	arXiv:1602.00898
Title	Application of photon detectors in the VIP2 experiment to test the Pauli Exclusion Principle
Author(s)	Pichler, A. (Stefan Meyer Inst. Subatomare Phys.) ; Bartalucci, S. (Frascati) ; Bazzi, M. (Frascati) ; Bertolucci, S. (CERN) ; Berucci, C. (Stefan Meyer Inst. Subatomare Phys. ; Frascati) ; Bragadireanu, M. (Frascati ; Bucharest, IFIN-HH) ; Cargnelli, M. (Stefan Meyer Inst. Subatomare Phys.) ; Clozza, A. (Frascati) ; Curceanu, C. (Frascati ; Bucharest, IFIN-HH) ; De Paolis, L. (Frascati) ; Di Matteo, S. (Rennes U.) ; D'Ufflzi, A. (Frascati) ; Egger, J.P. (Neuchatel U.) ; Guaraldo, C. (Frascati) ; Iliescu, M. (Frascati) ; Ishiwatari, T. (Stefan Meyer Inst. Subatomare Phys.) ; Laubenstein, M. (Gran Sasso) ; Marton, J. (Stefan Meyer Inst. Subatomare Phys.) ; Milotti, E. (Trieste U. ; INFN, Trieste) ; Pietreanu, D. (Frascati ; Bucharest, IFIN-HH) ; Piscicchia, K. (Frascati ; Enrico Fermi Ctr., Rome) ; Ponta, T. (Frascati) ; Sbardella, E. (Frascati) ; Scordo, A. (Frascati) ; Shi, H. (Frascati) ; Sirghi, D. (Bucharest, IFIN-HH) ; Sirghi, F. (Frascati ; Bucharest, IFIN-HH) ; Sperandio, L. (Frascati) ; Vazquez-Doce, O. (Munich, Tech. U., Universe) ; Widmann, E. (Stefan Meyer Inst. Subatomare Phys.) ; Zmeskal, J. (Stefan Meyer Inst. Subatomare Phys.)
Publication	2016-06-09
Imprint	02 Feb 2016
Number of pages	5
In:	J. Phys.: Conf. Ser. 718 (2016) 052030
In:	14th International Conference on Topics in Astroparticle and Underground Physics, Torino, Italy, 7 - 11 Sep 2015, pp.052030
DOI	10.1088/1742-6596/718/5/052030
Subject category	Detectors and Experimental Techniques
Abstract	The Pauli Exclusion Principle (PEP) was introduced by the austrian physicist Wolfgang Pauli in 1925. Since then, several experiments have checked its validity. From 2006 until 2010, the VIP (VIolation of the Pauli Principle) experiment took data at the LNGS underground laboratory to test the PEP. This experiment looked for electronic 2p to 1s transitions in copper, where 2 electrons are in the 1s state before the transition happens. These transitions violate the PEP. The lack of detection of X-ray photons coming from these transitions resulted in a preliminary upper limit for the violation of the PEP of $4.7 \times 10^{-29}$. Currently, the successor experiment VIP2 is under preparation. The main improvements are, on one side, the use of Silicon Drift Detectors (SDDs) as X-ray photon detectors. On the other side an active shielding is implemented, which consists of plastic scintillator bars read by Silicon Photomultipliers (SiPMs). The employment of these detectors will improve the upper limit for the violation of the PEP by around 2 orders of magnitude.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2016-2024 The Author(s) (License: CC-BY-3.0)