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Searches for the Violation of Pauli Exclusion Principle at LNGS in VIP(-2) experiment

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arxiv 1601.05828 v1 pith:XAC6EXXM submitted 2016-01-21 physics.ins-det quant-ph

Searches for the Violation of Pauli Exclusion Principle at LNGS in VIP(-2) experiment

H Shi , S. Bartalucci , S. Bertolucci , C. Berucci , A. M. Bragadireanu , M. Cargnelli , A. Clozza , C. Curceanu
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L. De Paolis S. Di Matteo A. d'Uffizi J.-P. Egger C. Guaraldo M. Iliescu T. Ishiwatari J. Marton M. Laubenstein E. Milotti D. Pietreanu K. Piscicchia T. Ponta A. Romero Vidal E. Sbardella A. Scordo D.L. Sirghi F. Sirghi L. Sperandio O. Vazquez Doce E. Widmann J. Zmeskal
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classification physics.ins-det quant-ph
keywords experimentexclusionpauliprincipleviolationelectronlngsvip-2
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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 $\times10^{-29}$ set by the VIP experiment. With upgraded detectors for high precision X-ray spectroscopy, the VIP-2 experiment will improve the sensitivity by two orders of magnitude.

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