Conference paper Open Access

VIP2 in LNGS - Testing the Pauli Exclusion Principle for electrons with high sensitivity

Marton, J.; Pichler, A.; Amirkhani, A.; Bartalucci, S.; Bazzi, M.; Bertolucci, S.; Bragadireanu, M.; Cargnelli, M.; Clozza, A.; Curceanu, C.; Del Grande, R.; De Paolis, L.; Egger, J. P.; Fiorini, C.; Guaraldo, C.; Iliescu, M.; Laubenstein, M.; Milotti, E.; Miliucci, M.; Pietreanu, D.; Piscicchia, K.; Scordo, A.; Shi, H.; Sirghi, D.; Sirghi, F.; Sperandio, L.; Vazquez Doce, O.; Zmeskal, J.


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        "affiliation": "Stefan Meyer Institute for subatomic physics, Boltzmanngasse 3, 1090 Vienna, Austria", 
        "name": "Marton, J."
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        "affiliation": "Stefan Meyer Institute for subatomic physics, Boltzmanngasse 3, 1090 Vienna, Austria", 
        "name": "Pichler, A."
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        "affiliation": "Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria and INFN Sezione di Milano, Milano, Italy", 
        "name": "Amirkhani, A."
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        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Bartalucci, S."
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        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Bazzi, M."
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      {
        "affiliation": "University and INFN Bologna, Via Irnerio 46, I-40126, Bologna, Italy", 
        "name": "Bertolucci, S."
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      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy;  Horia Hulubei National Institute of Physics and Nuclear Engineering, Str. Atomistilor no. 407, P.O. Box MG-6, Bucharest - Magurele, Romania", 
        "name": "Bragadireanu, M."
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        "affiliation": "Stefan Meyer Institute for subatomic physics, Boltzmanngasse 3, 1090 Vienna, Austria", 
        "name": "Cargnelli, M."
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        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Clozza, A."
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      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy; Horia Hulubei National Institute of Physics and Nuclear Engineering, Str. Atomistilor no. 407, P.O. Box MG-6, Bucharest - Magurele, Romania; Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche \"Enrico Fermi\", Roma, Italy", 
        "name": "Curceanu, C."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Del Grande, R."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "De Paolis, L."
      }, 
      {
        "affiliation": "Institut de Physique, Universit\u00e9 de Neuch\u00e2tel 1 rue A.-L. Breguet, CH-2000 Neuch\u00e2tel, Switzerland", 
        "name": "Egger, J. P."
      }, 
      {
        "affiliation": "Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria and INFN Sezione di Milano, Milano, Italy", 
        "name": "Fiorini, C."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Guaraldo, C."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Iliescu, M."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali del Gran Sasso, S.S. 17/bis, I-67010 Assergi (AQ), Italy", 
        "name": "Laubenstein, M."
      }, 
      {
        "affiliation": "Dipartimento di Fisica, Universit\u00e0 di Trieste and INFN Sezione di Trieste, Via Valerio, 2, I-34127 Trieste, Italy", 
        "name": "Milotti, E."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Miliucci, M."
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      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy; Horia Hulubei National Institute of Physics and Nuclear Engineering, Str. Atomistilor no. 407, P.O. Box MG-6, Bucharest - Magurele, Romania", 
        "name": "Pietreanu, D."
      }, 
      {
        "affiliation": "Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche \"Enrico Fermi\", Roma, Italy; INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Piscicchia, K."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Scordo, A."
      }, 
      {
        "affiliation": "Institut f\u00fcr Hochenergiephysik, Nikolsdorfergasse 18, 1050 Vienna, Austria", 
        "name": "Shi, H."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy; Horia Hulubei National Institute of Physics and Nuclear Engineering, Str. Atomistilor no. 407, P.O. Box MG-6, Bucharest - Magurele, Romania", 
        "name": "Sirghi, D."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy; Horia Hulubei National Institute of Physics and Nuclear Engineering, Str. Atomistilor no. 407, P.O. Box MG-6, Bucharest - Magurele, Romania", 
        "name": "Sirghi, F."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy", 
        "name": "Sperandio, L."
      }, 
      {
        "affiliation": "INFN, Laboratori Nazionali di Frascati, CP 13, Via E. Fermi 40, I-00044, Frascati (Roma), Italy; Excellence Cluster Universe, Technische Universit\u00e4t M\u00fcnchen, Boltzmannstra\u00dfe 2, D-85748 Garching, Germany", 
        "name": "Vazquez Doce, O."
      }, 
      {
        "affiliation": "Stefan Meyer Institute for subatomic physics, Boltzmanngasse 3, 1090 Vienna, Austria", 
        "name": "Zmeskal, J."
      }
    ], 
    "description": "<p>The VIP2 (VIolation of the Pauli Exclusion Principle) experiment at the Gran Sasso underground laboratory (LNGS) is searching for possible violations of standard quantum mechanics predictions in atoms at very high sensitivity. We investigate atomic transitions with precision X-ray spectroscopy in order to test the Pauli Exclusion Principle (PEP) and therefore the related spin-statistics theorem. We will present our experimental method for the search for &quot;anomalous&quot; (i.e. Pauli-forbidden) X-ray transitions in copper atoms, produced by &quot;new&quot; electrons, which could have tiny probability to undergo Pauli-forbidden transition to the ground state already occupied by two electrons. We will describe the VIP2 experimental setup, which is taking data at LNGS presently. The goal of VIP2 is to test the PEP for electrons with unprecedented accuracy, down to a limit in the probability that PEP is violated at the level of 10<sup>&minus;31</sup>. We will present current experimental results and discuss implications of a possible violation.</p>", 
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