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Experimental search for the violation of Pauli exclusion principle: VIP-2 Collaboration.
Shi, H; Milotti, E; Bartalucci, S; Bazzi, M; Bertolucci, S; Bragadireanu, A M; Cargnelli, M; Clozza, A; De Paolis, L; Di Matteo, S; Egger, J-P; Elnaggar, H; Guaraldo, C; Iliescu, M; Laubenstein, M; Marton, J; Miliucci, M; Pichler, A; Pietreanu, D; Piscicchia, K; Scordo, A; Sirghi, D L; Sirghi, F; Sperandio, L; Vazquez Doce, O; Widmann, E; Zmeskal, J; Curceanu, C.
  • Shi H; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Milotti E; 2Stefan-Meyer-Institut für Subatomare Physik, Boltzmanngasse 3, 1090 Wien, Austria.
  • Bartalucci S; 12Present Address: Institut für Hochenergiephysik der Österreichischen Akademie der Wissenschaften, Nikolsdorfer Gasse 18, 1050 Wien, Austria.
  • Bazzi M; 3Dipartimento di Fisica, INFN-Sezione di Trieste, Università di Trieste, Via Valerio, 2, 34127 Trieste, Italy.
  • Bertolucci S; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Bragadireanu AM; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Cargnelli M; 4Dipartimento di Fisica e Astronomia, Università di Bologna, Viale Berti Pichat 6/2, Bologna, Italy.
  • Clozza A; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • De Paolis L; 5IFIN-HH, Institutul National Pentru Fizica si Inginerie Nucleara Horia Hulubbei, Reactorului 30, Magurele, Romania.
  • Di Matteo S; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Egger JP; 2Stefan-Meyer-Institut für Subatomare Physik, Boltzmanngasse 3, 1090 Wien, Austria.
  • Elnaggar H; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Guaraldo C; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Iliescu M; 6UMR 6251, IPR (Institut de Physique de Rennes), CNRS, Université de Rennes, 35000 Rennes, France.
  • Laubenstein M; 7Institut de Physique, Université de Neuchâtel, 1 Rue A.-L. Breguet, 2000 Neuchâtel, Switzerland.
  • Marton J; 8Debye Institute for Nanomaterial Science, Utrecht University, P.O. Box 80.000 , 3508 TA Utrecht, The Netherlands.
  • Miliucci M; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Pichler A; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Pietreanu D; 9INFN, Laboratori Nazionali del Gran Sasso, S.S. 17/bis, 67010 Assergi, AQ Italy.
  • Piscicchia K; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Scordo A; 2Stefan-Meyer-Institut für Subatomare Physik, Boltzmanngasse 3, 1090 Wien, Austria.
  • Sirghi DL; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Sirghi F; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Sperandio L; 2Stefan-Meyer-Institut für Subatomare Physik, Boltzmanngasse 3, 1090 Wien, Austria.
  • Vazquez Doce O; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Widmann E; 5IFIN-HH, Institutul National Pentru Fizica si Inginerie Nucleara Horia Hulubbei, Reactorului 30, Magurele, Romania.
  • Zmeskal J; 1INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, 00044 Rome, Italy.
  • Curceanu C; 10Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, 00183 Rome, Italy.
Eur Phys J C Part Fields ; 78(4): 319, 2018.
Article en En | MEDLINE | ID: mdl-29706795
ABSTRACT
The VIolation of Pauli exclusion principle -2 experiment, or VIP-2 experiment, at the Laboratori Nazionali del Gran Sasso searches for X-rays from copper atomic transitions that are prohibited by the Pauli exclusion principle. Candidate direct violation events come from the transition of a 2p electron to the ground state that is already occupied by two electrons. From the first data taking campaign in 2016 of VIP-2 experiment, we determined a best upper limit of [Formula see text] for the probability that such a violation exists. Significant improvement in the control of the experimental systematics was also achieved, although not explicitly reflected in the improved upper limit. By introducing a simultaneous spectral fit of the signal and background data in the analysis, we succeeded in taking into account systematic errors that could not be evaluated previously in this type of measurements.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2018 Tipo del documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2018 Tipo del documento: Article