Experimental search for the violation of Pauli exclusion principle

被引：24

作者：

Shi, H. ^{[1
,2
,13
]}

Milotti, E. ^{[3
]}

Bartalucci, S. ^{[1
]}

Bazzi, M. ^{[1
]}

Bertolucci, S. ^{[4
]}

Bragadireanu, A. M. ^{[1
,5
]}

Cargnelli, M. ^{[1
,2
]}

Clozza, A. ^{[1
]}

De Paolis, L. ^{[1
]}

Di Matteo, S. ^{[6
]}

Egger, J-P ^{[7
]}

Elnaggar, H. ^{[8
]}

Guaraldo, C. ^{[1
]}

Iliescu, M. ^{[1
]}

Laubenstein, M. ^{[9
]}

Marton, J. ^{[1
,2
]}

Miliucci, M. ^{[1
]}

Pichler, A. ^{[1
,2
]}

Pietreanu, D. ^{[1
,5
]}

Piscicchia, K. ^{[1
,10
,11
]}

Scordo, A. ^{[1
]}

Sirghi, D. L. ^{[1
,5
]}

Sirghi, F. ^{[1
,5
]}

Sperandio, L. ^{[1
]}

Doce, O. Vazquez ^{[1
,12
]}

Widmann, E. ^{[2
]}

Zmeskal, J. ^{[1
,2
]}

Curceanu, C. ^{[1
,5
,10
,11
]}

机构：

[1] Ist Nazl Fis Nucl, Lab Nazl Frascati, Via E Fermi 40, I-00044 Rome, Italy

[2] Stefan Meyer Inst Subatomare Phys, Boltzmanngasse 3, A-1090 Vienna, Austria

[3] Univ Trieste, INFN, Dipartimento Fis, Sez Trieste, Via Valerio 2, I-34127 Trieste, Italy

[4] Univ Bologna, Dipartimento Fis & Astron, Viale Beal Pichat 6-2, Bologna, Italy

[5] Inst Natl Pentru Fiz & Ingn Nucl Horia Hulubbei, IFIN HH, Reactontlui 30, Magurele, Romania

[6] Univ Rennes, CNRS, IPR, UMR 6251, F-35000 Rennes, France

[7] Univ Neuchatel, Inst Phys, 1 Rue AL Breguet, CH-2000 Neuchatel, Switzerland

[8] Univ Utrecht, Debye Inst Nanomat Sci, POB 80-000, NL-3508 TA Utrecht, Netherlands

[9] INFN, Lab Nazl Gran Sasso, SS 17 Bis, I-67010 Assergi, AQ, Italy

[10] Museo Stor Fis, Piazza Viminale 1, I-00183 Rome, Italy

[11] Ctr Studi & Ric Enrico Fermi, Piazza Viminale 1, I-00183 Rome, Italy

[12] Tech Univ Munich, Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany

[13] Austrian Acad Sci, Inst Hochenergiephys, Nikolsdorfer Gasse 18, A-1050 Vienna, Austria

来源：

EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 04期

基金：

奥地利科学基金会;

关键词：

SILICON DRIFT DETECTORS; TRANSITION ENERGIES; EXPERIMENTAL LIMIT;

D O I：

10.1140/epjc/s10052-018-5802-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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 3.4 x 10(-29) 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.

引用

页数：14

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