Testing the Pauli Exclusion Principle with the VIP-2 Experiment

被引：15

作者：

Napolitano, Fabrizio ^{[1
]}

Bartalucci, Sergio ^{[1
]}

Bertolucci, Sergio ^{[2
]}

Bazzi, Massimiliano ^{[1
]}

Bragadireanu, Mario ^{[1
,3
]}

Capoccia, Cesidio ^{[1
]}

Cargnelli, Michael ^{[4
]}

Clozza, Alberto ^{[1
]}

De Paolis, Luca ^{[1
]}

Del Grande, Raffaele ^{[1
,5
,6
,7
]}

Fiorini, Carlo ^{[8
,9
]}

Guaraldo, Carlo ^{[1
]}

Iliescu, Mihail ^{[1
]}

Laubenstein, Matthias ^{[10
]}

Marton, Johann ^{[1
,4
]}

Miliucci, Marco ^{[1
]}

Milotti, Edoardo ^{[11
,12
]}

Nola, Federico ^{[13
]}

Piscicchia, Kristian ^{[1
,5
,6
]}

Porcelli, Alessio ^{[1
,4
]}

Scordo, Alessandro ^{[1
]}

Sgaramella, Francesco ^{[1
]}

Shi, Hexi ^{[4
]}

Sirghi, Diana Laura ^{[1
,3
]}

Sirghi, Florin ^{[1
,3
]}

Doce, Oton Vazquez ^{[1
]}

Zmeskal, Johann ^{[4
]}

Curceanu, Catalina ^{[1
,3
]}

机构：

[1] Ist Nazl Fis Nucl INFN, Lab Nazl Frascati, Via E Fermi 54, I-00044 Rome, Italy

[2] Univ Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy

[3] Inst Natl Pentru Fiz & Ingn Nucl Horia Hulubei IF, Str Atomistilor 407,POB MG 6, RO-077125 Magurele, Romania

[4] Austrian Acad Sci, Stefan Meyer Inst Subatom Phys, Kegelgasse 27, A-1030 Vienna, Austria

[5] Museo Stor Fis, Ctr Ric Enrico Fermi, Via Panisperna 89a, I-00184 Rome, Italy

[6] Ctr Studi & Ric Enrico Fermi, Via Panisperna 89a, I-00184 Rome, Italy

[7] Tech Univ Munich, Phys Dept E62, James Franck Str 1, D-85748 Garching, Germany

[8] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, I-20133 Milan, Italy

[9] Ist Nazl Fis Nucl, Sez Milano, I-120133 Milan, Italy

[10] Ist Nazl Fis Nucl INFN, Lab Nazl Gran Sasso, Via G Acitelli 22, I-67100 Laquila, Italy

[11] Univ Trieste, Dipartimento Fis, Via Valerio 2, I-34127 Trieste, Italy

[12] Ist Nazl Fis Nucl, Sez Trieste, Via Valerio 2, I-34127 Trieste, Italy

[13] Univ Roma Tor Vergata, Macroarea Sci Matemat Fis & Nat, Via Cracovia 50, I-00133 Rome, Italy

来源：

SYMMETRY-BASEL | 2022年 / 14卷 / 05期

基金：

奥地利科学基金会; 欧盟地平线“2020”;

关键词：

Pauli Exclusion Principle; X-rays; VIP-2; fundamental symmetries; VIOLATION; CONNECTION; SEARCH; ATOMS; SPIN;

D O I：

10.3390/sym14050893

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Violations of the Pauli Exclusion Principle (PEP), albeit small, could be motivated by physics beyond the Standard Model, ranging from violation of Lorentz invariance to extra space dimensions. This scenario can be experimentally constrained through dedicated, state-of-the-art X-ray spectroscopy, searching for a forbidden atomic transition from the L shell to the K shell already occupied by two electrons. The VIP-2 Experiment located at the underground Gran Sasso National Laboratories of INFN (Italy) tests PEP violations by introducing new electrons via a direct current in a copper conductor, measuring the X-ray energies through a silicon drift detector. Bayesian and frequentist analyses of approximately six months of data taken with the fully operational setup is presented, setting the strongest limit to date on the PEP violation shown by the VIP collaboration. The upper bound on PEP violation are placed at 90% CL beta(2)/2 <= 6.8x10(-42) with the Bayesian approach, and beta(2)/2 <= 7.1x10(-42) with the frequentist CLs technique.

引用

页数：10

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