VIP-2 with modulated current: pathfinder for enhanced Pauli exclusion principle violation studies

被引：0

作者：

Porcelli, Alessio ^{[1
,2
,3
,4
]}

Bazzi, Massimiliano ^{[1
]}

Bortolotti, Nicola ^{[1
,2
,3
,5
]}

Bragadireanu, Mario ^{[1
,6
]}

Cargnelli, Michael ^{[1
,7
]}

Clozza, Alberto ^{[1
]}

De Paolis, Luca ^{[1
]}

Del Grande, Raffaele ^{[1
,8
]}

Guaraldo, Carlo ^{[1
]}

Iliescu, Mihail ^{[1
]}

Laubenstein, Matthias ^{[9
]}

Manti, Simone ^{[1
]}

Marton, Johann ^{[1
,7
]}

Miliucci, Marco ^{[1
,10
]}

Napolitano, Fabrizio ^{[1
]}

Piscicchia, Kristian ^{[1
,2
,3
]}

Scordo, Alessandro ^{[1
]}

Sgaramella, Francesco ^{[1
]}

Sirghi, Diana Laura ^{[1
,2
,3
,6
]}

Sirghi, Florin ^{[1
,6
]}

Doce, Oton Vazquez ^{[1
]}

Zmeskal, Johann ^{[1
,7
]}

Curceanu, Catalina ^{[1
,6
]}

机构：

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

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

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

[4] Jagiellonian Univ, Fac Phys Astron & Appl Comp Sci, Ul Prof Stanislawa Lojasiewicza 11, PL-30348 Krakow, Poland

[5] Sapienza Univ Rome, Phys Dept, Piazzale Aldo Moro 5, I-00185 Rome, Italy

[6] Inst Natl pentru Fiz & Ingn Nucl Horia Hulubei, IFIN HH, 30 Reactorului, Magurele 077125, Romania

[7] Austrian Acad Sci, Stefan Meyer Inst Subatom Phys, Wiesingerstr 4, A-1010 Vienna, Austria

[8] Tech Univ Munich, Excellence Cluster Universe, Arcisstr 21, D-80333 Munich, Germany

[9] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Via G Acitelli 22, I-67100 Assergi, Italy

[10] Agenzia Spaziale Italiana, Via Politecn Snc, I-00133 Rome, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 03期

基金：

奥地利科学基金会;

关键词：

MARKOV-CHAINS; LIMIT;

D O I：

10.1140/epjc/s10052-024-12599-8

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：

Fermions are subject to the Pauli Exclusion Principle (PEP), which is grounded on the spin-statistics theorem and, hence, related to the very same structure of the underlying symmetries. The VIP-2 (VIolation of Pauli exclusion principle - 2) experiment has been performing extreme sensitivity tests of the PEP, up to its current and final configuration, exploiting several experimental setups designed to study different theoretical models of PEP violation, looking for a faint signal of physics Beyond the Standard Model.A current is introduced in the copper target to bring new electrons into the system and, hence, fulfill the requirements of the Messiah-Greenberg Super-Selection rule. The searched spin-statistics violating signal corresponds to X-rays emitted when the new electrons perform atomic transitions to the already filled fundamental level of copper. This work analyzes the set of the VIP-2 data corresponding to a test run of 68 days in a current modulated regime alternating no current with current data-taking in short periods (50 s each), instead the usual alternating months-long data-taking of each of these two phases. We propose an analysis method to improve the experiment's sensitivity: a spectral analysis constraint with the Discrete Fourier Transformation of the data. Compared to the spectrum-only analysis, about a factor of 1.5 of improvement to the limit for the probability of PEP violation for electrons was obtained.

引用

页数：9

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