تقرير
Search for Pauli Exclusion Principle Violations with Gator at LNGS
| العنوان: | Search for Pauli Exclusion Principle Violations with Gator at LNGS |
|---|---|
| المؤلفون: | Baudis, L., Biondi, R., Bismark, A., Clozza, A., Curceanu, C., Galloway, M., Napolitano, F., Piastra, F., Piscicchia, K., Porcelli, A., García, D. Ramírez |
| سنة النشر: | 2024 |
| المجموعة: | Nuclear Experiment Quantum Physics |
| مصطلحات موضوعية: | Nuclear Experiment, Quantum Physics |
| الوصف: | The Pauli Exclusion Principle (PEP) appears from fundamental symmetries in quantum field theories, but its physical origin is still to be understood. High-precision experimental searches for small PEP violations permit testing key assumptions of the Standard Model with high sensitivity. We report on a dedicated measurement with Gator, a low-background, high-purity germanium detector operated at the Laboratori Nazionali del Gran Sasso, aimed at testing PEP-violating atomic transitions in lead. The experimental technique, relying on forming a new symmetry state by introducing electrons into the pre-existing electron system through a direct current, satisfies the conditions of the Messiah-Greenberg superselection rule. No PEP violation has been observed, and an upper limit on the PEP violation probability of $\beta^2/2 < 4.8 \cdot 10^{-29}$ (90% CL) is set. This improves the previous constraint from a comparable measurement by more than one order of magnitude. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2408.02500 |
| رقم الأكسشن: | edsarx.2408.02500 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |