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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:04 |
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Conference: Bucharest University Faculty of Physics 2005 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
The VIP Experiment
Authors:
D. L. Sirghi, F. Sirghi, on behalf of VIP Collaboration
Affiliation:
Institute of Physics and Nuclear Engineering ``Horia Hulubei``, IFIN-HH,
Particle Physics Department, P.O. Box MG-6, R-76900 Magurele, Bucharest, Romania
INFN, Laboratori Nazionali di Frascati, C. P. 13, Via E. Fermi 40, I-00044
Frascati, Italy}
E-mail
sirghi@lnf.infn.it
Keywords:
Quantum Mechanics, Pauli Principle, anomalous atomic transitions measurements
Abstract:
The Pauli Exclusion Principle (PEP) is a basic principle of Quantum Mechanics, and its validity has never been seriously challenged. However, given its importance, it is very important to check it as thoroughly as possible. The recently aproved VIP (VIolation of Pep) experiment, represents an improved version of the Ramberg and Snow experiment (Ramberg and Snow, Phys. Lett. B238 (1990) 438). VIP shall be performed at the Gran Sasso underground laboratories, and aims to test the Pauli Exclusion Principle for electrons with unprecedented accuracy. VIP is a Collaboration among four Institutions out of three countries (LNF-INFN, and INFN Trieste Italy; SMI-Vienna, Austria; IFIN-HH, Bucharest, Romania). It uses an apparatus with CCDs (Charge Coupled Device) as detectors of X rays - looking for PEP violating transitions in Copper: transitions from the 2p level to 1s with the 1s already occupied by 2 electrons. The characteristic of such transition is the energy - displaced with respect to the normal 2p->1s one by about 300 eV. VIP will bring the limit on the probability that PEP is violated by electrons to 10**-30, exploring so a region where new theories allow for a possible PEP violation.
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