Since the publication of the models describing a small violation of the Pauli exclusion principle (PEP) there has been an explosion of word-wide interest in PEP tests and related theories. PEP forbids an atom to have more than 2 electrons in the K-shell. If PEP is slightly violated, a third electron can occasionally join in. This would result in an anomalous X-ray emission. A high-sensitivity experiment places an upper limit of the order of 10^{-26} on the PEP violating parameter. I will outline the main theoretical and experimental ideas in this new exciting area.
Cite
@article{arxiv.hep-ph/0509258,
title = {X rays test the Pauli exclusion principle},
author = {A. Yu. Ignatiev},
journal= {arXiv preprint arXiv:hep-ph/0509258},
year = {2009}
}
Comments
12 pages, RevTeX4, Invited talk at the 20th International Conference on X-ray and Inner-shell Processes (Melbourne, Australia, 4-8 July, 2005)