ISSN:
1434-601X
Keywords:
11.30.Ly
;
36.10.−k
;
7.75+h
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The Pauli exclusion principle was tested by searching with accelerator mass spectrometry for non-Paulian atoms with three electrons in theK-shell and for non-Paulian nuclei with three protons or three neutrons in the nuclear 1 s1/2 shell. For non-Paulian atoms of $${}^{20}\widetilde{Ne}$$ and $${}^{36}\widetilde{Ar}$$ the following limits have been obtained: $$N({}^{20}\widetilde{Ne})/N({}^{20}Ne)〈 2 \cdot 10^{ - 21}$$ and $$N({}^{36}\widetilde{Ar})/N({}^{36}Ar)〈 4 \cdot 10^{ - 17}$$ . For non-Paulian nuclei of $${}^5\widetilde{Li}$$ and $${}^5\widetilde{He}$$ with three protons or three neutrons, respectively, in the nuclear 1 s1/2 shell the following limits have been measured: $$N({}^5\widetilde{Li})/N({}^6Li)〈 0.8 \cdot 10^{ - 17}$$ for a range of proton separation energies of $${}^5\widetilde{Li}$$ between 0 and 50 MeV and $$N({}^5He)/N({}^4He)〈 2 \cdot 10^{ - 15}$$ for neutron separation energies between 0 and 32 MeV. The result for5Li is used to deduce a limit for the probability β2/2 of finding two colliding protons in the symmetric state with respect to exchange to be β2/2〈0.5.10−32.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01290329
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