Search for an Axionlike Spin Coupling Using a Paramagnetic Salt with a dc SQUID

Details Search for an Axionlike Spin Coupling Using a Paramagnetic Salt with a dc SQUID Search for an Axionlike Spin Coupling Using a Paramagnetic Salt with a dc SQUID

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrvl..82.2439n&link_type=abstract

Physical Review Letters, Volume 82, Issue 12, March 22, 1999, pp.2439-2442

Physics

45

Scientific paper

We use a paramagnetic salt TbF3 with a dc SQUID to search for a possible axionlike σ˙r interaction of a rotating copper mass with the salt. We set new limits on the axion coupling constant gsgp/ħc and the finite-range Leitner-Okubo-Hari Dass coupling constant A. Our limit for range λ at 30 mm is 2 orders of magnitude better than previous results. For λ>30 mm, gsgp/ħc is \(0.14+/-0.67\)×10-28, and A is less than 10. The outlook for further improvement is discussed.

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