Search for an axionlike spin coupling using a paramagnetic salt with a dc SQUID

Authors
Ni, WT Pan, SS Yeh, HC Hou, LS Wan, JL
Citation
Wt. Ni et al., Search for an axionlike spin coupling using a paramagnetic salt with a dc SQUID, PHYS REV L, 82(12), 1999, pp. 2439-2442
Citations number
38
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
12
Year of publication
1999
Pages
2439 - 2442
Database
ISI
SICI code
0031-9007(19990322)82:12<2439:SFAASC>2.0.ZU;2-0
Abstract
We use a paramagnetic salt TbF3 with a dc SQUID to search for a possible ax ionlike sigma.r interaction of a rotating copper mass with the salt. We set new Emits on the axion coupling constant g(s)g(p)/(h) over bar c and the f inite-range Leitner-Okubo-Bari Dass coupling constant A. Our limit for rang e lambda at 30 mm is 2 orders of magnitude better than previous results. Fo r lambda > 30 mm, g(s)g(p)/(h) over bar c is (0.14 +/- 0.67) x 10(-28), and A is less than 10. The outlook for further improvement is discussed.