We use the results of direct and indirect searches for weakly interacting massive panicles (WIMPs) to obtain bounds on various electro-magnetic form factors of WIMPs. The limits on the recoil signal in underground dark matter detection experiments, with standard assumptions about the density and r.m.s. velocity of WIMPs in the halo, can be translated into the following model-independent bounds on the magnetic dipole, electric dipole, quadrupole and anapole moments and the polarizability of WIMPs: μ/μ(n) < 1.4 · 10-4, d<5 · 10-2 e cm, Q < 6 · 10-7 fm2, a/μ(n) <3 · 10-2 fm, and χ<5 · 10-8 fm3 for a WIMP mass of 100 GeV. The limits on fluxes of highly energetic neutrinos produced in the annihilation of WIMPs in the center of the earth and the sun lead to somewhat stronger, but more model dependent bounds. (C) 2000 Elsevier Science B.V.
|Original language||English (US)|
|Number of pages||6|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - May 4 2000|
Bibliographical noteFunding Information:
The authors would like to thank Keith Olive, Arkady Vainshtein and Viktor Zacek for usefull discussions. This work was supported in part by the Department of Energy under Grant No. DE-FG-02-94-ER-40823.