Direct and indirect limits on the electro-magnetic form factors of WIMPs

Maxim Pospelov, Tonnis Ter Veldhuis

Research output: Contribution to journalArticlepeer-review

100 Scopus citations

Abstract

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 languageEnglish (US)
Pages (from-to)181-186
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume480
Issue number1-2
DOIs
StatePublished - May 4 2000

Bibliographical note

Funding 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.

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