Search for Magnetic Monopoles in Polar Volcanic Rocks
2013 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 110, no 12, 121803Article in journal (Refereed) Published
For a broad range of values of magnetic monopole mass and charge, the abundance of monopoles trapped inside Earth would be expected to be enhanced in the mantle beneath the geomagnetic poles. A search for magnetic monopoles was conducted using the signature of an induced persistent current following the passage of igneous rock samples through a SQUID-based magnetometer. A total of 24.6 kg of rocks from various selected sites, among which 23.4 kg are mantle-derived rocks from the Arctic and Antarctic areas, was analyzed. No monopoles were found, and a 90% confidence level upper limit of 9.8 x 10(-5)/g is set on the monopole density in the search samples.
Place, publisher, year, edition, pages
2013. Vol. 110, no 12, 121803
Research subject Physics
IdentifiersURN: urn:nbn:se:su:diva-89798DOI: 10.1103/PhysRevLett.110.121803ISI: 000316682600002OAI: oai:DiVA.org:su-89798DiVA: diva2:620688