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Monopole Density $-$ Matter Searches

DENSITY

CHG ${\mathrm {(\mathit g)}}$

MATERIAL

DOCUMENT ID

TECN

$ \text{<9.8E-5/gram} $

${}\geq{}$1

Polar rock

INDU

$ \text{<6.9E-6/gram} $

$>$1/3

Meteorites and other

INDU

$ \text{<2.E-7/gram} $

>0.6

${}^{}\mathrm {Fe}$ ore

INDU

$ \text{<4.6E-6/gram} $

$>0.5$

deep schist

INDU

$ \text{<1.6E-6/gram} $

$>0.5$

manganese nodules

INDU

$ \text{<1.3E-6/gram} $

$>0.5$

seawater

INDU

$ \text{>1.E+14/gram} $

$>$1/3

iron aerosols

SPEC

$ \text{<6.E-4/gram} $

air, seawater

CNTR

$ \text{<5.E-1/gram} $

>0.04

11 materials

INDU

$ \text{<2.E-4/gram} $

>0.05

moon rock

INDU

$ \text{<6.E-7/gram} $

<140

seawater

CNTR

$ \text{<1.E-2/gram} $

<120

manganese nodules

PLAS

$ \text{<1.E-4/gram} $

>0

manganese

PLAS

$ \text{<2.E-3/gram} $

$<1-$3

magnetite, meteor

EMUL

$ \text{<2.E-2/gram} $

meteorite

CNTR

¹	Mass $1 \times 10^{14}-1 \times 10^{17}$ GeV.

²	KOVALIK 1986 examined 498 kg of schist from two sites which exhibited clear mineralogical evidence of having been buried at least 20$~$km deep and held below the Curie temperature.

References:

PRL 110 121803

Search for Magnetic Monopoles in Polar Volcanic Rocks

PRL 75 1443

Search for Magnetic Monopoles Trapped in Matter

PRL 76 159 (erratum)

Erratum: JEON 1995 Search for Magnetic Monopoles Trapped in Matter

PR D36 3359

Search for Magnetic Monopoles Trapped in Old Iron Ores Using a Superconducting Detector

JP G11 883

New Limit on the Magnetic Monopole Density in Old Iron Ore

PR A33 1183

New Superconducting Quantum Interface Device Based Constraints on the Abundance of Magnetic Monopoles Trapped in Matter: An Investigation of Deeply Buried Rocks

PL 130B 331

The Magnetic Charge Phenomenon on Ferromagnetic Aerosols

PR D13 1823

Search for Misplaced Magnetic Monopoles

Thesis

The use of Superconducting Shields for Generating Ultra-Low Magnetic Field Regions $−$ and Several Related Experiments

PR D8 698

Search for Magnetic Monopoles in Lunar Material using an Electromagnetic Detector

PR D4 3260

Search for Magnetic Monopoles in Lunar Material

SCI 167 701

Search for Magnetic Monopoles in Lunar Sample

PR D4 1285

Search for Magnetic Monopoles

PR 177 2029

Search for Multiply Charged Dirac Magnetic Poles

PR 184 1393

Search for Magnetic Monopoles in Deep Ocean Deposits

PR 132 387

Search for Ferromagnetically Trapped Magnetic Monopoles of Cosmic-Ray Origin

NP 49 87

Search for the Dirac Monopole

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