#### Monopole Production $-$ Other Accelerator Searches

MASS (GeV) CHG ${\mathrm {(\mathit g)}}$ SPIN ENERGY ${\mathrm {(GeV)}}$ BEAM DOCUMENT ID TECN
$>610$ ${}\geq{}$1 $0$ $1800$ ${{\mathit p}}{{\overline{\mathit p}}}$ 1
 1998 K
D0
$>870$ ${}\geq{}$1 1/2 $1800$ ${{\mathit p}}{{\overline{\mathit p}}}$ 1
 1998 K
D0
$>1580$ ${}\geq{}$1 $1$ $1800$ ${{\mathit p}}{{\overline{\mathit p}}}$ 1
 1998 K
D0
$>510$ $88 - 94$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ 2
 1995 C
L3
 1 ABBOTT 1998K search for heavy pointlike Dirac monopoles via central production of a pair of photons with high transverse energies.
 2 ACCIARRI 1995C finds a limit B( ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}$ ) $<0.8 \times 10^{-5}$ (which is possible via a monopole loop) at 95$\%$ CL and sets the mass limit via a cross section model.
References:
 ABBOTT 1998K
PRL 81 524 A Search for Heavy Pointlike Dirac Monopoles
 ACCIARRI 1995C
PL B345 609 Search for Anomalous ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \gamma}}$ Events at LEP