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Dirac magnetic monopole production from photon fusion in proton collisions

Authors:	T Dougall and S D Wick

Institution:	(1) Department of Physics, Southern Methodist University, 75275 Dallas, TX, USA;(2) Department of Physics, Lake Forest College, 60045 Lake Forest, IL, USA

Abstract:	We calculate the lowest-order cross-section for Dirac magnetic monopole production from photon fusion ( $\gamma$ $\gamma$ in p $\bar{{p}}$ collisions at $\sqrt{{s}}$ = 1.96 TeV, pp collisions at $\sqrt{{s}}$ = 14 TeV, and we compare $\gamma$ $\gamma$ with Drell-Yan (DY) production. We find the total $\gamma$ $\gamma$ cross-section is comparable with DY at $\sqrt{{s}}$ = 1.96 TeV and dominates DY by a factor > 50 at $\sqrt{{s}}$ = 14 TeV. We conclude that both the $\gamma$ $\gamma$ and DY processes allow for a monopole mass limit m > 370 GeV based upon the null results of the recent monopole search at the Collider Detector at Fermilab (CDF). We also conclude that $\gamma$ $\gamma$ production is the leading mechanism to be considered for direct monopole searches at the Large Hadron Collider (LHC).

Keywords:	PACS" target="_blank">PACS 14 80 Hv Magnetic monopoles
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