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Magnetic monopoles at the LHC and in the Cosmos - Rencontres de ...

Magnetic monopoles at the LHC and in the Cosmos - Rencontres de ...

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Monopoles: <strong>in</strong>troductory remarks<br />

• Dirac argument (1931): existence of magnetic charge<br />

would expla<strong>in</strong> electric charge quantis<strong>at</strong>ion<br />

– Fundamental magnetic charge: g = 68.5N (N = 1,2,3...)<br />

• Coupl<strong>in</strong>g to <strong>the</strong> photon ≫ 1<br />

– Non-perturb<strong>at</strong>ive dynamics<br />

– Very large ionis<strong>at</strong>ion energy loss<br />

• <strong>Magnetic</strong> charge conserv<strong>at</strong>ion ensures th<strong>at</strong><br />

<strong>monopoles</strong> are stable <strong>and</strong> produced <strong>in</strong> pairs<br />

<strong>LHC</strong><br />

reach<br />

primordial GUT monopole<br />

Possible monopole mass rage (GeV)<br />

2

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