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Signals for Non-Commutative Interactions at Linear Colliders

J. L. Hewett·F. J. Petriello·T. G. Rizzo
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Abstract

Recent theoretical results have demonstrated that non-commutative geometries naturally appear within the context of string/M-theory. One consequence of this possibility is that QED takes on a non-abelian nature due to the introduction of 3- and 4-point functions. In addition, each QED vertex acquires a momentum dependent phase factor. We parameterize the effects of non-commutative space-time co-ordinates and show that they lead to observable signatures in several $2\to 2$ QED processes in $e^+e^-$ collisions. In particular, we examine pair annihilation, Moller and Bhabha scattering, as well as $γγ\toγγ$ scattering and show that non-commutative scales of order a TeV can be probed at high energy linear colliders.

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J. L. Hewett, F. J. Petriello, T. G. Rizzo. 2001-01-29. Signals for Non-Commutative Interactions at Linear Colliders. https://doi.org/10.1103/physrevd.64.075012

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