Signals for noncommutative interactions at linear colliders

Jo Anne L. Hewett*, Frank J. Petriello, Thomas G. Rizzo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

135 Scopus citations


Recent theoretical results have demonstrated that noncommutative geometries naturally appear within the context of string or 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 parametrize the effects of noncommutative space-time coordinates and show that they lead to observable signatures in several 2→2 QED processes in e+e- collisions. In particular, we examine pair annihilation, Moller and Bhabha scattering, as well as γγ→γγ scattering and show that non-commutative scales of order a TeV can be probed at high energy linear colliders.

Original languageEnglish (US)
Article number075012
JournalPhysical Review D
Issue number7
StatePublished - 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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