Abstract
We prove the existence of an analogue of the Jost-Lehmann-Dyson representation in noncommutative quantum field theory for the case where the noncommutativity affects only the spatial variables. Using this representation, we show that there is a certain class of elastic scattering amplitudes that have an analytic continuation to the complex cos ϑ plane with the Martin ellipse as the related analyticity domain. Using the analyticity in the angular variable and the unitarity as a basis, we establish an analogue of the Froissart—Martin bound for the total cross section in the noncommutative case.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 142, No. 2, pp. 388–403, February, 2005.
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Vernov, Y.S., Mnatsakanova, M.N. Jost-Lehmann-Dyson representation, analyticity in the angular variable, and upper bounds in noncommutative quantum field theory. Theor Math Phys 142, 324–336 (2005). https://doi.org/10.1007/s11232-005-0015-z
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DOI: https://doi.org/10.1007/s11232-005-0015-z