Lorentz Invariance And Unitarity Problem In Non-Commutative Field Theory

Details Lorentz Invariance And Unitarity Problem In Non-Commutative Field Theory Lorentz Invariance And Unitarity Problem In Non-Commutative Field Theory

2003-09-16

arxiv.org/abs/hep-th/0309155v3

Prog.Theor.Phys. 110 (2003) 989-1001

Physics

High Energy Physics

High Energy Physics - Theory

14 pages

Scientific paper

10.1143/PTP.110.989

It is shown that the one-loop two-point amplitude in {\it Lorentz-invariant}
non-commutative (NC) $\phi^3$ theory is finite after subtraction in the
commutative limit and satisfies the usual cutting rule, thereby eliminating the
unitarity problem in Lorentz-non-invariant NC field theory in the approximation
considered.

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