Consistency Conditions on the S-Matrix of Massless Particles

Details Consistency Conditions on the S-Matrix of Massless Particles Consistency Conditions on the S-Matrix of Massless Particles

2007-05-29

arxiv.org/abs/0705.4305v2

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 2 figures

Scientific paper

We introduce a set of consistency conditions on the S-matrix of theories of massless particles of arbitrary spin in four-dimensional Minkowski space-time. We find that in most cases the constraints, derived from the conditions, can only be satisfied if the S-matrix is trivial. Our conditions apply to theories where four-particle scattering amplitudes can be obtained from three-particle ones via a recent technique called BCFW construction. We call theories in this class constructible. We propose a program for performing a systematic search of constructible theories that can have non-trivial S-matrices. As illustrations, we provide simple proofs of already known facts like the impossibility of spin $s > 2$ non-trivial S-matrices, the impossibility of several spin 2 interacting particles and the uniqueness of a theory with spin 2 and spin 3/2 particles.

Affiliated with

Also associated with

No associations

Rating

Consistency Conditions on the S-Matrix of Massless Particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Consistency Conditions on the S-Matrix of Massless Particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Consistency Conditions on the S-Matrix of Massless Particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-356712