Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-06-27
Physics
High Energy Physics
High Energy Physics - Theory
68 pages, LaTeX. Appendix on off-shell vertices and conserved (Bose and Fermi) currents added, typos corrected, references add
Scientific paper
String Theory includes a plethora of higher-spin excitations, which clearly lie behind its most spectacular properties, but whose detailed behavior is largely unknown. Conversely, string interactions contain much useful information on higher-spin couplings, which can be very valuable in current attempts to characterize their systematics. We present a simplified form for the three-point (and four-point) amplitudes of the symmetric tensors belonging to the first Regge trajectory of the open bosonic string and relate them to local couplings and currents. These include the cases first discussed, from a field theory perspective, by Berends, Burgers and van Dam, and generalize their results in a suggestive fashion along lines recently explored by Boulanger, Metsaev and others. We also comment on the recovery of gauge symmetry in the low-tension limit, on the current-exchange amplitudes that can be built from these couplings and on the extension to mixed-symmetry states.
Sagnotti Augusto
Taronna Massimo
No associations
LandOfFree
String Lessons for Higher-Spin Interactions 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 String Lessons for Higher-Spin Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and String Lessons for Higher-Spin Interactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-615664