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arXiv · 1610.02052

Chiral Closed strings: Four massless states scattering amplitude

Marcelo M. Leite·Warren Siegel
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Abstract

We compute the scattering amplitudes of four massless states for chiral (closed) bosonic and type II superstrings using the Kawai-Lewellen-Tye ($KLT$) factorization method. The amplitude in the chiral bosonic case is identical to a field theory amplitude corresponding to the spin-$2$ tachyon, massless gravitational sector and massive spin-2 tardyon states of the spectrum. Chiral type II superstrings amplitude only possess poles associated with the massless gravitational sector. We briefly discuss the extension of the calculation to heterotic superstrings.

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Marcelo M. Leite, Warren Siegel. 2016-10-06. Chiral Closed strings: Four massless states scattering amplitude. https://doi.org/10.1007/jhep01(2017)057

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