A relation between massive and massless string tree amplitudes

2023/11/20 by Kashyap, Sitender Pratap, Mafra, Carlos R., Verma, Mritunjay +1
#FOS: Physical sciences #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2311.12100

Abstract

We uncover a relation between the scattering amplitudes of massive strings and the α' expansion of the massless string amplitude at tree level. More precisely, the n-point tree amplitude of n-1 massless and one massive state is written as a linear combination of n+1 massless string amplitudes at the α'² order.

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