Journal of High Energy Physics

, 2018:71 | Cite as

Amplitudes involving massive states using pure spinor formalism

  • Subhroneel ChakrabartiEmail author
  • Sitender Pratap Kashyap
  • Mritunjay Verma
Open Access
Regular Article - Theoretical Physics


Same amplitudes evaluated independently using RNS and pure spinor formalism are expected to agree. While for massless states, this fact has been firmly established, for massive states such an explicit check has been lacking so far. We compute all massless-massless-massive 3-point functions in open supertrings in pure spinor formalism for the first massive states and compare them with the corresponding RNS results. We fix the normalization of the vertex operators of the massive states by comparing same set of 3-point functions for a fixed ordering in the two formalisms. Once fixed, the subsequent 3-point functions for each inequivalent ordering match exactly. This extends the explicit demonstration of equivalence of pure spinor and RNS formalism from massless states to first massive states.


Superstrings and Heterotic Strings Superspaces 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.


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Copyright information

© The Author(s) 2018

Authors and Affiliations

  1. 1.Harish-Chandra Research Institute, HBNIAllahabadIndia
  2. 2.International Centre for Theoretical SciencesBengaluruIndia

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