Notes on the ambitwistor pure spinor string

Renann Lipinski Jusinskas

Notes on the ambitwistor pure spinor string

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arxiv 1604.02915 v2 pith:S35PLGMC submitted 2016-04-11 hep-th

Renann Lipinski Jusinskas This is my paper · ORCID

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keywords ghostpurespinorambitwistorbrstheteroticstringaddressed

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abstract

In this work, some aspects of the ambitwistor pure spinor string are investigated. The $b$ ghost is presented and its main properties are derived in a simple way, very similar to the usual pure spinor $b$ ghost construction. The heterotic case is also addressed with a new proposal for the BRST charge. The BRST cohomology is shown to correctly describe the heterotic supergravity spectrum and a semi-composite $b$ ghost is constructed.

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