Tension between string amplitude prescriptions with presumed spacetime supersymmetry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00642922" target="_blank" >RIV/68378271:_____/25:00642922 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0374228" target="_blank" >https://hdl.handle.net/11104/0374228</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP11(2025)118" target="_blank" >10.1007/JHEP11(2025)118</a>

Result language
angličtina
Original language name
Tension between string amplitude prescriptions with presumed spacetime supersymmetry
Original language description
We analyze an alternative prescription for computing tree level scattering amplitudes in the pure spinor superstring. Proposed by Berkovits, and inspired by an earlier work by Lee and Siegel, it bypasses the traditional ghost number three measure of the pure spinor ghosts, ⟨λ^3 θ^5⟩=1, arguably simplifying the calculation. However, direct computations using the free field OPEs of the target superspace CFT fail to reproduce the expected SL(2,ℂ) invariance of tree level correlators. This persistent mismatch, confirmed through independent methods, is not compatible with the gauge invariance of the amplitude. We also discuss possible implications for the B-RNS-GSS formalism of the superstring.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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