Work

Massless representation of massive superfields and tree amplitudes with the pure spinor formalism

Year: 2025

Type: article

Abstract: A bstract We construct the unintegrated vertex operator at the first mass level of the open superstring from the OPE of massless vertices. Using BRST cohomology manipulations, the tree amplitude of two massless and one massive state is rewritten in terms of the pure spinor superspace kinematic expression of the massless four-point amplitude at the α ′ 2 level. A generalization relating the partial n -point tree amplitudes with one massive state and linear combinations of the α ′ 2 corrections to n +1 massless amplitudes is found and shown to be consistent with unitarity.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep02(2025)215

Authors: Sitender Pratap Kashyap, Carlos R. Mafra, Mritunjay Verma, Luis Ypanaqué

Institutions: Chennai Mathematical Institute, University of Southampton, Indian Institute of Technology Indore

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4408044261

FWCI: 1.894

Cites: 47

Cited by: 4

Related to: 10