Fermionic superstring loop amplitudes in the pure spinor formalism

Details Fermionic superstring loop amplitudes in the pure spinor formalism Fermionic superstring loop amplitudes in the pure spinor formalism

2007-04-02

arxiv.org/abs/0704.0015v2

JHEP 0705:034,2007

Physics

High Energy Physics

High Energy Physics - Theory

22 pages; signs and coefficients adjusted for anticommuting superfields, section 4.3 changed accordingly, reference added

Scientific paper

10.1088/1126-6708/2007/05/034

The pure spinor formulation of the ten-dimensional superstring leads to manifestly supersymmetric loop amplitudes, expressed as integrals in pure spinor superspace. This paper explores different methods to evaluate these integrals and then uses them to calculate the kinematic factors of the one-loop and two-loop massless four-point amplitudes involving two and four Ramond states.

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