Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-06-05
JHEP 0409:047,2004
Physics
High Energy Physics
High Energy Physics - Theory
45 pages harvmac tex, added minor clarifications
Scientific paper
10.1088/1126-6708/2004/09/047
A ten-dimensional super-Poincare covariant formalism for the superstring was recently developed which involves a BRST operator constructed from superspace matter variables and a pure spinor ghost variable. A super-Poincare covariant prescription was defined for computing tree amplitudes and was shown to coincide with the standard RNS prescription. In this paper, picture-changing operators are used to define functional integration over the pure spinor ghosts and to construct a suitable $b$ ghost. A super-Poincare covariant prescription is then given for the computation of N-point multiloop amplitudes. One can easily prove that massless N-point multiloop amplitudes vanish for N<4, confirming the perturbative finiteness of superstring theory. One can also prove the Type IIB S-duality conjecture that $R^4$ terms in the effective action receive no perturbative contributions above one loop.
No associations
LandOfFree
Multiloop Amplitudes and Vanishing Theorems using the Pure Spinor Formalism for the Superstring does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Multiloop Amplitudes and Vanishing Theorems using the Pure Spinor Formalism for the Superstring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiloop Amplitudes and Vanishing Theorems using the Pure Spinor Formalism for the Superstring will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-382232