منابع مشابه
Covariant Multiloop Superstring Amplitudes
Talk given at Strings 2004 In these proceedings, the multiloop amplitude prescription using the super-Poincaré invariant pure spinor formalism for the superstring is reviewed. Unlike the RNS prescription , there is no sum over spin structures and surface terms coming from the boundary of moduli space can be ignored. Massless N-point multiloop amplitudes vanish for N < 4, which implies (with two...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2013
ISSN: 1029-8479
DOI: 10.1007/jhep08(2013)135