Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-10-25
Nucl.Phys.B751:53-74,2006
Physics
High Energy Physics
High Energy Physics - Theory
LaTex, 30 pp
Scientific paper
10.1016/j.nuclphysb.2006.05.021
We compute partition functions describing multiplicities and charges of massless and first massive string states of pure-spinor superstrings in 3,4,6,10 dimensions. At the massless level we find a spin-one gauge multiplet of minimal supersymmetry in d dimensions. At the first massive string level we find a massive spin-two multiplet. The result is confirmed by a direct analysis of the BRST cohomology at ghost number one. The central charges of the pure spinor systems are derived in a manifestly SO(d) covariant way confirming that the resulting string theories are critical. A critical string model with N=(2,0) supersymmetry in d=2 is also described.
Grassi Pietro Antonio
Morales Morera J. F.
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